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For probabilistic assessment of general earthquake hazard, see Earthquake forecasting.

Earthquake prediction is a branch of the science of seismology concerned with the specification of the time, location, and magnitude of future earthquakes within stated limits, and particularly "the determination of parameters for the next strong earthquake to occur in a region. Earthquake prediction is sometimes distinguished from earthquake forecasting, which can be defined as the probabilistic assessment of general earthquake hazard, including the frequency and magnitude of damaging earthquakes in a given area over years or decades. Prediction can be further distinguished from earthquake warning systems, which upon detection of an earthquake, provide a real-time warning of seconds to neighboring regions that might be affected.

In the 1970s, scientists were optimistic that a practical method for predicting earthquakes would soon be found, but by the 1990s continuing failure led many to question whether it was even possible. Demonstrably successful predictions of large earthquakes have not occurred and the few claims of success are controversial. For example, the most famous claim of a successful prediction is that alleged for the 1975 Haicheng earthquake. A later study said that there was no valid short-term prediction. Extensive searches have reported many possible earthquake precursors, but, so far, such precursors have not been reliably identified across significant spatial and temporal scales. While part of the scientific community hold that, taking into account non-seismic precursors and given enough resources to study them extensively, prediction might be possible, most scientists are pessimistic and some maintain that earthquake prediction is inherently impossible.

Evaluating earthquake predictions

See also: Prediction § Prediction in science

Predictions are deemed significant if they can be shown to be successful beyond random chance. Therefore, methods of statistical hypothesis testing are used to determine the probability that an earthquake such as is predicted would happen anyway (the null hypothesis). The predictions are then evaluated by testing whether they correlate with actual earthquakes better than the null hypothesis.

In many instances, however, the statistical nature of earthquake occurrence is not simply homogeneous. Clustering occurs in both space and time. In southern California about 6% of M≥3.0 earthquakes are "followed by an earthquake of larger magnitude within 5 days and 10 km." In central Italy 9.5% of M≥3.0 earthquakes are followed by a larger event within 48 hours and 30 km. While such statistics are not satisfactory for purposes of prediction (giving ten to twenty false alarms for each successful prediction) they will skew the results of any analysis that assumes that earthquakes occur randomly in time, for example, as realized from a Poisson process. It has been shown that a "naive" method based solely on clustering can successfully predict about 5% of earthquakes; "far better than 'chance'".

The Dilemma: To Alarm? or Not to Alarm?

As the purpose of short-term prediction is to enable emergency measures to reduce death and destruction, failure to give warning of a major earthquake, that does occur, or at least an adequate evaluation of the hazard, can result in legal liability, or even political purging. For example, it has been reported that members of the Chinese Academy of Sciences were purged for "having ignored scientific predictions of the disastrous Tangshan earthquake of summer 1976." Following the L'Aquila earthquake of 2009, seven scientists and technicians in Italy were convicted of manslaughter, but not so much for failing to predict the 2009 L'Aquila Earthquake (where some 300 people died) as for giving undue assurance to the populace – one victim called it "anaesthetizing" – that there would not be a serious earthquake, and therefore no need to take precautions. But warning of an earthquake that does not occur also incurs a cost: not only the cost of the emergency measures themselves, but of civil and economic disruption. False alarms, including alarms that are canceled, also undermine the credibility, and thereby the effectiveness, of future warnings. In 1999 it was reported that China was introducing "tough regulations intended to stamp out ‘false’ earthquake warnings, in order to prevent panic and mass evacuation of cities triggered by forecasts of major tremors." This was prompted by "more than 30 unofficial earthquake warnings ... in the past three years, none of which has been accurate." The acceptable trade-off between missed quakes and false alarms depends on the societal valuation of these outcomes. The rate of occurrence of both must be considered when evaluating any prediction method.

In a 1997 study of the cost-benefit ratio of earthquake prediction research in Greece, Stathis Stiros suggested that even a (hypothetical) excellent prediction method would be of questionable social utility, because "organized evacuation of urban centers is unlikely to be successfully accomplished", while "panic and other undesirable side-effects can also be anticipated." He found that earthquakes kill less than ten people per year in Greece (on average), and that most of those fatalities occurred in large buildings with identifiable structural issues. Therefore, Stiros stated that it would be much more cost-effective to focus efforts on identifying and upgrading unsafe buildings. Since the death toll on Greek highways is more than 2300 per year on average, he argued that more lives would also be saved if Greece's entire budget for earthquake prediction had been used for street and highway safety instead.

Prediction methods

Earthquake prediction is an immature science—it has not yet led to a successful prediction of an earthquake from first physical principles. Research into methods of prediction therefore focus on empirical analysis, with two general approaches: either identifying distinctive precursors to earthquakes, or identifying some kind of geophysical trend or pattern in seismicity that might precede a large earthquake. Precursor methods are pursued largely because of their potential utility for short-term earthquake prediction or forecasting, while 'trend' methods are generally thought to be useful for forecasting, long term prediction (10 to 100 years time scale) or intermediate term prediction (1 to 10 years time scale).

Precursors

An earthquake precursor is an anomalous phenomenon that might give effective warning of an impending earthquake. Reports of these – though generally recognized as such only after the event – number in the thousands, some dating back to antiquity. There have been around 400 reports of possible precursors in scientific literature, of roughly twenty different types, running the gamut from aeronomy to zoology. None have been found to be reliable for the purposes of earthquake prediction.

In the early 1990, the IASPEI solicited nominations for a Preliminary List of Significant Precursors. Forty nominations were made, of which five were selected as possible significant precursors, with two of those based on a single observation each.

After a critical review of the scientific literature the International Commission on Earthquake Forecasting for Civil Protection (ICEF) concluded in 2011 there was "considerable room for methodological improvements in this type of research." In particular, many cases of reported precursors are contradictory, lack a measure of amplitude, or are generally unsuitable for a rigorous statistical evaluation. Published results are biased towards positive results, and so the rate of false negatives (earthquake but no precursory signal) is unclear.

Animal behavior

For centuries there have been anecdotal accounts of anomalous animal behavior preceding and associated with earthquakes. In cases where animals display unusual behavior some tens of seconds prior to a quake, it has been suggested they are responding to the P-wave. These travel through the ground about twice as fast as the S-waves that cause most severe shaking. They predict not the earthquake itself — that has already happened — but only the imminent arrival of the more destructive S-waves.

It has also been suggested that unusual behavior hours or even days beforehand could be triggered by foreshock activity at magnitudes that most people do not notice. Another confounding factor of accounts of unusual phenomena is skewing due to "flashbulb memories": otherwise unremarkable details become more memorable and more significant when associated with an emotionally powerful event such as an earthquake. A study that attempted to control for these kinds of factors found an increase in unusual animal behavior (possibly triggered by foreshocks) in one case, but not in four other cases of seemingly similar earthquakes.

Dilatancy–diffusion

In the 1970s the dilatancy–diffusion hypothesis was highly regarded as providing a physical basis for various phenomena seen as possible earthquake precursors. It was based on "solid and repeatable evidence" from laboratory experiments that highly stressed crystalline rock experienced a change in volume, or dilatancy, which causes changes in other characteristics, such as seismic velocity and electrical resistivity, and even large-scale uplifts of topography. It was believed this happened in a 'preparatory phase' just prior to the earthquake, and that suitable monitoring could therefore warn of an impending quake.

Detection of variations in the relative velocities of the primary and secondary seismic waves – expressed as Vp/Vs – as they passed through a certain zone was the basis for predicting the 1973 Blue Mountain Lake (NY) and 1974 Riverside (CA) quake. Although these predictions were informal and even trivial, their apparent success was seen as confirmation of both dilatancy and the existence of a preparatory process, leading to what were subsequently called "wildly over-optimistic statements" that successful earthquake prediction "appears to be on the verge of practical reality."

However, many studies questioned these results, and the hypothesis eventually languished. Subsequent study showed it "failed for several reasons, largely associated with the validity of the assumptions on which it was based", including the assumption that laboratory results can be scaled up to the real world. Another factor was the bias of retrospective selection of criteria. Other studies have shown dilatancy to be so negligible that Main et al. 2012 concluded: "The concept of a large-scale 'preparation zone' indicating the likely magnitude of a future event, remains as ethereal as the ether that went undetected in the Michelson–Morley experiment."

Changes in V_p/V_s

V_p is the symbol for the velocity of a seismic "P" (primary or pressure) wave passing through rock, while V_s is the symbol for the velocity of the "S" (secondary or shear) wave. Small-scale laboratory experiments have shown that the ratio of these two velocities – represented as V_p/V_s – changes when rock is near the point of fracturing. In the 1970s it was considered a likely breakthrough when Russian seismologists reported observing such changes (later discounted.) in the region of a subsequent earthquake. This effect, as well as other possible precursors, has been attributed to dilatancy, where rock stressed to near its breaking point expands (dilates) slightly.

Study of this phenomenon near Blue Mountain Lake in New York State led to a successful albeit informal prediction in 1973, and it was credited for predicting the 1974 Riverside (CA) quake. However, additional successes have not followed, and it has been suggested that these predictions were a flukes. A V_p/V_s anomaly was the basis of a 1976 prediction of a M 5.5 to 6.5 earthquake near Los Angeles, which failed to occur. Other studies relying on quarry blasts (more precise, and repeatable) found no such variations, while an analysis of two earthquakes in California found that the variations reported were more likely caused by other factors, including retrospective selection of data. Geller (1997) noted that reports of significant velocity changes have ceased since about 1980.

Radon emissions

Most rock contains small amounts of gases that can be isotopically distinguished from the normal atmospheric gases. There are reports of spikes in the concentrations of such gases prior to a major earthquake; this has been attributed to release due to pre-seismic stress or fracturing of the rock. One of these gases is radon, produced by radioactive decay of the trace amounts of uranium present in most rock.

Radon is useful as a potential earthquake predictor because it is radioactive and thus easily detected, and its short half-life (3.8 days) makes radon levels sensitive to short-term fluctuations. A 2009 review found 125 reports of changes in radon emissions prior to 86 earthquakes since 1966. But as the ICEF found in its review, the earthquakes with which these changes are supposedly linked were up to a thousand kilometers away, months later, and at all magnitudes. In some cases the anomalies were observed at a distant site, but not at closer sites. The ICEF found "no significant correlation". Another review concluded that in some cases changes in radon levels preceded an earthquake, but a correlation is not yet firmly established.

Electromagnetic anomalies

Observations of electromagnetic disturbances and their attribution to the earthquake failure process go back as far as the Great Lisbon earthquake of 1755, but practically all such observations prior to the mid-1960s are invalid because the instruments used were sensitive to physical movement. Since then various anomalous electrical, electric-resistive, and magnetic phenomena have been attributed to precursory stress and strain changes that precede earthquakes, raising hopes for finding a reliable earthquake precursor. While a handful of researchers have gained much attention with either theories of how such phenomena might be generated, claims of having observed such phenomena prior to an earthquake, no such phenomena has been shown to be an actual precursor.

A 2011 review by the International Commission on Earthquake Forecasting for Civil Protection (ICEF) found the "most convincing" electromagnetic precursors to be ULF magnetic anomalies, such as the Corralitos event (discussed below) recorded before the 1989 Loma Prieta earthquake. However, it is now believed that observation was a system malfunction. Study of the closely monitored 2004 Parkfield earthquake found no evidence of precursory electromagnetic signals of any type; further study showed that earthquakes with magnitudes less than 5 do not produce significant transient signals. The ICEF considered the search for useful precursors to have been unsuccessful.

See also: Seismo-electromagnetics

VAN seismic electric signals

The most touted, and most criticized, claim of an electromagnetic precursor is the VAN method of physics professors Panayiotis Varotsos, Kessar Alexopoulos and Konstantine Nomicos {VAN) of the University of Athens. In a 1981 paper they claimed that by measuring geoelectric voltages – what they called "seismic electric signals" (SES) – they could predict earthquakes of magnitude larger than 2.8 within all of Greece up to seven hours beforehand.

In 1984 they claimed there was a "one-to-one correspondence" between SES and earthquakes – that is, that "every sizable EQ is preceded by an SES and inversely every SES is always followed by an EQ the magnitude and the epicenter of which can be reliably predicted" – the SES appearing between 6 and 115 hours before the earthquake. As proof of their method they claimed a series of successful predictions.

Although their report was "saluted by some as a major breakthrough", among seismologists it was greeted by a "wave of generalized skepticism". In 1996 a paper VAN submitted to the journal Geophysical Research Letters was given an unprecedented public peer-review by a broad group of reviewers, with the paper and reviews published in a special issue; the majority of reviewers found the methods of VAN to be flawed. Additional criticism was raised the same year in a public debate between some of the principals.

A primary criticism was that the method is geophysically implausible and scientifically unsound. Additional objections included the demonstrable falsity of the claimed one-to-one relationship of earthquakes and SES, the unlikelihood of a precursory process generating signals stronger than any observed from the actual earthquakes, and the very strong likelihood that the signals were man-made. Further work in Greece has tracked SES-like "anomalous transient electric signals" back to specific human sources, and found that such signals are not excluded by the criteria used by VAN to identify SES.

The validity of the VAN method, and therefore the predictive significance of SES, was based primarily on the empirical claim of demonstrated predictive success. Numerous weaknesses have been uncovered in the VAN methodology, and in 2011 the International Commission on Earthquake Forecasting for Civil Protection concluded that the prediction capability claimed by VAN could not be validated. Most seismologists consider VAN to have been "resoundingly debunked".

Since 2001, the VAN group has introduced a concept they call "natural time", applied to the analysis of their precursors. Initially it is applied on SES to distinguish them from noise and relate them to a possible impending earthquake. In case of verification (classification as "SES activity"), natural time analysis is additionally applied to the general subsequent seismicity of the area associated with the SES activity, in order to improve the time parameter of the prediction. The method treats earthquake onset as a critical phenomenon.

Further information: VAN method

Corralitos anomaly

Probably the most celebrated seismo-electromagnetic event ever, and one of the most frequently cited examples of a possible earthquake precursor, is the 1989 Corralitos anomaly. In the month prior to the 1989 Loma Prieta earthquake measurements of the earth's magnetic field at ultra-low frequencies by a magnetometer in Corralitos, California, just 7 km from the epicenter of the impending earthquake, started showing anomalous increases in amplitude. Just three hours before the quake the measurements soared to about thirty times greater than normal, with amplitudes tapering off after the quake. Such amplitudes had not been seen in two years of operation, nor in a similar instrument located 54 km away. To many people such apparent locality in time and space suggested an association with the earthquake.

Additional magnetometers were subsequently deployed across northern and southern California, but after ten years, and several large earthquakes, similar signals have not been observed. More recent studies have cast doubt on the connection, attributing the Corralitos signals to either unrelated magnetic disturbance or, even more simply, to sensor-system malfunction.

Freund physics

In his investigations of crystalline physics, Friedemann Freund found that water molecules embedded in rock can dissociate into ions if the rock is under intense stress. The resulting charge carriers can generate battery currents under certain conditions. Freund suggested that perhaps these currents could be responsible for earthquake precursors such as electromagnetic radiation, earthquake lights and disturbances of the plasma in the ionosphere. The study of such currents and interactions is known as "Freund physics".

Most seismologists reject Freund's suggestion that stress-generated signals can be detected and put to use as precursors, for a number of reasons. First, it is believed that stress does not accumulate rapidly before a major earthquake, and thus there is no reason to expect large currents to be rapidly generated. Secondly, seismologists have extensively searched for statistically reliable electrical precursors, using sophisticated instrumentation, and have not identified any such precursors. And thirdly, water in the earth's crust would cause any generated currents to be absorbed before reaching the surface.

Disturbance of the daily cycle of the ionosphere

The ULF* recording of the D layer retention of the ionosphere which absorbs EM radiation during the nights before the earthquake in L'Aquila, Italy on 6/4/2009. The anomaly is indicated in red.

The ionosphere usually develops its lower D layer during the day, while at night this layer disappears as the plasma there turns to gas. During the night, the F layer of the ionosphere remains formed, in higher altitude than D layer. A waveguide for low HF radio frequencies up to 10 MHz is formed during the night (skywave propagation) as the F layer reflects these waves back to the Earth. The skywave is lost during the day, as the D layer absorbs these waves.

Tectonic stresses in the Earth's crust are claimed to cause waves of electric charges that travel to the surface of the Earth and affect the ionosphere. ULF* recordings of the daily cycle of the ionosphere indicate that the usual cycle could be disturbed a few days before a shallow strong earthquake. When the disturbance occurs, it is observed that either the D layer is lost during the day resulting to ionosphere elevation and skywave formation or the D layer appears at night resulting to lower of the ionosphere and hence absence of skywave.

Science centers have developed a network of VLF transmitters and receivers on a global scale that detect changes in skywave. Each receiver is also daisy transmitter for distances of 1000 - 10,000 kilometers and is operating at different frequencies within the network. The general area under excitation can be determined depending on the density of the network.

Satellite observation of the expected ground temperature declination

The thermal night recording on January 6, 21 and 28, 2001 in the Gujarat region of India. Marked with astrisk is the epicenter of the Bhuj earthquake on January 26 that was of 7.9 magnitude. The intermidiate recording reveals a thermal anomaly on January 21 which is shown in red. In the next recording, 2 days after the earthquake, the thermal anomaly has disappeared.

One way of detecting the mobility of tectonic stresses is to detect locally elevated temperatures on the surface of the crust measured by satellites. During the evaluation process, the background of daily variation and noise due to atmospheric disturbances and human activities are removed before visualizing the concentration of trends in the wider area of a fault. This method has been experimentally applied since 1995.

In a newer approach to explain the phenomenon, NASA's Friedmann Freund has proposed that the infrared radiation captured by the satellites is not due to a real increase in the surface temperature of the crust. According to this version the emission is a result of the quantum excitation that occurs at the chemical re-bonding of positive charge carriers (holes) which are traveling from the deepest layers to the surface of the crust at a speed of 200 meters per second. The electric charge arises as a result of increasing tectonic stresses as the time of the earthquake approaches. This emission extends superficially up to 500 x 500 square kilometers for very large events and stops almost immediately after the earthquake.

Trends

Instead of watching for anomalous phenomena that might be precursory signs of an impending earthquake, other approaches to predicting earthquakes look for trends or patterns that lead to an earthquake. As these trends may be complex and involve many variables, advanced statistical techniques are often needed to understand them, therefore these are sometimes called statistical methods. These approaches also tend to be more probabilistic, and to have larger time periods, and so merge into earthquake forecasting.

Elastic rebound

Even the stiffest of rock is not perfectly rigid. Given a large force (such as between two immense tectonic plates moving past each other) the earth's crust will bend or deform. According to the elastic rebound theory of Reid (1910), eventually the deformation (strain) becomes great enough that something breaks, usually at an existing fault. Slippage along the break (an earthquake) allows the rock on each side to rebound to a less deformed state. In the process energy is released in various forms, including seismic waves. The cycle of tectonic force being accumulated in elastic deformation and released in a sudden rebound is then repeated. As the displacement from a single earthquake ranges from less than a meter to around 10 meters (for an M 8 quake), the demonstrated existence of large strike-slip displacements of hundreds of miles shows the existence of a long running earthquake cycle.

Characteristic earthquakes

The most studied earthquake faults (such as the Nankai megathrust, the Wasatch fault, and the San Andreas fault) appear to have distinct segments. The characteristic earthquake model postulates that earthquakes are generally constrained within these segments. As the lengths and other properties of the segments are fixed, earthquakes that rupture the entire fault should have similar characteristics. These include the maximum magnitude (which is limited by the length of the rupture), and the amount of accumulated strain needed to rupture the fault segment. Since continuous plate motions cause the strain to accumulate steadily, seismic activity on a given segment should be dominated by earthquakes of similar characteristics that recur at somewhat regular intervals. For a given fault segment, identifying these characteristic earthquakes and timing their recurrence rate (or conversely return period) should therefore inform us about the next rupture; this is the approach generally used in forecasting seismic hazard. UCERF3 is a notable example of such a forecast, prepared for the state of California. Return periods are also used for forecasting other rare events, such as cyclones and floods, and assume that future frequency will be similar to observed frequency to date.

The idea of characteristic earthquakes was the basis of the Parkfield prediction: fairly similar earthquakes in 1857, 1881, 1901, 1922, 1934, and 1966 suggested a pattern of breaks every 21.9 years, with a standard deviation of ±3.1 years. Extrapolation from the 1966 event led to a prediction of an earthquake around 1988, or before 1993 at the latest (at the 95% confidence interval). The appeal of such a method is that the prediction is derived entirely from the trend, which supposedly accounts for the unknown and possibly unknowable earthquake physics and fault parameters. However, in the Parkfield case the predicted earthquake did not occur until 2004, a decade late. This seriously undercuts the claim that earthquakes at Parkfield are quasi-periodic, and suggests the individual events differ sufficiently in other respects to question whether they have distinct characteristics in common.

The failure of the Parkfield prediction has raised doubt as to the validity of the characteristic earthquake model itself. Some studies have questioned the various assumptions, including the key one that earthquakes are constrained within segments, and suggested that the "characteristic earthquakes" may be an artifact of selection bias and the shortness of seismological records (relative to earthquake cycles). Other studies have considered whether other factors need to be considered, such as the age of the fault. Whether earthquake ruptures are more generally constrained within a segment (as is often seen), or break past segment boundaries (also seen), has a direct bearing on the degree of earthquake hazard: earthquakes are larger where multiple segments break, but in relieving more strain they will happen less often.

Seismic gaps

At the contact where two tectonic plates slip past each other every section must eventually slip, as (in the long-term) none get left behind. But they do not all slip at the same time; different sections will be at different stages in the cycle of strain (deformation) accumulation and sudden rebound. In the seismic gap model the "next big quake" should be expected not in the segments where recent seismicity has relieved the strain, but in the intervening gaps where the unrelieved strain is the greatest. This model has an intuitive appeal; it is used in long-term forecasting, and was the basis of a series of circum-Pacific (Pacific Rim) forecasts in 1979 and 1989–1991.

However, some underlying assumptions about seismic gaps are now known to be incorrect. A close examination suggests that "there may be no information in seismic gaps about the time of occurrence or the magnitude of the next large event in the region"; statistical tests of the circum-Pacific forecasts shows that the seismic gap model "did not forecast large earthquakes well". Another study concluded that a long quiet period did not increase earthquake potential.

Seismicity patterns

Various heuristically derived algorithms have been developed for predicting earthquakes. Probably the most widely known is the M8 family of algorithms (including the RTP method) developed under the leadership of Vladimir Keilis-Borok. M8 issues a "Time of Increased Probability" (TIP) alarm for a large earthquake of a specified magnitude upon observing certain patterns of smaller earthquakes. TIPs generally cover large areas (up to a thousand kilometers across) for up to five years. Such large parameters have made M8 controversial, as it is hard to determine whether any hits that happened were skillfully predicted, or only the result of chance.

M8 gained considerable attention when the 2003 San Simeon and Hokkaido earthquakes occurred within a TIP. In 1999, Keilis-Borok's group published a claim to have achieved statistically significant intermediate-term results using their M8 and MSc models, as far as world-wide large earthquakes are regarded. However, Geller et al. are skeptical of prediction claims over any period shorter than 30 years. A widely publicized TIP for an M 6.4 quake in Southern California in 2004 was not fulfilled, nor two other lesser known TIPs. A deep study of the RTP method in 2008 found that out of some twenty alarms only two could be considered hits (and one of those had a 60% chance of happening anyway). It concluded that "RTP is not significantly different from a naïve method of guessing based on the historical rates [of] seismicity."

Accelerating moment release (AMR, "moment" being a measurement of seismic energy), also known as time-to-failure analysis, or accelerating seismic moment release (ASMR), is based on observations that foreshock activity prior to a major earthquake not only increased, but increased at an exponential rate. In other words, a plot of the cumulative number of foreshocks gets steeper just before the main shock.

Following formulation by Bowman et al. (1998) into a testable hypothesis, and a number of positive reports, AMR seemed promising despite several problems. Known issues included not being detected for all locations and events, and the difficulty of projecting an accurate occurrence time when the tail end of the curve gets steep. But rigorous testing has shown that apparent AMR trends likely result from how data fitting is done, and failing to account for spatiotemporal clustering of earthquakes. The AMR trends are therefore statistically insignificant. Interest in AMR (as judged by the number of peer-reviewed papers) has fallen off since 2004.

Notable predictions

These are predictions, or claims of predictions, that are notable either scientifically or because of public notoriety, and claim a scientific or quasi-scientific basis. As many predictions are held confidentially, or published in obscure locations, and become notable only when they are claimed, there may be a selection bias in that hits get more attention than misses. The predictions listed here are discussed in Hough's book and Geller's paper.

1975: Haicheng, China

The M 7.3 1975 Haicheng earthquake is the most widely cited "success" of earthquake prediction. The ostensible story is that study of seismic activity in the region led the Chinese authorities to issue a medium-term prediction in June 1974, and the political authorities therefore ordered various measures taken, including enforced evacuation of homes, construction of "simple outdoor structures", and showing of movies out-of-doors. The quake, striking at 19:36, was powerful enough to destroy or badly damage about half of the homes. However, the "effective preventative measures taken" were said to have kept the death toll under 300 in an area with population of about 1.6 million, where otherwise tens of thousands of fatalities might have been expected.

However, although a major earthquake occurred, there has been some skepticism about the narrative of measures taken on the basis of a timely prediction. This event occurred during the Cultural Revolution, when "belief in earthquake prediction was made an element of ideological orthodoxy that distinguished the true party liners from right wing deviationists". Recordkeeping was disordered, making it difficult to verify details, including whether there was any ordered evacuation. The method used for either the medium-term or short-term predictions (other than "Chairman Mao's revolutionary line") has not been specified. The evacuation may have been spontaneous, following the strong (M 4.7) foreshock that occurred the day before.

A 2006 study that had access to an extensive range of records found that the predictions were flawed. "In particular, there was no official short-term prediction, although such a prediction was made by individual scientists." Also: "it was the foreshocks alone that triggered the final decisions of warning and evacuation". They estimated that 2,041 lives were lost. That more did not die was attributed to a number of fortuitous circumstances, including earthquake education in the previous months (prompted by elevated seismic activity), local initiative, timing (occurring when people were neither working nor asleep), and local style of construction. The authors conclude that, while unsatisfactory as a prediction, "it was an attempt to predict a major earthquake that for the first time did not end up with practical failure."

Further information: 1975 Haicheng earthquake

1981: Lima, Peru (Brady)

In 1976 Brian Brady, a physicist then at the U.S. Bureau of Mines, where he had studied how rocks fracture, "concluded a series of four articles on the theory of earthquakes with the deduction that strain building in the subduction zone [off-shore of Peru] might result in an earthquake of large magnitude within a period of seven to fourteen years from mid November 1974." In an internal memo written in June 1978 he narrowed the time window to "October to November, 1981", with a main shock in the range of 9.2±0.2. In a 1980 memo he was reported as specifying "mid-September 1980". This was discussed at a scientific seminar in San Juan, Argentina, in October 1980, where Brady's colleague, W. Spence, presented a paper. Brady and Spence then met with government officials from the U.S. and Peru on 29 October, and "forecast a series of large magnitude earthquakes in the second half of 1981." This prediction became widely known in Peru, following what the U.S. embassy described as "sensational first page headlines carried in most Lima dailies" on January 26, 1981.

On 27 January 1981, after reviewing the Brady-Spence prediction, the U.S. National Earthquake Prediction Evaluation Council (NEPEC) announced it was "unconvinced of the scientific validity" of the prediction, and had been "shown nothing in the observed seismicity data, or in the theory insofar as presented, that lends substance to the predicted times, locations, and magnitudes of the earthquakes." It went on to say that while there was a probability of major earthquakes at the predicted times, that probability was low, and recommend that "the prediction not be given serious consideration."

Unfazed, Brady subsequently revised his forecast, stating there would be at least three earthquakes on or about July 6, August 18 and September 24, 1981, leading one USGS official to complain: "If he is allowed to continue to play this game ... he will eventually get a hit and his theories will be considered valid by many."

On June 28 (the date most widely taken as the date of the first predicted earthquake), it was reported that: "the population of Lima passed a quiet Sunday". The headline on one Peruvian newspaper: "NO PASO NADA" ("Nothing happens").

In July Brady formally withdrew his prediction on the grounds that prerequisite seismic activity had not occurred. Economic losses due to reduced tourism during this episode has been roughly estimated at one hundred million dollars.

1985–1993: Parkfield, U.S. (Bakun-Lindh)

The "Parkfield earthquake prediction experiment" was the most heralded scientific earthquake prediction ever. It was based on an observation that the Parkfield segment of the San Andreas Fault breaks regularly with a moderate earthquake of about M 6 every several decades: 1857, 1881, 1901, 1922, 1934, and 1966. More particularly, Bakun & Lindh (1985) pointed out that, if the 1934 quake is excluded, these occur every 22 years, ±4.3 years. Counting from 1966, they predicted a 95% chance that the next earthquake would hit around 1988, or 1993 at the latest. The National Earthquake Prediction Evaluation Council (NEPEC) evaluated this, and concurred. The U.S. Geological Survey and the State of California therefore established one of the "most sophisticated and densest nets of monitoring instruments in the world", in part to identify any precursors when the quake came. Confidence was high enough that detailed plans were made for alerting emergency authorities if there were signs an earthquake was imminent. In the words of the Economist: "never has an ambush been more carefully laid for such an event."

1993 came, and passed, without fulfillment. Eventually there was an M 6.0 earthquake on the Parkfield segment of the fault, on 28 September 2004, but without forewarning or obvious precursors. While the experiment in catching an earthquake is considered by many scientists to have been successful, the prediction was unsuccessful in that the eventual event was a decade late.

Further information: Parkfield earthquake

1983–1995: Greece (VAN)

In 1981, the "VAN" group, headed by Panayiotis Varotsos, said that they found a relationship between earthquakes and 'seismic electric signals' (SES). In 1984 they presented a table of 23 earthquakes from 19 January 1983 to 19 September 1983, of which they claimed to have successfully predicted 18 earthquakes. Other lists followed, such as their 1991 claim of predicting six out of seven earthquakes with M_s  ≥ 5.5 in the period of 1 April 1987 through 10 August 1989, or five out of seven earthquakes with M_s  ≥ 5.3 in the overlapping period of 15 May 1988 to 10 August 1989, In 1996 they published a "Summary of all Predictions issued from January 1st, 1987 to June 15, 1995", amounting to 94 predictions. Matching this against a list of "All earthquakes with M_S(ATH)" and within geographical bounds including most of Greece they come up with a list of 14 earthquakes they should have predicted. Here they claim ten successes, for a success rate of 70%, but also a false alarm rate of 89%.

The VAN predictions have been criticized on various grounds, including being geophysically implausible, "vague and ambiguous", failing to satisfy prediction criteria, and retroactive adjustment of parameters. A critical review of 14 cases where VAN claimed 10 successes showed only one case where an earthquake occurred within the prediction parameters. The VAN predictions not only fail to do better than chance, but show "a much better association with the events which occurred before them", according to Mulargia and Gasperini. Other early reviews found that the VAN results, when evaluated by definite parameters, were statistically significant. Both positive and negative views on VAN predictions from this period were summarized in the 1996 book "A Critical Review of VAN" edited by Sir James Lighthill and in a debate issue presented by the journal Geophysical Research Letters that was focused on the statistical significance of the VAN method. VAN had the opportunity to reply to their critics in those review publications. In 2011, the ICEF reviewed the 1996 debate, and concluded that the optimistic SES prediction capability claimed by VAN could not be validated.

A crucial issue is the large and often indeterminate parameters of the predictions, such that some critics say these are not predictions, and should not be recognized as such. Much of the controversy with VAN arises from this failure to adequately specify these parameters. Some of their telegrams include predictions of two distinct earthquake events, such as (typically) one earthquake predicted at 300 km "N.W" of Athens, and another at 240 km "W", "with magnitutes [sic] 5,3 and 5,8", with no time limit.

VAN has disputed the 'pessimistic' conclusions of their critics, but the critics have not relented. It was suggested that VAN failed to account for clustering of earthquakes, or that they interpreted their data differently during periods of greater seismic activity.

VAN has been criticized on several occasions for causing public panic and widespread unrest. This has been exacerbated by the broadness of their predictions, which cover large areas of Greece (up to 240 kilometers across, and often pairs of areas), much larger than the areas actually affected by earthquakes of the magnitudes predicted (usually several tens of kilometers across). Magnitudes are similarly broad: a predicted magnitude of "6.0" represents a range from a benign magnitude 5.3 to a broadly destructive 6.7. Coupled with indeterminate time windows of a month or more, such predictions "cannot be practically utilized" to determine an appropriate level of preparedness, whether to curtail usual societal functioning, or even to issue public warnings.

2008: Greece (VAN)

After 2006, VAN claim that all alarms related to SES activity have been made public by posting at arxiv.org. Such SES activity is evaluated using a new method they call 'natural time'. One such report was posted on Feb. 1, 2008, two weeks before the strongest earthquake in Greece during the period 1983-2011. This earthquake occurred on February 14, 2008, with magnitude (Mw) 6.9. VAN's report was also described in an article in the newspaper Ethnos on Feb. 10, 2008. However, Gerassimos Papadopolous complained that the VAN reports were confusing and ambiguous, and that "none of the claims for successful VAN predictions is justified."

1989: Loma Prieta, U.S.

The 1989 Loma Prieta earthquake (epicenter in the Santa Cruz Mountains northwest of San Juan Bautista, California) caused significant damage in the San Francisco Bay Area of California. The U.S. Geological Survey (USGS) reportedly claimed, twelve hours after the event, that it had "forecast" this earthquake in a report the previous year. USGS staff subsequently claimed this quake had been "anticipated"; various other claims of prediction have also been made.

Harris (1998) reviewed 18 papers (with 26 forecasts) dating from 1910 "that variously offer or relate to scientific forecasts of the 1989 Loma Prieta earthquake." (In this case no distinction is made between a forecast, which is limited to a probabilistic estimate of an earthquake happening over some time period, and a more specific prediction.) None of these forecasts can be rigorously tested due to lack of specificity, and where a forecast does bracket the correct time and location, the window was so broad (e.g., covering the greater part of California for five years) as to lose any value as a prediction. Predictions that came close (but given a probability of only 30%) had ten- or twenty-year windows.

One debated prediction came from the M8 algorithm used by Keilis-Borok and associates in four forecasts. The first of these forecasts missed both magnitude (M 7.5) and time (a five-year window from 1 January 1984, to 31 December 1988). They did get the location, by including most of California and half of Nevada. A subsequent revision, presented to the NEPEC, extended the time window to 1 July 1992, and reduced the location to only central California; the magnitude remained the same. A figure they presented had two more revisions, for M ≥ 7.0 quakes in central California. The five-year time window for one ended in July 1989, and so missed the Loma Prieta event; the second revision extended to 1990, and so included Loma Prieta.

When discussing success or failure of prediction for the Loma Prieta earthquake, some scientists argue that it did not occur on the San Andreas fault (the focus of most of the forecasts), and involved dip-slip (vertical) movement rather than strike-slip (horizontal) movement, and so was not predicted.

Other scientists argue that it did occur in the San Andreas fault zone, and released much of the strain accumulated since the 1906 San Francisco earthquake; therefore several of the forecasts were correct. Hough states that "most seismologists" do not believe this quake was predicted "per se". In a strict sense there were no predictions, only forecasts, which were only partially successful.

Iben Browning claimed to have predicted the Loma Prieta event, but (as will be seen in the next section) this claim has been rejected.

Further information: 1989 Loma Prieta earthquake

1990: New Madrid, U.S. (Browning)

Further information: Tidal triggering of earthquakes

Iben Browning (a scientist with a Ph.D. degree in zoology and training as a biophysicist, but no experience in geology, geophysics, or seismology) was an "independent business consultant" who forecast long-term climate trends for businesses. He supported the idea (scientifically unproven) that volcanoes and earthquakes are more likely to be triggered when the tidal force of the sun and the moon coincide to exert maximum stress on the earth's crust (syzygy). Having calculated when these tidal forces maximize, Browning then "projected" what areas were most at risk for a large earthquake. An area he mentioned frequently was the New Madrid Seismic Zone at the southeast corner of the state of Missouri, the site of three very large earthquakes in 1811–12, which he coupled with the date of 3 December 1990.

Browning's reputation and perceived credibility were boosted when he claimed in various promotional flyers and advertisements to have predicted (among various other events) the Loma Prieta earthquake of 17 October 1989. The National Earthquake Prediction Evaluation Council (NEPEC) formed an Ad Hoc Working Group (AHWG) to evaluate Browning's prediction. Its report (issued 18 October 1990) specifically rejected the claim of a successful prediction of the Loma Prieta earthquake. A transcript of his talk in San Francisco on 10 October showed he had said: "there will probably be several earthquakes around the world, Richter 6+, and there may be a volcano or two" – which, on a global scale, is about average for a week – with no mention of any earthquake in California.

Though the AHWG report disproved both Browning's claims of prior success and the basis of his "projection", it made little impact after a year of continued claims of a successful prediction. Browning's prediction received the support of geophysicist David Stewart, and the tacit endorsement of many public authorities in their preparations for a major disaster, all of which was amplified by massive exposure in the news media. Nothing happened on 3 December, and Browning died of a heart attack seven months later.

2004 & 2005: Southern California, U.S. (Keilis-Borok)

The M8 algorithm (developed under the leadership of Vladimir Keilis-Borok at UCLA) gained respect by the apparently successful predictions of the 2003 San Simeon and Hokkaido earthquakes. Great interest was therefore generated by the prediction in early 2004 of a M ≥ 6.4 earthquake to occur somewhere within an area of southern California of approximately 12,000 sq. miles, on or before 5 September 2004. In evaluating this prediction the California Earthquake Prediction Evaluation Council (CEPEC) noted that this method had not yet made enough predictions for statistical validation, and was sensitive to input assumptions. It therefore concluded that no "special public policy actions" were warranted, though it reminded all Californians "of the significant seismic hazards throughout the state." The predicted earthquake did not occur.

A very similar prediction was made for an earthquake on or before 14 August 2005, in approximately the same area of southern California. The CEPEC's evaluation and recommendation were essentially the same, this time noting that the previous prediction and two others had not been fulfilled. This prediction also failed.

2009: L'Aquila, Italy (Giuliani)

Main article: 2009 L'Aquila earthquake

At 03:32 on 6 April 2009, the Abruzzo region of central Italy was rocked by a magnitude M 6.3 earthquake. In the city of L'Aquila and surrounding area around 60,000 buildings collapsed or were seriously damaged, resulting in 308 deaths and 67,500 people left homeless. Around the same time, it was reported that Giampaolo Giuliani had predicted the earthquake, had tried to warn the public, but had been muzzled by the Italian government.

Giampaolo Giuliani was a laboratory technician at the Laboratori Nazionali del Gran Sasso. As a hobby he had for some years been monitoring radon using instruments he had designed and built. Prior to the L'Aquila earthquake he was unknown to the scientific community, and had not published any scientific work. He had been interviewed on 24 March by an Italian-language blog, Donne Democratiche, about a swarm of low-level earthquakes in the Abruzzo region that had started the previous December. He said that this swarm was normal and would diminish by the end of March. On 30 March, L'Aquila was struck by a magnitude 4.0 temblor, the largest to date.

On 27 March Giuliani warned the mayor of L'Aquila there could be an earthquake within 24 hours, and an earthquake M~2.3 occurred. On 29 March he made a second prediction. He telephoned the mayor of the town of Sulmona, about 55 kilometers southeast of L'Aquila, to expect a "damaging" – or even "catastrophic" – earthquake within 6 to 24 hours. Loudspeaker vans were used to warn the inhabitants of Sulmona to evacuate, with consequential panic. No quake ensued and Giuliano was cited for inciting public alarm and enjoined from making future public predictions.

After the L'Aquila event Giuliani claimed that he had found alarming rises in radon levels just hours before. He said he had warned relatives, friends and colleagues on the evening before the earthquake hit. He was subsequently interviewed by the International Commission on Earthquake Forecasting for Civil Protection, which found that Giuliani had not transmitted a valid prediction of the mainshock to the civil authorities before its occurrence.

Difficulty or impossibility

As the preceding examples show, the record of earthquake prediction has been disappointing. The optimism of the 1970s that routine prediction of earthquakes would be "soon", perhaps within ten years, was coming up disappointingly short by the 1990s, and many scientists began wondering why. By 1997 it was being positively stated that earthquakes can not be predicted, which led to a notable debate in 1999 on whether prediction of individual earthquakes is a realistic scientific goal.

Earthquake prediction may have failed only because it is "fiendishly difficult" and still beyond the current competency of science. Despite the confident announcement four decades ago that seismology was "on the verge" of making reliable predictions, there may yet be an underestimation of the difficulties. As early as 1978 it was reported that earthquake rupture might be complicated by "heterogeneous distribution of mechanical properties along the fault", and in 1986 that geometrical irregularities in the fault surface "appear to exert major controls on the starting and stopping of ruptures". Another study attributed significant differences in fault behavior to the maturity of the fault. These kinds of complexities are not reflected in current prediction methods.

Seismology may even yet lack an adequate grasp of its most central concept, elastic rebound theory. A simulation that explored assumptions regarding the distribution of slip found results "not in agreement with the classical view of the elastic rebound theory". (This was attributed to details of fault heterogeneity not accounted for in the theory.)

Earthquake prediction may be intrinsically impossible. It has been argued that the Earth is in a state of self-organized criticality "where any small earthquake has some probability of cascading into a large event". It has also been argued on decision-theoretic grounds that "prediction of major earthquakes is, in any practical sense, impossible."

That earthquake prediction might be intrinsically impossible has been strongly disputed But the best disproof of impossibility – effective earthquake prediction – has yet to be demonstrated.

See also

• Binary classification
• California earthquake forecast
• Classification rule
• Coordinating Committee for Earthquake Prediction, Japan
• Earthquake engineering
• Earthquake sensitive
• Earthquake weather
• Forecasting
• National Earthquake Prediction Evaluation Council
• Ring of Fire
• Seismo-electromagnetics
• Supermoon
• Type I and type II errors

Sources

• Aceves, Richard L.; Park, Stephen K.; Strauss, David J. (27 May 1996), "Statistical evaluation of the VAN Method using the historic earthquake catalog in Greece", Geophysical Research Letters, 23 (11): 1425–1428/, Bibcode:1996GeoRL..23.1425A, doi:10.1029/96GL01478, ISSN 1944-8007.

• The Ad Hoc Working Group on the December 2–3, 1990, Earthquake Prediction [AHWG] (18 October 1990), Evaluation of the December 2–3, 1990, New Madrid Seismic Zone Prediction{{citation}}: CS1 maint: extra punctuation (link) CS1 maint: multiple names: authors list (link) CS1 maint: numeric names: authors list (link). Included in App. B of Spence et al. 1993.

• Aggarwal, Yash P.; Sykes, Lynn R.; Simpson, David W.; Richards, Paul G. (10 February 1975), "Spatial and Temporal Variations in t_s/t_p and in P Wave Residuals at Blue Mountain Lake, New York: Application to Earthquake Prediction", Journal of Geophysical Research, 80 (5): 718–732, Bibcode:1975JGR....80..718A, doi:10.1029/JB080i005p00718.

• Alexander, David E. (2010), "The L'Aquila Earthquake of 6 April 2009 and Italian Government Policy on Disaster Response", Journal of Natural Resources Policy Research, 2 (4): 325–342, doi:10.1080/19390459.2010.511450, S2CID 153641723.

• Allen, Clarence R. (December 1976), "Responsibilities in earthquake prediction", Bulletin of the Seismological Society of America, 66 (6): 2069–2074, doi:10.1785/BSSA0660062069.

• Allen, Clarence R. (December 1982), "Earthquake Prediction – 1982 Overview", Bulletin of the Seismological Society of America, 72 (6B): S331–S335, doi:10.1785/BSSA07206B0331.

• Allen, Clarence R. (1983), "The Southern California Earthquake Prediction of 1976 : A Prediction Unfulfilled" (PDF), Proceedings of the Seminar on Earthquake Prediction Case Histories, Geneva, 12–15 October 1982: UNDRO, pp. 77–82{{citation}}: CS1 maint: location (link).

• Anagnostopoulos, Stavros A. (June 1998), "Letter" (PDF), Physics Today, 51 (6): 96, Bibcode:1998PhT....51f..15S, doi:10.1063/1.882266.

• Apostolidis, C. (10 February 2008), "Problepsi gia seismo 6 rixter", Ethnos (in Greek), Pegasus Publishing, archived from the original on 15 July 2016, retrieved 16 July 2016.

• Atwood, L. Erwin; Major, Ann Marie (November 1998), "Exploring the "Cry Wolf" Hypothesis", International Journal of Mass Emergencies and Disasters, 16 (3): 279–302.

• Bakun, W. H.; Aagaard, B.; Dost, B.; Ellsworth, W. L.; Hardebeck, J. L.; Harris, R. A.; Ji, C.; Johnston, M. J. S.; Langbein, J.; Lienkaemper, J. J.; Michael, A. J.; Murray, J. R.; Nadeau, R. M.; Reasenberg, P. A.; Reichle, M. S.; Roeloffs, E. A.; Shakal, A.; Simpson, R. W.; Simpson, R. W.; Waldhauser, F. (13 October 2005), "Implications for prediction and hazard assessment from the 2004 Parkfield earthquake", Nature, 437 (7061): 969–974, Bibcode:2005Natur.437..969B, doi:10.1038/nature04067, PMID 16222291, S2CID 4389712.

• Bakun, W.H.; Breckenridge, K.S.; Bredehoeft, J.; Burford, R.O.; Ellsworth, W.L.; Johnston, M.J.S.; Jones, L.; Lindh, A.G.; Mortensen, C.; Mueller, R. J.; Poley, C. M.; Roeloffs, E.; Schulz, S.; Segall, P.; Thatcher, W. (1 May 1987), "Parkfield, California, Earthquake Prediction Scenarios and Response Plans" (PDF), U.S. Geological Survey, Open-File Report 87-192.

• Bakun, W. H.; Lindh, A. G. (16 August 1985), "The Parkfield, California, Earthquake Prediction Experiment", Science, 229 (4714): 619–624, Bibcode:1985Sci...229..619B, doi:10.1126/science.229.4714.619, PMID 17739363, S2CID 40899434.

• Bakun, W. H.; McEvilly, T. V. (28 September 1979), "Earthquakes near Parkfield, California: Comparing the 1934 and 1966 Sequences", Science, 205 (4413): 1375–1377, Bibcode:1979Sci...205.1375B, doi:10.1126/science.205.4413.1375, PMID 17732330, S2CID 28922627.

• Bernard, P. (10 November 1992), "Plausibility of long distance electrotelluric precursors to earthquakes", Journal of Geophysical Research, 97 (B12): 17531–17546, Bibcode:1992JGR....9717531B, doi:10.1029/92JB01215.

• Bernard, P.; LeMouel, J. L. (1996), "On electrotelluric signals", A critical review of VAN, London: Lighthill, S. J. World Scientific, pp. 118–154.

• Biagi, P. F.; Maggipinto, T.; Righetti, F.; Loiacono, D.; Schiavulli, L.; Ligonzo, T.; Ermini, A.; Moldovan, I. A.; Moldovan, A. S.; Buyuksarac, A.; Silva, H. G. (7 February 2011), "The European VLF/LF radio network to search for earthquake precursors: setting up and natural/man-made disturbances", Natural Hazards and Earth System Sciences, 11 (2): 333–341, doi:10.5194/nhess-11-333-2011, ISSN 1561-8633{{citation}}: CS1 maint: unflagged free DOI (link)

• Bolt, Bruce A. (1993), Earthquakes and geological discovery, Scientific American Library, ISBN 0-7167-5040-6.

• Bowman, D. D.; Quillon, G.; Sammis, C. G.; Sornette, A.; Sornette, D. (10 October 1998), "An observational test of the critical earthquake concept" (PDF), Journal of Geophysical Research, 103 (10): 24, 359–24, 372, arXiv:cond-mat/9803204, Bibcode:1998JGR...10324359B, doi:10.1029/98jb00792, S2CID 118922519.

• Brown, Roger; Kulik, James (1977), "Flashbulb memories", Cognition, 5 (1): 73–99, doi:10.1016/0010-0277(77)90018-X, S2CID 53195074.

• California Earthquake Prediction Evaluation Council (2 March 2004a), Report to the Director, Governor's Office of Emergency Services (PDF).

• California Earthquake Prediction Evaluation Council (9 December 2004b), Report to the Director, Governor's Office of Emergency Services.

• Campbell, W. H. (May 2009), "Natural magnetic disturbance fields, not precursors, preceding the Loma Prieta earthquake", Journal of Geophysical Research, 114 (A5): A05307, Bibcode:2009JGRA..114.5307C, doi:10.1029/2008JA013932, S2CID 18246478.

• Cartlidge, Edwin (3 June 2011), "Quake Experts to Be Tried For Manslaughter", Science, 332 (6034): 1135–1136, Bibcode:2011Sci...332.1135C, doi:10.1126/science.332.6034.1135, PMID 21636750.

• Cartlidge, Edwin (12 October 2012), "Aftershocks in the Courtroom", Science, 338 (6104): 184–188, Bibcode:2012Sci...338..184C, doi:10.1126/science.338.6104.184, PMID 23066054.

• Castellaro, S. (2003), "§2.4.3. The classical earthquake model", in Mulargia, Francesco; Geller, Robert J. (eds.), Earthquake science and seismic risk reduction, Dordrecht: Kluwer Academic Publishers, pp. 56–57, ISBN 9781402017780.

• Chouliaras, G.; Stavrakakis, G. (1999), "Support for VAN's earthquake predictions is based on false statements." (PDF), Eos Trans. AGU, 80 (19): 216, Bibcode:1999EOSTr..80..216C, doi:10.1029/99EO00166.

• Chouliaras, G. (2009), "Seismicity anomalies prior to 8 June 2008 earthquake in Western Greece", Nat. Hazards Earth Syst. Sci., 9: 327–335, doi:10.5194/nhess-9-327-2009{{citation}}: CS1 maint: unflagged free DOI (link).

• Cicerone, Robert D.; Ebel, John E.; Britton, James (25 October 2009), "A systematic compilation of earthquake precursors" (PDF), Tectonophysics, 476 (3–4): 371–396, Bibcode:2009Tectp.476..371C, doi:10.1016/j.tecto.2009.06.008.

• Cannavò, Flavio; Arena, Alessandra; Monaco, Carmelo (2015), "Local geodetic and seismic energy balance for shallow earthquake prediction", Journal of Seismology, 19 (1): 1–8, Bibcode:2015JSeis..19....1C, doi:10.1007/s10950-014-9446-z, S2CID 129258518.

• Console, R. (30 August 2001), "Testing earthquake forecast hypotheses", Tectonophysics, 338 (3–4): 261–268, Bibcode:2001Tectp.338..261C, doi:10.1016/S0040-1951(01)00081-6.

• Cowan, Hugh; Nicol, Andrew; Tonkin, Philip (10 March 1996), "A comparison of historical and paleoseismicity in a newly formed fault zone and a mature fault zone, North Canterbury, New Zealand", Journal of Geophysical Research, 101 (B3): 6021–6036, Bibcode:1996JGR...101.6021C, doi:10.1029/95JB01588, hdl:10182/3334.

• Davies, D. (27 November 1975), "Earthquake prediction in China", Nature, 258 (5533): 286–287, Bibcode:1975Natur.258..286D, doi:10.1038/258286a0, S2CID 4266855.

• Drakopoulos, J.; Stavrakakis, G.N.; Latoussakis, J. (30 August 1993), "Evaluation and interpretation of thirteen official van—telegrams for the period September 10, 1986 to April 28, 1988.", Tectonophysics, 224 (1–3): 223–236, Bibcode:1993Tectp.224..223D, doi:10.1016/0040-1951(93)90075-U.

• Dollar, John (5 April 2010), "The man who predicted an earthquake", The Guardian.

• Eftaxias, K.; Athanasopoulou, L.; Balasis, G.; Kalimeri, M.; Nikolopoulos, S.; Contoyiannis, Y.; Kopanas, J.; Antonopoulos, G.; Nomicos, C. (25 November 2009), "Unfolding the procedure of characterizing recorded ultra low frequency, kHZ and MHz electromagetic anomalies prior to the L'Aquila earthquake as pre-seismic ones – Part 1", Natural Hazards and Earth System Sciences, 9 (6): 1953–1971, doi:10.5194/nhess-9-1953-2009, ISSN 1561-8633{{citation}}: CS1 maint: unflagged free DOI (link)

• Eftaxias, K.; Balasis, G.; Contoyiannis, Y.; Papadimitriou, C.; Kalimeri, M.; Athanasopoulou, L.; Nikolopoulos, S.; Kopanas, J.; Antonopoulos, G.; Nomicos, C. (16 February 2010), "Unfolding the procedure of characterizing recorded ultra low frequency, kHZ and MHz electromagnetic anomalies prior to the L'Aquila earthquake as pre-seismic ones - Part 2", Natural Hazards and Earth System Sciences, 10 (2): 275–294, doi:10.5194/nhess-10-275-2010, ISSN 1561-8633, S2CID 73570989{{citation}}: CS1 maint: unflagged free DOI (link)

• Enriquez, Alberto (2015), "Earthquake-prediction technology deserves to be taken seriously (OPINION)", OregonLive.com, retrieved 19 November 2016.

• Evans, R. (December 1997), "Assessment of schemes for earthquake prediction: Editor's introduction", Geophysical Journal International, 131 (3): 413–420, Bibcode:1997GeoJI.131..413E, doi:10.1111/j.1365-246X.1997.tb06585.x{{citation}}: CS1 maint: unflagged free DOI (link).

• Filizzola, C.; Pergola, N.; Pietrapertosa, C.; Tramutoli, V. (1 January 2004), "Robust satellite techniques for seismically active areas monitoring: a sensitivity analysis on September 7, 1999 Athens's earthquake", Physics and Chemistry of the Earth, Parts A/B/C, Seismo Electromagnetics and Related Phenomena, 29 (4): 517–527, doi:10.1016/j.pce.2003.11.019, ISSN 1474-7065

• Evison, Frank (October 1999), "On the existence of earthquake precursors" (PDF), Annali di Geofisica, 42 (5): 763–770.

• Fraser-Smith, A. C.; Bernardi, A.; McGill, P. R.; Ladd, M. E.; Helliwell, R. A.; Villard, O. G., Jr. (August 1990), "Low-Frequency Magnetic Field Measurements Near the Epicenter of the Ms 7.1 Loma Prieta Earthquake", Geophysical Research Letters, 17 (9): 1465–1468, Bibcode:1990GeoRL..17.1465F, doi:10.1029/GL017i009p01465{{citation}}: CS1 maint: multiple names: authors list (link).\
• Freund, Friedemann (10 May 2000), "Time-resolved study of charge generation and propagation in igneous rocks", Journal of Geophysical Research: Solid Earth, 105 (B5): 11001–11019, Bibcode:2000JGR...10511001F, doi:10.1029/1999JB900423, ISSN 2156-2202.

• Freund, Friedemann T.; Takeuchi, Akihiro; Lau, Bobby W. S. (1 January 2006), "Electric currents streaming out of stressed igneous rocks – A step towards understanding pre-earthquake low frequency EM emissions", Physics and Chemistry of the Earth, Parts A/B/C, Recent Progress in Seismo Electromagnetics and Related Phenomena, 31 (4): 389–396, doi:10.1016/j.pce.2006.02.027, ISSN 1474-7065

• Freund, F.; Sornette, D. (20 February 2007), "Electro-magnetic earthquake bursts and critical rupture of peroxy bond networks in rocks", Tectonophysics, Mechanical and electromagnetic phenomena accompanying preseismic deformation: from laboratory to geophysical scale, 431 (1): 33–47, doi:10.1016/j.tecto.2006.05.032, ISSN 0040-1951, S2CID 45310425

• Freund, Friedemann T.; Kulahci, Ipek G.; Cyr, Gary; Ling, Julia; Winnick, Matthew; Tregloan-Reed, Jeremy; Freund, Minoru M. (1 December 2009), "Air ionization at rock surfaces and pre-earthquake signals", Journal of Atmospheric and Solar-Terrestrial Physics, 71 (17): 1824–1834, doi:10.1016/j.jastp.2009.07.013, ISSN 1364-6826

• Freund, Friedemann (1 October 2010), "Toward a unified solid state theory for pre-earthquake signals", Acta Geophysica, 58 (5): 719–766, doi:10.2478/s11600-009-0066-x, ISSN 1895-7455, S2CID 128744720

• Garwin, Laura (26 October 1989), "A successful prediction?", Nature, 341 (6244): 677, Bibcode:1989Natur.341..677G, doi:10.1038/341677a0, S2CID 658586.

• Geller, Robert J. (17 October 1991), "Unpredictable earthquakes [response to Hamada]", Nature, 353 (6345): 612, Bibcode:1991Natur.353..612G, doi:10.1038/353612a0, S2CID 5154447.

• Geller, R. J. (1996a), "Short-term earthquake prediction in Greece by seismic electric signals", in Lighthill, J. (ed.), A Critical Review of VAN, World Scientific, pp. 155–238

• Geller, R. J. (27 May 1996b), "Debate on evaluation of the VAN method: Editor's introduction", Geophysical Research Letters, 23 (11): 1291–1293, Bibcode:1996GeoRL..23.1291G, doi:10.1029/96GL00742.

• Geller, Robert J. (December 1997), "Earthquake prediction: a critical review." (PDF), Geophysical Journal International, 131 (3): 425–450, Bibcode:1997GeoJI.131..425G, doi:10.1111/j.1365-246X.1997.tb06588.x{{citation}}: CS1 maint: unflagged free DOI (link)

• Geller, Robert J.; Jackson, David D.; Kagan, Yan Y.; Mulargia, Francesco (14 March 1997), "Earthquakes Cannot Be Predicted" (PDF), Science, 275 (5306): 1616, doi:10.1126/science.275.5306.1616, S2CID 123516228.

• Geller, Robert J.; Jackson, David D.; Kagan, Yan Y.; Mulargia, Francesco; Stiros, Stathis (June 1998), "Letter" (PDF), Physics Today, 51 (6): 95–96, Bibcode:1998PhT....51f..15S, doi:10.1063/1.882266.

• Genzano, N.; Aliano, C.; Corrado, R.; Filizzola, C.; Lisi, M.; Mazzeo, G.; Paciello, R.; Pergola, N.; Tramutoli, V. (11 December 2009), "RST analysis of MSG-SEVIRI TIR radiances at the time of the Abruzzo 6 April 2009 earthquake", Natural Hazards and Earth System Sciences, 9 (6): 2073–2084, doi:10.5194/nhess-9-2073-2009, ISSN 1561-8633{{citation}}: CS1 maint: unflagged free DOI (link)

• Gersony, Robert, ed. (1982b), "Selected Available Documentation: The Brady Earthquake Predictions" (PDF), The Lima Disaster Preparedness Report, vol. XIII–B{{citation}}: CS1 maint: ref duplicates default (link).

• Giesecke, Albert A. (1983), "Case history of the Peru prediction for 1980–1981" (PDF), Proceedings of the Seminar on Earthquake Prediction Case Histories, Geneva, 12–15 October 1982: UNDPRO, pp. 51–74{{citation}}: CS1 maint: location (link).

• Gruszow, S.; Rossignol, J. C.; Tzanis, A.; Le Mouël, J. L. (1 August 1996), "Identification and analysis of electromagnetic signals in Greece: the case of the Kozani earthquake VAN prediction", Geophysical Research Letters, 23 (16): 2025–2028, Bibcode:1996GeoRL..23.2025G, doi:10.1029/96GL02170.

• Hall, Stephen S. (15 September 2011), "At Fault?" (PDF), Nature, 477 (7364): 264–269, Bibcode:2011Natur.477..264H, doi:10.1038/477264a, PMID 21921895, S2CID 205067216.

• Hamada, K. (17 October 1991), "Unpredictable earthquakes", Nature, 353 (6345): 611–612, Bibcode:1991Natur.353..611H, doi:10.1038/353611c0, S2CID 4239462.

• Hamada, Kazuo (30 August 1993), "Statistical evaluation of the SES predictions issued in Greece: alarm and success rates", Tectonophysics, 224 (1–3): 203–210, Bibcode:1993Tectp.224..203H, doi:10.1016/0040-1951(93)90073-S.

• Hamada, Kazuo (1996), "Re-examination of statistical evaluation of the SES prediction in Greece", in Sir James Lighthill (ed.), A Critical Review of VAN – Earthquake Prediction from Seismic Electrical Signals, London, UK: World Scientific Publishing Co Pte Ltd., pp. 286–291, ISBN 978-9810226701.

• Hamilton, Robert M. (1976), "The Status of Earthquake Prediction", U.S. Geological Survey, Circular 729: 6–9.

• Hammond, Allen L. (23 May 1973), "Earthquake predictions: Breakthrough in theoretical insight?", Science, 180 (4088): 851–853, Bibcode:1973Sci...180..851H, doi:10.1126/science.180.4088.851, PMID 17789254.

• Hammond, Allen L. (3 May 1974), "Dilatancy: Growing Acceptance as an Earthquake Mechanism", Science, 184 (4136): 551–552, Bibcode:1974Sci...184..551H, doi:10.1126/science.184.4136.551, PMID 17755025.

• Hammond, Allen L. (7 February 1975), "Earthquake Prediction: Progress in California, Hesitation in Washington", Science, 187 (4175): 419–420, Bibcode:1975Sci...187..419H, doi:10.1126/science.187.4175.419, PMID 17835300.

• Hammond, Allen L. (7 May 1976), "Earthquakes: An evacuation in China, a warning in California", Science, 192 (4239): 538–539, Bibcode:1976Sci...192..538H, doi:10.1126/science.192.4239.538, PMID 17745640.

• Hardebeck, Jeanne L.; Felzer, Karen R.; Michael, Andrew J. (August 2008), "Improved tests reveal that the accelerating moment release hypothesis is statistically insignificant" (PDF), Journal of Geophysical Research, 113 (B08130): 8310, Bibcode:2008JGRB..113.8310H, doi:10.1029/2007JB005410.

• Harris, Ruth A. (1998), The Loma Prieta, California, Earthquake of October 17, 1989—Forecasts (PDF), vol. Open-File Report 1550-B, U.S. Geological Survey.

• Harris, Ruth A.; Arrowsmith, J Ramon (September 2006), "Introduction to the Special Issue on the 2004 Parkfield Earthquake and the Parkfield Earthquake Prediction Experiment" (PDF), Bulletin of the Seismological Society of America, 96 (4B): S1–S5, Bibcode:2006BuSSA..96S...1H, doi:10.1785/0120050831.

• Hayakawa, Masashi (2015), Fundamentals of earthquake prediction, Singapore: John Wiley & Sons, ISBN 9781118770375.

• Heraud, J. A.; Centa, V. A.; Bleier, T. (1 December 2015), "Electromagnetic Precursors Leading to Triangulation of Future Earthquakes and Imaging of the Subduction Zone", AGU Fall Meeting Abstracts, 32: NH32B–03, Bibcode:2015AGUFMNH32B..03H.
• Hough, Susan Elizabeth; Langer, James S. (2007), "Richter's Scale: Measure of an Earthquake, Measure of a Man", Physics Today, 61 (1), Princeton University Press: 60–62, Bibcode:2008PhT....61a..60H, doi:10.1063/1.2835157, ISBN 978-0-691-12807-8.

• Hough, Susan Elizabeth (January–February 2010), "A seismological retrospective of the Brady-Spence prediction" (PDF), Seismological Research Letters, 81 (1): 113–117, doi:10.1785/gssrl.81.1.113{{citation}}: CS1 maint: ref duplicates default (link).

• Hough, Susan (2010b), Predicting the Unpredictable: The Tumultuous Science of Earthquake Prediction, Princeton University Press, ISBN 978-0-691-13816-9.

• Huang, Qinghua (27 January 2015), "Forecasting the epicenter of a future major earthquake", Proceedings of the National Academy of Sciences, 112 (4): 944–945, Bibcode:2015PNAS..112..944H, doi:10.1073/pnas.1423684112, ISSN 0027-8424, PMC 4313830, PMID 25583499.

• International Commission on Earthquake Forecasting for Civil Protection (2 October 2009), Operational Earthquake Forecasting: State of Knowledge and Guidelines for Utilization – Executive Summary (PDF).

• International Commission on Earthquake Forecasting for Civil Protection (30 May 2011), "Operational Earthquake Forecasting: State of Knowledge and Guidelines for Utilization", Annals of Geophysics, 54 (4): 315–391, doi:10.4401/ag-5350.

• Jackson, David D. (April 1996a), "Hypothesis testing and earthquake prediction", Proc. Natl. Acad. Sci. U.S.A., 93 (9): 3772–3775, Bibcode:1996PNAS...93.3772J, doi:10.1073/pnas.93.9.3772, PMC 39435, PMID 11607663{{citation}}: CS1 maint: ref duplicates default (link).

• Jackson, David D. (27 May 1996b), "Earthquake prediction evaluation standards applied to the VAN method", Geophysical Research Letters, 23 (11): 1363–1366, Bibcode:1996GeoRL..23.1363J, doi:10.1029/96gl01439{{citation}}: CS1 maint: ref duplicates default (link).

• Jackson, David D. (2004). "Earthquake Prediction and Forecasting". In Sparks, R. S. J.; Hawkesworth, C. J. (eds.). The State of the Planet: Frontiers and Challenges in Geophysics. Geophysical Monograph Series. Vol. 150. Washington DC: American Geophysical Union. pp. 335–348. Bibcode:2004GMS...150..335J. doi:10.1029/150GM26. ISBN 0-87590-415-7. {{cite book}}: |journal= ignored (help).

• Jackson, David D.; Kagan, Yan Y. (24 November 1998), "VAN method lacks validity" (PDF), Eos, 79 (47): 573–579, Bibcode:1998EOSTr..79..573J, doi:10.1029/98EO00418.

• Jackson, David D.; Kagan, Yan Y. (September 2006), "The 2004 Parkfield earthquake, the 1985 prediction, and characteristic earthquakes: Lessons for the future" (PDF), Bulletin of the Seismological Society of America, 96 (4B): S397–S409, Bibcode:2006BuSSA..96S.397J, doi:10.1785/0120050821.

• Johnston, M.J.S. (2002), "Electromagnetic Fields Generated by Earthquakes", in Lee, William H.K.; Kanamori, Hiroo; Jennings, Paul C.; Kisslinger, Carl (eds.), International Handbook of Earthquake and Engineering Seismology, vol. 81A, pp. 621–635, ISBN 0-12-440652-1

• Johnston, M. J. S.; Sasai, Y.; Egbert, G. D.; Mueller, R. J. (September 2006), "Seismomagnetic Effects from the Long-Awaited 28 September 2004 M 6.0 Parkf1eld Earthquake" (PDF), Bulletin of the Seismological Society of America, 96 (4B): S206–S220, Bibcode:2006BuSSA..96S.206J, doi:10.1785/0120050810.

• Jolliffe, Ian T.; Stephenson, David B., eds. (2003), Forecast Verification: A Practitioner's Guide in Atmospheric Science (1st ed.), John Wiley & Sons, Ltd., ISBN 0-471-49759-2.

• Jones, Lucille M. (December 1985), "Foreshocks and time-dependent earthquake hazard assessment in southern California", Bulletin of the Seismological Society of America, 75 (6): 1669–1679.

• Jordan, Thomas H.; Jones, Lucile M. (July–August 2010), "Operational Earthquake Forecasting: Some thoughts on why and how" (PDF), Seismological Research Letters, 81 (4): 571–574, doi:10.1785/gssrl.81.4.571.

• Kagan, Y. Y. (27 May 1996), "VAN earthquake predictions — an attempt at statistical evaluation" (PDF), Geophysical Research Letters, 23 (11): 1315–1318, Bibcode:1996GeoRL..23.1315K, doi:10.1029/95gl03417

• Kagan, Yan Y. (15 March 1997), "Statistical aspects of Parkfield earthquake sequence and Parkfield prediction experiment" (PDF), Tectonophysics, 270 (3–4): 207–219, Bibcode:1997Tectp.270..207K, doi:10.1016/S0040-1951(96)00210-7.

• Kagan, Yan Y. (December 1997b), "Are earthquakes predictable?" (PDF), Geophysical Journal International, 131 (3): 505–525, Bibcode:1997GeoJI.131..505K, doi:10.1111/j.1365-246X.1997.tb06595.x{{citation}}: CS1 maint: unflagged free DOI (link).

• Kagan, Yan Y. (August 1999), "Is Earthquake Seismology a Hard, Quantitative Science?" (PDF), Pure and Applied Geophysics, 155 (2–4): 233–258, Bibcode:1999PApGe.155..233K, doi:10.1007/s000240050264, S2CID 6619331.

• Kagan, Yan Y.; Jackson, David D. (10 December 1991), "Seismic Gap Hypothesis: Ten Years After" (PDF), Journal of Geophysical Research, 96 (B13): 21, 419–21, 431, Bibcode:1991JGR....9621419K, doi:10.1029/91jb02210.

• Kagan, Yan Y.; Jackson, David D. (27 May 1996), "Statistical tests of VAN earthquake predictions: comments and reflections" (PDF), Geophysical Research Letters, 23 (11): 1433–1436, Bibcode:1996GeoRL..23.1433K, doi:10.1029/95GL03786.

• Kagan, Yan Y.; Jackson, David d.; Geller, Robert J. (November–December 2012), "Characteristic earthquake model, 1884 – 2011, R.I.P", Seismological Research Letters, 83 (6): 951–953, arXiv:1207.4836, Bibcode:2012arXiv1207.4836K, doi:10.1785/0220120107, S2CID 88513151.

• Kagan, Yan Y.; Knopoff, Leon (19 June 1987), "Statistical Short-Term Earthquake Prediction", Science, 236 (4808): 1563–1567, Bibcode:1987Sci...236.1563K, doi:10.1126/science.236.4808.1563, PMID 17835741, S2CID 12946111.

• Kanamori, Hiroo (2003), "Earthquake Prediction: An Overview", International Handbook of Earthquake and Engineering Seismology, International Geophysics, 616: 1205–1216, doi:10.1016/s0074-6142(03)80186-9, ISBN 0-12-440658-0.

• Kanamori, Hiroo; Stewart, Gordon S. (10 July 1978), "Seismological Aspects of the Guatemala Earthquake of February 4, 1976" (PDF), Journal of Geophysical Research, 83 (B7): 3427–3434, Bibcode:1978JGR....83.3427K, doi:10.1029/JB083iB07p03427.

• Kappler, K. N.; Morrison, H. Frank; Egbert, G. D. (April 2010), "Long((en))term monitoring of ULF electromagnetic fields at Parkfield, California" (PDF), Journal of Geophysical Research, 115 (B4): B04406, Bibcode:2010JGRB..115.4406K, doi:10.1029/2009JB006421.

• Kerr, Richard A. (28 April 1978), "Earthquakes: Prediction Proving Elusive", Science, 200 (4340): 419–421, Bibcode:1978Sci...200..419K, doi:10.1126/science.200.4340.419, PMID 17757294.

• Kerr, Richard A. (2 November 1979), "Prospects for Earthquake Prediction Wane", Science, 206 (4418): 542–544, Bibcode:1979Sci...206..542K, doi:10.1126/science.206.4418.542, PMID 17759414.

• Kerr, Richard A. (20 February 1981), "Prediction of huge Peruvian quakes quashed", Science, 211 (4484): 808–809, Bibcode:1981Sci...211..808K, doi:10.1126/science.211.4484.808, PMID 17740381.

• Kerr, Richard A. (18 December 1981c), "Palmdale Bulge Doubts Now Taken Seriously", Science, 214 (4527): 1331–33, Bibcode:1981Sci...214.1331K, doi:10.1126/science.214.4527.1331, PMID 17812251.

• Kerr, Richard A. (6 January 1984), "Stalking the Next Parkfield Earthquake", Science, 223 (4631): 36–38, Bibcode:1984Sci...223...36K, doi:10.1126/science.223.4631.36, PMID 17752978.

• Kerr, Richard A. (27 October 1989), "Reading the Future in Loma Prieta", Science, 246 (4929): 436–439, Bibcode:1989Sci...246..436K, doi:10.1126/science.246.4929.436, PMID 17788681.

• Kerr, Richard A. (8 October 2004), "Parkfield Keeps Secrets After A Long-Awaited Quake", Science, 306 (5694): 206–7, doi:10.1126/science.306.5694.206, PMID 15472043, S2CID 32455927.

• Kerr, Richard A. (17 April 2009), "After the Quake, in Search of the Science—or Even a Good Prediction", Science, 324 (5925): 322, Bibcode:2009Sci...324..322K, doi:10.1126/science.324.5925.322, PMID 19372400, S2CID 206585897.

• Lighthill, Sir James, ed. (1996), A Critical Review of VAN – Earthquake Prediction from Seismic Electrical Signals, London: World Scientific Publishing Co Pte Ltd., ISBN 978-981-02-2670-1.

• Lighton, John R.B.; Duncan, Frances D. (15 August 2005), "Shaken, not stirred: a serendipitous study of ants and earthquakes", Journal of Experimental Biology, 208 (16): 3103–3107, doi:10.1242/jeb.01735, PMID 16081608, S2CID 2487051.

• Lindberg, Robert G.; Skiles, Durward; Hayden, Page (1981), "Can animals predict earthquakes? A search for correlations between changes in activity patterns of two fossorial rodents and subsequent seismic events" (PDF), U.S. Geological Survey, Open-File Report 81-385.

• Lindh, A.G.; Lockner, D.A.; Lee, W.H.K. (June 1978), "Velocity anomalies: An alternative explanation" (PDF), Bulletin of the Seismological Society of America, 68 (3): 721–734.

• Lisi, M.; Filizzola, C.; Genzano, N.; Grimaldi, C. S. L.; Lacava, T.; Marchese, F.; Mazzeo, G.; Pergola, N.; Tramutoli, V. (26 February 2010), "A study on the Abruzzo 6 April 2009 earthquake by applying the RST approach to 15 years of AVHRR TIR observations", Natural Hazards and Earth System Sciences, 10 (2): 395–406, doi:10.5194/nhess-10-395-2010, ISSN 1561-8633{{citation}}: CS1 maint: unflagged free DOI (link)

• Lomnitz, Cinna (1994), Fundamentals of earthquake prediction, New York: John Wiley & Sons, ISBN 0-471-57419-8, OCLC 647404423.

• Lomnitz, Cinna; Nava, F. Alejandro (December 1983), "The predictive value of seismic gaps.", Bulletin of the Seismological Society of America, 73 (6A): 1815–1824.

• Lott, Dale F.; Hart, Benjamin L.; Verosub, Kenneth L.; Howell, Mary W. (September 1979), "Is Unusual Animal Behavior Observed Before Earthquakes? Yes and No", Geophysical Research Letters, 6 (9): 685–687, Bibcode:1979GeoRL...6..685L, doi:10.1029/GL006i009p00685.

• Lott, Dale F.; Hart, Benjamin L.; Howell, Mary W. (December 1981), "Retrospective Studies of Unusual Animal Behavior as an Earthquake Predictor", Geophysical Research Letters, 8 (12): 1203–1206, Bibcode:1981GeoRL...8.1203L, doi:10.1029/GL008i012p01203.

• Ludwin, Ruth (May 2001), "Earthquake Prediction" (PDF), Washington Geology, 28 (3): 27–28.

• Luen, Brad; Stark, Philip B. (2008), "Testing earthquake predictions", Institute of Mathematical Statistics collections: Probability and Statistics: Essays in Honor of David A. Freedman, vol. 2, pp. 302–315, arXiv:0805.3032, Bibcode:2008pseh.book..302L, doi:10.1214/193940307000000509, ISBN 978-0-94060074-4, S2CID 12016809.

• Mabey, Matthew A. (May 2001), "The Charlatan Game" (PDF), Washington Geology, 28 (3): 27–28. Also at USGS.

• Main, Ian [moderator] (February 1999), Is the reliable prediction of individual earthquakes a realistic scientific goal?, Nature{{citation}}: CS1 maint: extra punctuation (link) CS1 maint: multiple names: authors list (link) CS1 maint: numeric names: authors list (link).

• Main, Ian G.; Bell, Andrew F.; Meredith, Philip G.; Geiger, Sebastian; Touati, Sarah (August 2012), "The dilatancy–diffusion hypothesis and earthquake predictability", Geological Society of London, Special Publications, 367 (1): 215–230, Bibcode:2012GSLSP.367..215M, doi:10.1144/SP367.15, S2CID 73524237.

• Mason, Ian (2003), Binary Events. Chap. 3 in Jolliffe & Stephenson 2003.

• Matthews, Robert A. J. (December 1997), "Decision-theoretic limits on earthquake prediction", Geophysical Journal International, 131 (3): 526–529, Bibcode:1997GeoJI.131..526M, doi:10.1111/j.1365-246X.1997.tb06596.x{{citation}}: CS1 maint: unflagged free DOI (link).

• McCann, W. R.; Nishenko, S. P.; Sykes, L. R.; Krause, J. (1979), "Seismic gaps and plate tectonics: Seismic potential for major boundaries", Pure and Applied Geophysics, 117 (6): 1082–1147, Bibcode:1979PApGe.117.1082M, doi:10.1007/BF00876211, S2CID 129377355.

• McEvilly, T.V.; Johnson, L.R. (April 1974), "Stability of P an S velocities from Central California quarry blasts", Bulletin of the Seismological Society of America, 64 (2): 343–353, doi:10.1785/BSSA0640020343, S2CID 130963434.

• McIntyre, Jamie (April–May 2009), "When Outrage Trumps Science: Italian quake prediction produces tabloid tremors", American Journalism Review{{citation}}: CS1 maint: ref duplicates default (link).

• McNally, Karen (November–December 1979), "Trapping an Earthquake" (PDF), Engineering & Science, pp. 7–12{{citation}}: CS1 maint: ref duplicates default (link).

• Mignan, Arnaud (June 2011), "Retrospective on the Accelerating Seismic Release (ASR) hypothesis: controversy and new horizons", Tectonophysics, 505 (1–4): 1–16, Bibcode:2011Tectp.505....1M, doi:10.1016/j.tecto.2011.03.010.

• Mignan, Arnaud (14 February 2013), "The debate on the prognostic value of earthquake foreshocks: A meta-analysis", Scientific Reports, 4: 4099, Bibcode:2014NatSR...4E4099M, doi:10.1038/srep04099, PMC 3924212, PMID 24526224.

• Mileti, Dennis; Sorensen, John (1990), Communication of Emergency Public Warnings, National Technical Information Service, doi:10.2172/6137387, retrieved 20 September 2016.

• Miller, Sunlen; Patrick, Maggy; Capatides, Christina (24 August 2011), Sixth Sense? Zoo Animals Sensed Quake Early, ABC News.

• Mulargia, Francesco; Gasperini, Paolo (1992), "Evaluating the statistical validity beyond chance of 'VAN' earthquake precursors" (PDF), Geophysical Journal International, 111 (1): 32–44, Bibcode:1992GeoJI.111...32M, doi:10.1111/j.1365-246X.1992.tb00552.x{{citation}}: CS1 maint: unflagged free DOI (link).

• Mulargia, Francesco; Gasperini, Paolo (27 May 1996a), "Precursor candidacy and validation: The VAN case so far" (PDF), Geophysical Research Letters, 23 (11): 1323–1326, Bibcode:1996GeoRL..23.1323M, doi:10.1029/95GL03456.

• Mulargia, Francesco; Gasperini, Paolo (27 May 1996b), "VAN: Candidacy and validation with the latest laws of the game" (PDF), Geophysical Research Letters, 23 (11): 1327–1330, Bibcode:1996GeoRL..23.1327M, doi:10.1029/95gl03455.

• Ohshansky, R.B.; Geller, R.J. (2003), "Earthquake prediction and public policy", in Mulargia, Francesgo; Geller, Robert J. (eds.), Earthquake Science and Seismic Risk Reduction., NATO Science Series, IV Earth and Environmental Sciences, vol. 32, Kluwer, pp. 284–329, doi:10.1007/978-94-010-0041-3_8, ISBN 978-94-010-0041-3.

• Otis, Leon; Kautz, William (1979), "Biological premonitions of earthquakes: a validation study", U.S. Geological Survey, Open-File Report 80-453: 225–226.

• Panel on Earthquake Prediction of the Committee on Seismology [C.R Allen, chairman] (July 1976), Predicting Earthquakes: A Scientific and Technical Evaluation – with Implications for Society, Washington, D.C.: National Academy Sciences, ISBN 9780309025270{{citation}}: CS1 maint: extra punctuation (link) CS1 maint: multiple names: authors list (link) CS1 maint: numeric names: authors list (link).

• Papadopoulos, Gerassimos A. (4 May 2010), "Comment on "The Prediction of Two Large Earthquakes in Greece"", Eos, 91 (18): 162, Bibcode:2010EOSTr..91..162P, doi:10.1029/2010EO180003.

• Papadopoulos, Gerassimos A. (2015), "Communicating to the General Public Earthquake Prediction Information: Lessons Learned in Greece, Chap. 19", in Wyss, Max; Peppoloni, Silvia (eds.), Geoethics: Ethical Challenges and Case Studies in Earth Sciences, pp. 223–242, ISBN 978-0-12-799935-7.

• Park, S. (July 1996), "Precursors to earthquakes: seismoelectromagnetic signals" (PDF), Surveys in Geophysics, 17 (4): 493–516, Bibcode:1996SGeo...17..493P, doi:10.1007/BF01901642, S2CID 55247676.

• Park, Stephen K.; Dalrymple, William; Larsen, Jimmy C. (2007), "The 2004 Parkfield earthquake: Test of the electromagnetic precursor hypothesis", Journal of Geophysical Research, 112 (B5): B05302, Bibcode:2007JGRB..112.5302P, doi:10.1029/2005JB004196.

• Pergola, N.; Aliano, C.; Coviello, I.; Filizzola, C.; Genzano, N.; Lacava, T.; Lisi, M.; Mazzeo, G.; Tramutoli, V. (11 February 2010), "Using RST approach and EOS-MODIS radiances for monitoring seismically active regions: a study on the 6 April 2009 Abruzzo earthquake", Natural Hazards and Earth System Sciences, 10 (2): 239–249, doi:10.5194/nhess-10-239-2010, ISSN 1561-8633{{citation}}: CS1 maint: unflagged free DOI (link)

• Pham, V. N.; Boyer, D.; Chouliaras, G.; Le Mouël, J. L.; Rossignol, J. C.; Stavrakakis, G. N. (15 June 1998), "Characteristics of electromagnetic noise in the Ioannina region (Greece); a possible origin for so called "Seismic Electric Signals" (SES)" (PDF), Geophysical Research Letters, 25 (12): 2229–2232, Bibcode:1998GeoRL..25.2229P, doi:10.1029/98gl01593, S2CID 129231700.

• Pham, V. N.; Boyer, D.; Chouliaras, G.; Savvaidis, A.; Stavrakakis, G. N.; Le Mouël, J. L. (2002), "Sources of anomalous transient electric signals (ATESs) in the ULF band in the Lamia region (central Greece): electrochemical mechanisms for their generation", Physics of the Earth and Planetary Interiors, 130 (3–4): 209–233, Bibcode:2002PEPI..130..209P, doi:10.1016/s0031-9201(02)00008-0.

• Pham, V. N.; Boyer, D.; Le Mouël, J. L.; Chouliaras, G.; Stavrakakis, G. N. (1999), "Electromagnetic signals generated in the solid Earth by digital transmission of radio-waves as a plausible source for some so-called 'seismic electric signals'" (PDF), Physics of the Earth and Planetary Interiors, 114 (3–4): 141–163, Bibcode:1999PEPI..114..141P, doi:10.1016/s0031-9201(99)00050-3.

• Raleigh, C. B.; Bennett, G.; Craig, H.; Hanks, T.; Molnar, P.; Nur, A.; Savage, J.; Scholz, C.; Turner, R.; Wu, F. (May 1977), "Prediction of the Haicheng Earthquake", Eos, Transactions, American Geophysical Union, 58 (5): 236–272, Bibcode:1977EOSTr..58..236., doi:10.1029/EO058i005p00236. By the Haicheng Earthquake Study Delegation.

• Reid, Harry Fielding (1910), "The Mechanics of the Earthquake.", The California Earthquake of April 18, 1906: Report of the State Earthquake Investigation Commission, vol. Vol. 2, Washington, D. C., Carnegie institution of Washington {{citation}}: |volume= has extra text (help).

• Rhoades, D.A.; Evison, F.F. (27 May 1996), "The VAN earthquake predictions", Geophysical Research Letters, 23 (11): 1371–1373, Bibcode:1996GeoRL..23.1371R, doi:10.1029/95GL02792.

• Rikitake, Tsuneji (1 May 1979), "Classification of earthquake precursors", Tectonophysics, 54 (3–4): 293–309, Bibcode:1979Tectp..54..293R, doi:10.1016/0040-1951(79)90372-X.

• Rikitake, Tsuneji (1982), Earthquake Forecasting and Warning, Tokyo: Center for Academic Publications.

• Roberts, J.L. (1983), "Notes on procedure for conveying earthquake forecasts with special reference to the Peru predictions for 1980–1981" (PDF), Proceedings of the Seminar on Earthquake Prediction Case Histories, Geneva, 12–15 October 1982: UNDPRO{{citation}}: CS1 maint: location (link).

• Roeloffs, Evelyn; Langbein, John (August 1994), "The earthquake prediction experiment at Parkfield California", Reviews of Geophysics, 32 (3): 315–336, Bibcode:1994RvGeo..32..315R, doi:10.1029/94RG01114.

• Rong, Yufang; Jackson, David D.; Kagan, Yan Y. (October 2003), "Seismic gaps and earthquakes" (PDF), Journal of Geophysical Research, 108 (B10): 2471, Bibcode:2003JGRB..108.2471R, doi:10.1029/2002JB002334.

• Rozhnoi, A.; Solovieva, M.; Molchanov, O.; Schwingenschuh, K.; Boudjada, M.; Biagi, P. F.; Maggipinto, T.; Castellana, L.; Ermini, A.; Hayakawa, M. (21 October 2009), "Anomalies in VLF radio signals prior the Abruzzo earthquake (M=6.3) on 6 April 2009", Natural Hazards and Earth System Sciences, 9 (5): 1727–1732, doi:10.5194/nhess-9-1727-2009, ISSN 1561-8633{{citation}}: CS1 maint: unflagged free DOI (link)

• Rundle, John B.; Holliday, James R.; Graves, William R.; Turcotte, Donald L.; Tiampo, Kristy F.; Klein, William (2012), "Probabilities for large events in driven threshold systems", Physical Review E, 86 (2): 021106, Bibcode:2012PhRvE..86b1106R, doi:10.1103/PhysRevE.86.021106, PMID 23005722, S2CID 17100504.

• Saegusa, A. (28 January 1999), "China clamps down on inaccurate warnings", Nature, 397 (6717): 284, Bibcode:1999Natur.397..284W, doi:10.1038/16756, PMID 9950418, S2CID 4314191.

• Sarlis, Nicholas V. (2013), "On the recent seismic activity in North-Eastern Aegean Sea including the M_w5.8 earthquake on 8 January 2013", Proceedings of the Japan Academy, Series B, 89 (9): 438–445, doi:10.2183/pjab.89.438, PMC 3865358, PMID 24213207.

• Sarlis, N.; Lazaridou, M.; Kapiris, P.; Varotsos, P. (1 November 1999), "Numerical model of the selectivity effect and the ΔV/L criterion", Geophysical Research Letters, 26 (21): 3245–3248, Bibcode:1999GeoRL..26.3245S, doi:10.1029/1998GL005265, ISSN 1944-8007, S2CID 122576026.

• Sarlis, N. V.; Skordas, E. S.; Christopoulos, S.-R. G.; Varotsos, P. A. (January 2016), "Statistical Significance of Minimum of the Order Parameter Fluctuations of Seismicity Before Major Earthquakes in Japan", Pure and Applied Geophysics, 173 (1): 165–172, Bibcode:2016PApGe.173..165S, doi:10.1007/s00024-014-0930-8, ISSN 0033-4553, S2CID 129004948.

• Sarlis, Nicholas V. (2018), "Statistical Significance of Earth's Electric and Magnetic Field Variations Preceding Earthquakes in Greece and Japan Revisited", Entropy, 20 (8): 561, Bibcode:2018Entrp..20..561S, doi:10.3390/e20080561, PMC 7513084, PMID 33265650

• Schaal, Rand B. (February 1988), "An evaluation of the animal-behavior theory for earthquake predictions" (PDF), California Geology, 41 (2): 41–45.

• Scholz, Christopher H. (2002), The Mechanics of earthquakes and faulting (2nd ed.), Cambridge Univ. Press, ISBN 0-521-65223-5.

• Scholz, Christopher H.; Sykes, Lynn R.; Aggarwal, Yah P. (31 August 1973), "Earthquake Prediction: A Physical Basis", Science, 181 (4102): 803–810, Bibcode:1973Sci...181..803S, doi:10.1126/science.181.4102.803, PMID 17816227.

• Schwartz, David P.; Coppersmith, Kevin J. (10 July 1984), "Fault Behavior and Characteristic Earthquakes: Examples From the Wasatch and San Andreas Fault Zones", Journal of Geophysical Research, 89 (B7): 5681–5698, Bibcode:1984JGR....89.5681S, doi:10.1029/JB089iB07p05681.

• Shnirman, M.; Schreider, S.; Dmitrieva, O. (1993), "Statistical evaluation of the VAN predictions issued during the period 1987–1989." (PDF), Tectonophysics, 224 (1–3): 211–221, Bibcode:1993Tectp.224..211S, doi:10.1016/0040-1951(93)90074-t.

• Sibson, R. H. (1986), "Earthquakes and Lineament Infrastructure", Philosophical Transactions of the Royal Society A, 317 (1539): 63–79, Bibcode:1986RSPTA.317...63S, doi:10.1098/rsta.1986.0025, S2CID 122934024.

• Skordas, E. S.; Christopoulos, S.-R. G.; Sarlis, N. V. (2 January 2020), "Detrended fluctuation analysis of seismicity and order parameter fluctuations before the M7.1 Ridgecrest earthquake" (PDF), Natural Hazards (2): 697–711, doi:10.1007/s11069-019-03834-7, S2CID 209542427.

• Spence, William; Herrmann, Robert B.; Johnston, Arch C.; Reagor, Glen (1993), "Responses to Iben Browning's Prediction of a 1990 New Madrid, Missouri, Earthquake" (PDF), U.S. Geological Survey, Circular 1083.

• Squires, Nick; Rayne, Gordon (6 April 2009), "Italian earthquake: expert's warnings were dismissed as scaremongering", The Telegraph.

• Stark, Philip B. (1997), "Earthquake prediction: the null hypothesis", Geophysical Journal International, 131 (3): 495–499, Bibcode:1997GeoJI.131..495S, CiteSeerX 10.1.1.36.7867, doi:10.1111/j.1365-246X.1997.tb06593.x{{citation}}: CS1 maint: unflagged free DOI (link).

• Stavrakakis, George N.; Drakopoulos, John (27 May 1996), "The VAN method: Contradictory and misleading results since 1981", Geophysical Research Letters, 23 (11): 1347–1350, Bibcode:1996GeoRL..23.1347S, doi:10.1029/95gl03546.

• Stein, Seth; Friedrich, Anke; Newman, Andrew (July–August 2005), "Dependence of possible characteristic earthquakes on spatial sampling: illustration for the Wasatch seismic zone, Utah" (PDF), Seismological Research Letters, 76 (4): 432–436, doi:10.1785/gssrl.76.4.432.

• Stein, Seth; Newman, Andrew (March–April 2004), "Characteristic and uncharacteristic earthquakes as possible artifacts: application to the New Madrid and Wabash seismic zones" (PDF), Seismological Research Letters, 75 (2): 173–187, doi:10.1785/gssrl.75.2.173.

• Stiros, Stathis C. (December 1997), "Costs and benefits of earthquake prediction studies in Greece" (PDF), Geophysical Journal International, 131 (3): 478–484, Bibcode:1997GeoJI.131..478S, doi:10.1111/j.1365-246x.1997.tb06591.x.

• Sykes, Lynn R.; Shaw, Bruce E.; Scholz, Christopher H. (1999), "Rethinking Earthquake Prediction" (PDF), Pure and Applied Geophysics, 155 (2–4): 207–232, Bibcode:1999PApGe.155..207S, doi:10.1007/s000240050263, S2CID 11412679.

• Thomas, J. N.; Love, J. J.; Johnston, M. J. S. (2009), "On the reported magnetic precursor of the 1989 Loma Prieta earthquake", Physics of the Earth and Planetary Interiors, 173 (3–4): 207–215, Bibcode:2009PEPI..173..207T, doi:10.1016/j.pepi.2008.11.014.

• Thomas, Lee M. (1983), "Economic impacts of earthquake prediction" (PDF), Proceedings of the Seminar on Earthquake Prediction Case Histories, Geneva, 12–15 October 1982: UNDPRO, pp. 179–185{{citation}}: CS1 maint: location (link).

• Tiampo, Kristy F.; Shcherbakov, Robert (2012), "Seismicity-based earthquake forecasting techniques: Ten years of progress" (PDF), Tectonophysics, 522–523: 89–121, Bibcode:2012Tectp.522...89T, doi:10.1016/j.tecto.2011.08.019.

• Tierney, Kathleen J. (1993), "Making sense of collective preoccupations: lessons from research on the Iben Browning earthquake prediction." (PDF), in Platt, Gerald M.; Gordon, Chad (eds.), Self, Collective Behavior, and Society: Essays Honoring the Contributions of Ralph H. Turner, JAI Press, ISBN 978-155938755-2.

• Tsolis, G. S.; Xenos, T. D. (22 January 2010), "A qualitative study of the seismo-ionospheric precursors prior to the 6 April 2009 earthquake in L'Aquila, Italy", Natural Hazards and Earth System Sciences, 10 (1): 133–137, doi:10.5194/nhess-10-133-2010, ISSN 1561-8633{{citation}}: CS1 maint: unflagged free DOI (link)

• Turner, Ralph H. (November 1993), "Reflections on the Past and Future of Social Research on Earthquake Warnings", International Journal of Mass Emergencies and Disasters, 11 (3): 454–468.

• U.S. Geological Survey (1976), "Earth Prediction — Opportunity to Avert Disaster; A conference on earthquake warning and response held in San Francisco, California, on November 7, 1975." (PDF), U.S. Geological Survey, Circular 729: 6–9. (Sometimes attributed to McKelvey, who wrote the Forward.)

• U.S. Geological Survey Staff (19 January 1990), "The Loma Prieta, California, earthquake: an anticipated event", Science, 247 (4940): 286–293, Bibcode:1990Sci...247..286G, doi:10.1126/science.247.4940.286, PMID 17735847.

• Uyeda, Seiya; Nagao, Toshiyasu; Kamogawa, Masashi (29 May 2009), "Short-term earthquake prediction: Current status of seismo-electromagnetics", Tectonophysics, 470 (3–4): 205–213, Bibcode:2009Tectp.470..205U, doi:10.1016/j.tecto.2008.07.019.

• Uyeda, Seiya; Kamogawa, Masashi (23 September 2008), "The Prediction of Two Large Earthquakes in Greece", Eos, Transactions American Geophysical Union, 89 (39): 363, Bibcode:2008EOSTr..89..363U, doi:10.1029/2008EO390002, ISSN 2324-9250.

• Uyeda, S. (1996), "Introduction to the VAN method of earthquake prediction", in Sir James Lighthill (ed.), A Critical Review of VAN – Earthquake Prediction from Seismic Electrical Signals, London, UK: World Scientific Publishing Co Pte Ltd., ISBN 978-981-02-2670-1.

• Uyeda, Seiya (24 November 1998), "VAN Method of Short-term Earthquake Prediction Shows Promise", Eos, 79 (47): 573–580, Bibcode:1998EOSTr..79..573U, doi:10.1029/98EO00417.

• Uyeda, Seiya (4 January 2000), "In Defense of VAN's Earthquake Predictions", Forum, Eos, 81 (1): 3–6, Bibcode:2000EOSTr..81....3U, doi:10.1029/00EO00005.

• Varotsos, P.; Alexopoulos, K.; Nomicos, K. (1981), "Seven-hour precursors to earthquakes determined from telluric currents", Praktika of the Academy of Athens, 56: 417–433.

• Varotsos, P.; Alexopoulos, K. (December 1984a), "Physical properties of the variations of the electric field of the earth preceding earthquakes, I" (PDF), Tectonophysics, 110 (1): 73–98, Bibcode:1984Tectp.110...73V, doi:10.1016/0040-1951(84)90059-3.

• Varotsos, P.; Alexopoulos, K. (December 1984b), "Physical properties of the variations of the electric field of the earth preceding earthquakes. II. determination of epicenter and magnitude" (PDF), Tectonophysics, 110 (1): 99–125, Bibcode:1984Tectp.110...99V, doi:10.1016/0040-1951(84)90060-X.

• Varotsos, P.; Alexopoulos, K.; Lazaridou, M. (August 1993), "Latest aspects of earthquake prediction in Greece based on seismic electric signals, II", Tectonophysics, 224 (1): 1–37, Bibcode:1993Tectp.224....1V, doi:10.1016/0040-1951(93)90055-O.

• Varotsos, P.; Eftaxias, K.; Lazaridou, M. (27 May 1996), "Reply I to "VAN: Candidacy and validation with the latest laws of the game" and "Precursor candidacy and validation: The VAN Case so far"", Geophysical Research Letters, 23 (11): 1331–1334, Bibcode:1996GeoRL..23.1331V, doi:10.1029/96GL01436, ISSN 1944-8007.

• Varotsos, P.; Lazaridou, M. (1991), "Latest aspects of earthquake prediction in Greece based on seismic electric signals", Tectonophysics, 188 (3–4): 321–347, Bibcode:1991Tectp.188..321V, doi:10.1016/0040-1951(91)90462-2.

• Varotsos, P.; Lazaridou, M.; Eftaxias, K.; Antonopoulos, G.; Makris, J.; Kopanas, J. (1996a), "Short-term earthquake prediction in Greece by seismic electric signals", in Lighthill, J. (ed.), A Critical Review of VAN, World Scientific, pp. 29–76.

• Varotsos, P.; Lazaridou, M. (27 May 1996b), "Reply to "The VAN earthquake predictions," by D. A. Rhoades and F. F. Evison", Geophysical Research Letters, 23 (11): 1375–1378, Bibcode:1996GeoRL..23.1375V, doi:10.1029/96GL00910, ISSN 1944-8007.

• Varotsos, P.; Lazaridou, M.; Hadjicontis, V. (27 May 1996), "Reply to "Earthquake prediction evaluation standards applied to the VAN Method"", Geophysical Research Letters, 23 (11): 1367–1370, Bibcode:1996GeoRL..23.1367V, doi:10.1029/96GL00916, ISSN 1944-8007.

• Varotsos, P.; Alexopoulos, K.; Nomicos, K.; Lazaridou, M. (1986), "Earthquake prediction and electric signals", Nature, 322 (6075): 120, Bibcode:1986Natur.322..120V, doi:10.1038/322120a0, S2CID 4304127.

• Varotsos, P.; Alexopoulos, K.; Nomicos, K.; Lazaridou, M. (20 September 1988), "Official earthquake prediction procedure in Greece", Tectonophysics, 152 (3–4): 93–196, Bibcode:1988Tectp.152..193V, doi:10.1016/0040-1951(88)90045-5.

• Varotsos, P.; Sarlis, N.; Lazaridou, M.; Kapiris, P. (1998), "Transmission of stress induced electric signals", Journal of Applied Physics, 83 (1): 60–70, Bibcode:1998JAP....83...60V, doi:10.1063/1.366702.

• Varotsos, P. A.; Sarlis, N. V.; Skordas, E. S. (22 November 2001), "Spatio-temporal complexity aspects on the interrelation between seismic electric signals and seismicity" (PDF), Praktika of the Academy of Athens, vol. 76, pp. 294–321.

• Varotsos, P. A.; Sarlis, N. V.; Skordas, E. S. (2003a), "Long-range correlations in the electric signals that precede rupture: Further investigations" (PDF), Physical Review E, 67 (2): 021109, Bibcode:2003PhRvE..67b1109V, doi:10.1103/PhysRevE.67.021109, PMID 12636655.

• Varotsos, P. A.; Sarlis, N. V.; Skordas, E. S. (23 September 2003b), "Attempt to distinguish electric signals of a dichotomous nature" (PDF), Physical Review E, 68 (3): 031106, Bibcode:2003PhRvE..68c1106V, doi:10.1103/PhysRevE.68.031106, PMID 14524749.

• Varotsos, P.; Sarlis, N.; Skordas, E. (2011), Natural time analysis: the new view of time; Precursory seismic electric signals, earthquakes and other complex time series, Springer Praxis, ISBN 978-364216448-4.

• Varotsos, P. A.; Sarlis, N. V.; Skordas, E. S.; Lazaridou, M. S. (18 March 2013), "Seismic Electric Signals: An additional fact showing their physical interconnection with seismicity" (PDF), Tectonophysics, 589: 116–125, Bibcode:2013Tectp.589..116V, doi:10.1016/j.tecto.2012.12.020 {{citation}}: Invalid |display-authors=4 (help).

• Vidale, John E. (16 February 1996), "Do Big and Little Earthquakes Start Differently?", Science, 271 (5251): 953–954, Bibcode:1996Sci...271..953V, doi:10.1126/science.271.5251.953, S2CID 129107396.

• Wade, Nicholas (14 October 1977), "Briefing: More Flowers, less Cabbage", Science, 198 (4313): 176–177, Bibcode:1977Sci...198..176W, doi:10.1126/science.198.4313.176-a, PMID 17755352.

• Wang, Kelin; Chen, Qi-Fu; Sun, Shihong; Wang, Andong (June 2006), "Predicting the 1975 Haicheng Earthquake" (PDF), Bulletin of the Seismological Society of America, 96 (3): 757–795, Bibcode:2006BuSSA..96..757W, doi:10.1785/0120050191.

• Ward, Peter L. (1978), "Ch. 3: Earthquake prediction" (PDF), Geophysical predictions, National Academy of Sciences.

• Wells, D. L.; Coppersmith, K. J. (August 1994), "New empirical relationships among magnitude, rupture length, rupture width, rupture area, and surface displacement." (PDF), Bulletin of the Seismological Society of America, 84 (4): 974–1002.

• Whitcomb, J. H. (1977), "An update of time-dependent vp/vs and ^Vp in an area of the Transverse Range of southern California [abstract]" (PDF), Eos, Transactions, American Geophysical Union, 58 (5): 305.

• Whitham, K.; Berry, M.J.; Heidebrecht, A.C.; Kanasewich, E.R.; Milne, W.G (1976), "Earthquake Prediction in China", Geoscience Canada, 3 (4): 96, 263–268.

• Wood, H. O.; Gutenberg, B. (6 September 1935), "Earthquake prediction", Science, 82 (2123): 219–320, Bibcode:1935Sci....82..219W, doi:10.1126/science.82.2123.219, PMID 17818812.

• Working Group [on the southern San Andreas fault] (1991), "Short-Term Earthquake Hazard Assessment for the San Andreas Fault in Southern California" (PDF), U.S. Geological Survey, Open-File Report 91-32{{citation}}: CS1 maint: extra punctuation (link) CS1 maint: multiple names: authors list (link) CS1 maint: numeric names: authors list (link).

• Working Group on California Earthquake Probabilities; Dawson; Felzer; Frankel; Gupta; Jordan; Parsons; Petersen; Stein; Weldon; Wills (2008), "The Uniform California Earthquake Rupture Forecast, Version 2 (UCERF2)" (PDF), U.S. Geological Survey, Open-File Report 2007-1437 (4): 2053–2107, Bibcode:2009BuSSA..99.2053F, doi:10.1785/0120080049. Also published as California Geological Survey Special Report 203.

• Wyss, M. (1991a), "Introduction", Tectonophysics, 193 (4): 253–254, Bibcode:1991Tectp.193..253W, doi:10.1016/0040-1951(91)90334-o.

• Wyss, M. (1996), "Brief summary of some reasons why the VAN hypothesis for predicting earthquakes has to be rejected", A critical review of VAN, London: Lighthill, S. J. World Scientific, pp. 250–266.

• Wyss, M.; Allmann, L. (1996), "Probability of chance correlations of earthquakes with prediction in areas of heterogeneous seismicity rate: the VAN case", Geophysical Research Letters, 22 (11): 1307–1310, Bibcode:1996GeoRL..23.1307W, doi:10.1029/95GL03548.

• Wyss, Max; Booth, David C. (1997), "The IASPEI procedure for the evaluation of earthquake precursors", Geophysical Journal International, 131 (3): 423–424, Bibcode:1997GeoJI.131..423W, doi:10.1111/j.1365-246X.1997.tb06587.x{{citation}}: CS1 maint: unflagged free DOI (link).

• Yoshii, Hiroaki (30 August 1993), "Social impacts of earthquake prediction in Greece", Tectonophysics, 224 (1–3): 251–255, Bibcode:1993Tectp.224..251Y, doi:10.1016/0040-1951(93)90077-W.

• Zechar, J. Douglas (August 2008), Methods for Evaluating Earthquake Prediction [dissertation] (PDF), Univ. of Southern California, archived from the original (PDF) on 2 October 2013.

• Zechar, J. Douglas; Jordan, Thomas H. (2008), "Testing alarm-based earthquake predictions" (PDF), Geophysical Journal International, 172 (2): 715–724, Bibcode:2008GeoJI.172..715Z, doi:10.1111/j.1365-246X.2007.03676.x, archived from the original (PDF) on 29 April 2014{{citation}}: CS1 maint: unflagged free DOI (link).

• Zechar, J. Douglas; Schorlemmer, Danijel; Liukis, Maria; Yu, John; Euchner, Fabian; Maechling, Philip J.; Jordan, Thomas H. (2010), "The Collaboratory for the Study of Earthquake Predictability perspective on computational earthquake science" (PDF), Concurrency and Computation: Practice and Experience, 22 (12): 1836–1847, doi:10.1002/cpe.1519, S2CID 12672343.

• Ziv, A.; Cochard, A.; Schmittbuhl, J. (2007), "Does Elastic Rebound Theory apply to Seismic Faults?", in Carpinteri, Alberto; Lacidogna, Giuseppi (eds.), Selected Papers from the 11th International Conference on Fracture, Turin, Italy, March 20–25, 2005, pp. 51–55, doi:10.1201/9780203936115.ch7, ISBN 978-0-415-44402-6 (eBook: 978-0-203-93611-5).

• Zoback, Mark D. (21 October 1983), "Seismology [book review of Rikitake, Earthquake Forecasting and Warning]", Science, 222 (4621): 319, Bibcode:1983Sci...222..319R, doi:10.1126/science.222.4621.319, PMID 17734830.

• Zoback, Mary Lou (April–May 2006), "The 1906 earthquake and a century of progress in understanding earthquakes and their hazards", GSA Today, 16 (r/5): 4–11, doi:10.1130/GSAT01604.1, S2CID 129036731.

External links

• U.S. Geological Survey: Earthquake Prediction Topics
• U.S. Geological Survey: Earthquake Statistics
• Nature magazine — debate on whether earthquake prediction is a realistic scientific goal
• Dr Stuart Robbins (1 September 2012). "Lunatic Earthquakes: Do Tides Cause Quakes?". Exposing PseudoAstronomy Podcast. – Podcast discussing why the claim that earthquakes can be predicted is false.

Category:Earthquake and seismic risk mitigation Category:Prediction Category:Earthquakes