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Science & Technology

World's largest volcano discovered

September 6, 2013 | Comment icon 8 comments



The volcano is up to 145 million years old. Image Credit: Wiki
Tamu Massif encompasses an area covering 120,000 square miles in the sea off the coast of Japan.
The volcano had actually been discovered several years ago by William Sager of the University of Houston but at the time it was believed to be three separate volcanoes. As a single volcano it is about 60 times the size of the world's most active volcano, Mauna Loa in Hawaii.

"It's not high, but very wide, so the flank slopes are very gradual," said Sager. "In fact, if you were standing on its flank, you would have trouble telling which way is downhill."
Dating back 145 million years, Tamu Massif is not only ancient but also fairly unusual. "An immense amount of magma came from the center, and this magma had to have come from the Earth's mantle," said Sager. "So this is important information for geologists trying to understand how the Earth's interior works."

The volcano is in fact so large that it rivals Olympus Mons on Mars and could be a candidate for the second largest volcano in the solar system.

Source: Independent | Comments (8)



Recent comments on this story
Comment icon #1 Posted by moonshadow60 8 years ago
It's fascinating that there is still so much more to discover on this planet. Thank you for sharing this.
Comment icon #2 Posted by pallidin 8 years ago
Yeah, and that thing is huge. Good thing it's not still active.
Comment icon #3 Posted by brlesq1 8 years ago
So is it still spewing magma? I can't tell from the text.
Comment icon #4 Posted by ash68 8 years ago
Re assesed not discovered surely,great find though like the American continent years back,not really discovered as people were already there but re assesed :-P
Comment icon #5 Posted by ash68 8 years ago
Re evaluated not discovered surely,great find though like the American continent years back,not really discovered as people were already there but re evaluated for the west :-P
Comment icon #6 Posted by patagonianhorsesnake 8 years ago
well, i doubt that many people were already on this volcano, seeing as it's over a mile under water. still pretty amazing, though. mars still has us beat, though when it comes to giant volcanoes.
Comment icon #7 Posted by ash68 8 years ago
Ok,bad analogy by me,accepted Pataoni....... and so on.
Comment icon #8 Posted by woopypooky 8 years ago
no wonder japan had so many tsunamis


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