Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. An unknown volcano ...

The Axial Seamount—a volcano located 300 miles off the coast of Oregon and a mile underwater—is slowly showing signs of an impending eruption. Although less well-known that other volcanic ...

Scientists have been studying the Axial Seamount for three decades. Scientists are predicting that a mile-deep volcano off the U.S. West Coast will erupt this year. The Axial Seamount, an ...

More than 130 earthquakes were registered Tuesday at Iceland's large Bardarbunga volcano, a possible precursor to an eruption among the several scenarios being considered, the Icelandic ...

An "unusually large" ice volcano in Iceland could be about to blow after more than 130 earthquakes hit the region in a five-hour period, experts say. The earthquake swarm began in the northwestern ...