New Mexico size volcano discovered in the depths of the Pacific Ocean

The largest single volcano on Earth lay quietly hiding in the depths of the Pacific Ocean, about a thousand miles east of Japan, having been extinct for millions of years. Scientists have now discovered the dome-shaped behemoth, which has a footprint the size of New Mexico.
The discovery topples the previous world record-holder for largest volcano — Mauna Loa, one of the five that form the Big Island of Hawaii. The area covered by the newly discovered volcano rivals the biggest volcano in the solar system, Olympus Mons on Mars.
“Olympus Mons is the 800-pound gorilla of the solar system,” said geophysicistWilliam W. Sager of the University of Houston, the study’s lead author. “We didn’t know these massive volcanoes were here on Earth.”
The team named it Tamu Massif. TAMU is the abbreviation for Texas A&M University, Sager’s home institution when he and colleagues first studied the undersea mountain range that contains the giant.