World’s biggest volcano: Tamu Massif discovered under the Pacific Ocean.

Scientists Just Found the World’s Biggest Volcano Under the Pacific

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Sept. 6 2013 2:59 PM

Scientists Just Found the World’s Biggest Volcano Under the Pacific

Researchers said in the journal Nature that the formation dwarfs the previous record holder, Mauna Loa in Hawaii, and compares to the massive Olympus Mons on Mars. 

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