When the sixth-strongest earthquake ever recorded hit Russia’s Kamchatka Peninsula last week, it triggered tsunami warnings around the world as waves rippled across the Pacific as far as the U.S., ...

Miles beneath a giant oval-shaped crater punctured in Yellowstone National Park, Wyoming, is a hotbed stirring with restless, agitated magma. It is one of the most aggressive supervolcanoes in the ...

An underwater volcano off the coast of Oregon that was forecast to erupt sometime this year doesn’t look imminent, according to volcanologists who are closely monitoring it. The Axial Seamount is ...

Hundreds of miles off the coast of Oregon, Deb Kelley watched a pod of dolphins swim past the research vessel Atlantis as the sun set on the Pacific Ocean. But beneath the calm seas lurked a behemoth: ...

An underwater volcano off the coast of Oregon is gearing up for an eruption, according to volcanologists who are monitoring for activity. The Axial Seamount-- an underwater volcano located about 300 ...