An underground volcano eruption, with the power of hundreds of atomic bombs and which caused deadly tsunamis, gave out a ...

Moments before one of the largest underwater volcanic eruptions smothered the Pacific island of Tonga, a strange signal ...

Mapping in the Chukchi and Beaufort seas off Alaska has uncovered a 1,640-foot-tall structure on the seafloor, but scientists ...

While the Tonga volcanic eruption may have seemed like a relatively unpredictable event, researchers have discovered a ...

HONOLULU – An undersea volcano off the southeastern coast of the Big Island of Hawaii has been rocked by a swarm of more than 70 earthquakes since the weekend, according to the U.s. Geological ...

(CNN) – Scientists have discovered an underwater volcano-like feature during Coast Guard-assisted operations off of Alaska. The U.S. Coast Guard cutter called Healy just finished the first two ...