Scientists Discover Earth's Largest Volcano Under the Pacific

Dead volcano as big as Mars' Olympus Mons


Scientists say that they have discovered the single largest volcano in the world, a dead colossus deep beneath the Pacific waves.

A team writing in the journal Nature Geoscience says the 310,000 sq km (119,000 sq mi) Tamu Massif is comparable in size to Mars' vast Olympus Mons volcano—the largest in the Solar System.