For years, earthquake researchers have been puzzled by a strange underwater fault in the Pacific Ocean that behaves unlike almost any other on Earth. Deep beneath the sea west of Ecuador, the same ...

Scientists directly observed a massive underwater volcanic eruption that created new oceanic crust, offering rare insight ...

Add Yahoo as a preferred source to see more of our stories on Google. This map of Japan shows where an underwater earthquake triggered tsunami alerts Monday. Tsunami warnings issued by the Japanese ...

Deep beneath the eastern Pacific Ocean about 1,000 miles off the coast of Ecuador, a fault line on the seafloor has been generating magnitude 6 earthquakes with almost clocklike regularity for at ...

WELLINGTON, New Zealand (AP) — A powerful undersea earthquake has struck north of New Zealand, prompting tsunami warnings for several island nations. The U.S. Geological Agency says the magnitude 7.7 ...

CHARLESTON, S.C. (WCSC) — Early Friday morning, the U.S. Geological Survey detected a minor submarine earthquake on a historic fault line off the Lowcountry’s coast. At 3:48 a.m., a 2.0 magnitude ...

Deep beneath the Pacific, one undersea fault has produced nearly identical magnitude 6 earthquakes every few years for decades. Researchers now think strange, water-soaked barrier zones inside the ...