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Volcanic activity in the South Pacific near Tonga on August 12, 2006 caused the emergence of a new island. The crew of the ''Maiken'', a yacht that had left the northern Tongan islands group of [[Vava'u]] in August, reported that they had seen streaks of light, porous [[pumice]] stone floating in the water—and then had "sailed into a vast, many-miles-wide belt of densely packed pumice".<ref>{{cite web |url=http://yacht-maiken.blogspot.com/2006/08/stone-sea-and-volcano.html |title=Stone sea and volcano |work=Fredrik and Crew on Maiken |publisher=[[Blogger (service)|Blogger]] |date=2006-08-17 |accessdate=2008-11-07}}</ref> They went on to witness the [[ephemeral]] island known as [[Home Reef]] breaching the surface.<ref>[http://earthobservatory.nasa.gov/NaturalHazards/view.php?id=17610 New Island and Pumice Raft, Tonga], NASA Earth Observatory photo with commentary, November 2006</ref>
 
A very large pumice raft appeared near [[New Zealand]] in August 2012. It was reported to be spread on an area {{convert|300|mi|km|order=flip}} long and about {{convert|30|mi|km|-1|order=flip}} wide, with pumice blocks poking up to {{convert|2|ft|cm|-1|abbr=out|order=flip}} above the ocean surface.<ref>Space.com, [http://www.space.com/17102-pumice-raft-pacific-volcano-source.html "Source of Mysterious Pumice 'Raft' in Pacific Found, NASA Says"], Jeanna Bryner, 14 August 2012</ref> On 10 August 2012 [[2012 Kermadec Islands eruption and pumice raft|a raft with an estimated arearea of {{convert|26000|km2|mi2}}]] was observed near [[Raoul Island]], north-east of New Zealand by the Royal New Zealand Navy. A possible source for the pumice was the July 2012 eruption of Havre [[seamount]] in the Kermadec Islands north of New Zealand.<ref>{{cite news|title=Vast volcanic 'raft' found in Pacific, near New Zealand |url= https://www.bbc.co.uk/news/science-environment-19207810 |publisher=BBC News |accessdate=10 August 2012 |date=10 August 2012}}</ref><ref>{{cite news| url=http://www.theaustralian.com.au/news/breaking-news/undersea-eruption-creates-pumic-raft/story-fn3dxix6-1226447601191 | work=The Australian | title=Pumice raft bigger than area of Israel | date=10 August 2012}}</ref><ref>{{cite news| url=http://edition.cnn.com/2012/08/10/world/asia/floating-pumice/index.html | work=CNN | title='Weirdest thing' floats in South Pacific - CNN.com | date=11 August 2012}}</ref> (''See: [[2012 Kermadec Islands eruption]]).''
 
[[2012 Kermadec Islands eruption and pumice raft|a of {{convert|26000|km2|mi2}}]] was observed near [[Raoul Island]], north-east of New Zealand by the Royal New Zealand Navy. A possible source for the pumice was the July 2012 eruption of Havre [[seamount]] in the Kermadec Islands north of New Zealand.<ref>{{cite news|title=Vast volcanic 'raft' found in Pacific, near New Zealand |url= https://www.bbc.co.uk/news/science-environment-19207810 |publisher=BBC News |accessdate=10 August 2012 |date=10 August 2012}}</ref><ref>{{cite news| url=http://www.theaustralian.com.au/news/breaking-news/undersea-eruption-creates-pumic-raft/story-fn3dxix6-1226447601191 | work=The Australian | title=Pumice raft bigger than area of Israel | date=10 August 2012}}</ref><ref>{{cite news| url=http://edition.cnn.com/2012/08/10/world/asia/floating-pumice/index.html | work=CNN | title='Weirdest thing' floats in South Pacific - CNN.com | date=11 August 2012}}</ref> (''See: [[2012 Kermadec Islands eruption]]).''
 
In August 2019, a large floating pumice raft covering {{convert|150|km2|sqmi}} was discovered in the tropical Pacific Ocean near [[Late (Tonga)|Late Island]] in the [[Kingdom of Tonga]]. Sailors described a “rubble slick made up of rocks from marble to basketball size such that water was not visible,” as well as a smell of sulfur.<ref>{{cite news| url=https://earthobservatory.nasa.gov/images/145490/a-raft-of-rock | work=NASA | title=A Raft of Rock | date=13 August 2019}}</ref><ref>{{cite news| url=https://www.bbc.com/news/world-australia-49469446 | work=BBC | title=Vast 'pumice raft' found drifting through Pacific Ocean | date=26 August 2019}}</ref>
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