A bout 300 miles off the coast of Oregon, the “most active” underwater volcano sitting beneath the Pacific Ocean is waking up ...

Two powerful earthquakes have struck just miles from the Axial Seamount — a massive underwater volcano off the Oregon coast ...

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 ...

The Axial Seamount – located hundreds of miles off the coast of Oregon and nearly 5,000 feet below the Pacific Ocean’s waves – erupted in April 2015, spewing a mile’s worth of lava onto the sea floor.

That came after scientists received reports of a large plume rising above the volcano, which turned out to be volcanic ash from the 1980 Mount St. Helens eruption. “It kind of looks like a brownish ...