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

Scientists aboard the Coast Guard Cutter Healy have discovered a large underwater volcano approximately 1,600 meters beneath ...

How many of the 160 named volcanoes in the U.S. and territories do you know? If you live in Alaska you have a big advantage.

That's after seismometers picked up an increased number of small earthquakes at the volcano and GPS sensors showed it was ...

Scientists aboard a U.S. Coast Guard icebreaker have discovered something unusual in the Arctic Ocean off northern Alaska: a ...

According to The Independent, the crew aboard the Coast Guard Cutter Healy were working on a project to map the seafloor off the coast of Alaska when they found a new volcano-like formation deep ...

A volcano erupted with lava spewing from a fissure on the Reykjanes Peninsula in southwestern Iceland late Wednesday evening.

The Coast Guard said their work led to the discovery of what’s described as a sub-sea volcano-like feature during the first ...

Scientists can’t know precisely when a volcano is about to erupt, but they can sometimes pick up telltale warning signs ...