The structure may be spewing gas, based on data collected from the water above it, but the scientists still aren't certain. Whether the structure turns out to be a volcano or not, it is 5,250 feet ...

Scientists working alongside the U.S. Coast Guard have discovered a 1,640-foot-tall (500 meters) structure that looks like an underwater volcano off the coast of Alaska.

Then, they found a new volcano-like formation deep in the ocean waters. The new volcano-like structure sits more than 1,600 meters from the water's surface. So, it's far too deep to pose a danger ...

Scientists aboard a U.S. Coast Guard icebreaker have discovered something unusual in the Arctic Ocean off northern Alaska: a volcano-like structure rising more than 500 meters from the seafloor ...

The new volcano-like structure sits more than 1,600 meters from the water's surface. So, it's far too deep to pose a danger to those on land. However, ...

Scientists aboard a U.S. Coast Guard icebreaker have discovered something unusual in the Arctic Ocean off northern Alaska: a volcano-like structure rising more than 500 meters from the seafloor ...