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.

The recent trip was part of a larger project called the Alaskan Arctic Coast Port Access Route Study, which was enacted to ...

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 ...

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 ...