Off the coast of Oregon, a massive undersea volcano, Axial Seamount, is gearing up for its next eruption. Situated 300 miles offshore and 4,626 feet beneath the Pacific Ocean’s surface, this colossal ...

Will the coast be toast? An increase in seismic activity has prompted predictions that a mile-wide submarine volcano named the Axial Seamount will erupt near the United States West Coast by year’s end ...

The ground around Italy’s active Campi Flegrei volcano has moved unpredictably for centuries. However, in the early 1980s, it suddenly rose by more than 6 feet with little warning. This dramatic rise ...