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417:(IODP) core sites, Tamu Massif appears to be a single massive volcano made of lava flows that emanated from the volcano centre and formed its shield shape; however, the profiles have large gaps in them, leaving open the possibility that it may represent the activity of more than one volcano. A subsequent study in 2016 found that the massif was likely generated by a single volcano. In 2015, researchers found that the volcano's structure bore patterns of
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362:. The main part of Tamu's rounded dome extends over an area of 450 km × 650 km (280 mi × 400 mi), totaling more than 292,500 km (112,900 sq mi), many times larger than Mauna Loa, which has an area of 5,000 km (1,900 sq mi), and about half the area of the
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together. A study in 2016 found that Tamu Massif likely encompassed the entire
Shatsky Rise, meaning that Tamu Massif has an area of about 533,000 square kilometres (206,000 sq mi), surpassing Olympus Mons in surface area, though it has not yet been determined which of the two volcanoes has
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period over a relatively short period of time (a few million years) and then became extinct. Tamu Massif was formed during a single geologically brief eruptive period, which scientists had previously thought was impossible on Earth. If confirmed, the suggestion that it could be a single
184:. The massif covers an area of about 553,000 square kilometres (214,000 sq mi). Its summit is about 1,980 m (6,500 ft) below the surface of the ocean, and its base extends to about 6.4 km (4.0 mi) deep. It is about 4,460 metres (14,620 ft) tall.
440:, the boundary between the Earth's crust and mantle, extends more than 30 kilometres (19 mi) beneath the base of Tamu Massif, meaning that the volcano is unlikely to ever erupt again, since magma is presumably unable to penetrate a barrier that thick.
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305:. In September 2013, Sager and his team concluded that Tamu Massif is "the biggest single shield volcano ever discovered on Earth". Other igneous features on the planet are larger, such as the
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406:, researchers discovered that there are three bathymetric highs and a low ridge, a topography that would imply three separate volcanoes; but the
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are very gradual, ranging from less than half a degree to one degree near its summit. The
Shatsky Rise oceanic plateau is comparable in size to
662:"Bottomfish fisheries by Japan, Russia, and Republic of Korea occur on various seamounts in the northwest Pacific within international waters"
329:, which means "massive" in French, is a large mountain or a section of the planet's crust that is demarcated by faults and flexures.
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325:. William Sager, a geology professor and one of the lead scientists studying the volcano, previously taught at Texas A&M. A
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William W. Sager (2013). "An immense shield volcano within the
Shatsky Rise oceanic plateau, northwest Pacific Ocean".
468:– The third-largest volcano on Earth; also the largest active volcano and the largest volcano extending above sea level
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309:, but it has not yet been determined if they are indeed just one volcano or rather complexes of several volcanoes.
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J. J. Mahoney (2005). "Jurassic-Cretaceous boundary age and mid-ocean-ridge–type mantle source for
Shatsky Rise".
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474:- The second-largest volcano on Earth, the largest shield volcano on Earth, nearly twice as large as Mauna Loa
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indicates a single massive volcano. Based on multichannel seismic profiles and rock samples from
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Witze, Alexandra (19 November 2015). "The world's biggest volcano is a magnetic mix-up".
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Witze, Alexandra (5 September 2013). "Underwater volcano is Earth's biggest".
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The Tamu Massif was formed about 145 million years ago during the Late
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on either side, indicating that the volcano is likely a hybrid of a
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690:"Scientists Confirm Existence of Largest Single Volcano On Earth"
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from the
Department of Earth and Atmospheric Sciences at the
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668:. Honolulu, HI: Pacific Islands Fisheries Science Center,
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mid-ocean ridges, which was a highly unusual occurrence.
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would make the Tamu Massif the largest known volcano on
721:. Texas A&M University. 2013-09-05. Archived from
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966:The Largest Volcano in the World-Mid Pacific Ocean
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715:"World's Largest Volcano Now Named TAMU"
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176:. Tamu Massif is located in the
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845:Journal of Geophysical Research
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1017:Volcanoes of the Pacific Ocean
1002:Seamounts of the Pacific Ocean
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58:4,460 metres (14,620 ft)
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50:1,980 metres (6,500 ft)
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248:Emperor Seamounts Chain
211:Emperor Seamounts Chain
71:Northwest Pacific Ocean
992:Extreme points of Asia
839:J. B. Plescia (2004).
299:University of Houston
1027:Cretaceous volcanoes
866:10.1029/2002JE002031
1012:Submarine volcanoes
857:2004JGRE..109.3003P
818:2013NatGe...6..976S
589:2005Geo....33..185M
495:Informational notes
404:magnetic lineations
307:Ontong Java Plateau
295:marine geophysicist
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1022:Jurassic volcanoes
140:underwater volcano
997:Extinct volcanoes
987:Cretaceous System
963:Sager, W., 2014,
806:Nature Geoscience
642:theregister.co.uk
556:Maritime Magazine
431:junction of three
419:magnetic striping
168:in the northwest
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696:. 2013-09-05
694:ScienceDaily
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478:Ring of Fire
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368:Olympus Mons
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243:Shatsky Rise
206:Shatsky Rise
178:Shatsky Rise
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80:Shatsky Rise
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162:Tamu Massif
151:Age of rock
112: /
87:Coordinates
22:Tamu Massif
981:Categories
916:2013-09-07
891:2013-09-10
729:2013-09-07
719:Tamu Times
700:2013-09-07
675:2013-09-07
647:2013-09-07
583:(3): 185.
561:2013-10-04
490:References
408:plume-head
388:New Mexico
380:California
343:Cretaceous
109:33°N 158°E
948:181358030
523:Citations
509:Alba Mons
466:Mauna Loa
438:Moho line
358:, in the
341:to Early
317:The name
313:Etymology
263:Kamchatka
226:Kamchatka
472:Pūhāhonu
444:See also
366:volcano
356:Pūhāhonu
339:Jurassic
166:seamount
136:Seamount
68:Location
63:Location
853:Bibcode
814:Bibcode
585:Bibcode
577:Geology
483:Tharsis
396:Ireland
392:Britain
364:Martian
348:volcano
333:Geology
125:Geology
114:33; 158
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932:Nature
784:2 July
754:3 July
749:Forbes
612:Nature
425:and a
402:Using
376:slopes
374:. Its
372:basalt
327:massif
268:Alaska
236:* Tamu
231:Alaska
199:* Tamu
164:is a
55:Height
944:S2CID
411:model
390:, or
384:Japan
352:Earth
258:Japan
221:Japan
182:Japan
100:158°E
76:Range
786:2019
756:2019
670:NOAA
511:and
394:and
319:Tamu
293:, a
131:Type
97:33°N
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