EARTH - The biggest volcano on earth is under the ocean

The biggest single volcano on Earth is in the Pacific Ocean, roughly halfway between Hawaii and Japan. Dubbed 'Tamu Massif,' the humongous volcano erupted almost 150 million years ago.A volcano submerged under the Pacific Ocean might be the biggest volcano on Earth – depending how you measure it.“Our final calculations have determined it is about 120,000 square miles in area, or about the size of the state of New Mexico, making it by far the larg ...

http://www.salon.com/2013/09/06/the_biggest_volcano_on_earth_is_under_