Hidden in the Pacific, two very different volcanoes are forcing scientists to rethink what counts as “biggest.” Tamu Massif, ...

A new study shows eruptions and wildfires altered the upper atmosphere, yet recent surface warming points elsewhere.

Far below the Pacific, a volcano long written off as geologically dead has turned out to be both active and teeming with life. When researchers sent cameras into its crater, they did not find bare ...

During the 37th eruption of Kilauea in Hawaii, video captured a massive ‘volnado’ next to the lava fountain. A volnado is a column of ash, dust and smoke that picks up during a volcanic eruption and ...

More than a million giant skate eggs are discovered incubating in the heat of an underwater Pacific Ocean volcano.

A swelling underwater volcano off the West Coast may erupt later than previously projected. Scientists initially thought that the Axial Seamount, which lies 300 miles off the coast of Oregon, would ...

POZZUOLI, Italy — In Greek and Roman mythology, the Campi Flegrei volcano is depicted as the opening to the underworld. Its prehistoric eruptions blocked out the sun, turning summer into winter and ...

Scientists are predicting that a mile-long volcano off the U.S. West Coast will erupt this year. The Axial Seamount, an underwater volcano located about 300 miles off the coast of Oregon, is ...