Since then, Yellowstone has seen two more major volcanic eruptions and many smaller ones—earning the name “supervolcano.” The ...

KINGSTOWN, St. Vincent (AP) — La Soufriere volcano has fired an enormous amount of ash and hot gas in the biggest explosive eruption yet since volcanic activity began on the eastern Caribbean island ...

As lava continues to flow on Hawaii's Big Island, the U.S. Geological Survey detected two small explosions and seismic activity from the Kilauea volcano. The USGS said two explosions, one at 12:46 AM ...

Colossal volcanic eruptions like the kind that may have obliterated the dinosaurs more than 65 million years ago are caused by mantle plumes that rise from shifting underground mountains deep within ...

Volcanoes often look deceptively quiet until the moment they unleash towering plumes of ash and gas, yet the precise switch that turns a gentle rumble into a devastating blast has remained stubbornly ...

Add Yahoo as a preferred source to see more of our stories on Google. Marco Calo, left, a geophysicist at the National Autonomous University of Mexico (UNAM), take a break on the slopes of the ...

Volcanoes are Earth’s geologic architects. They’ve created more than 80 percent of our planet’s surface, laying the foundation that has allowed life to thrive. Their explosive force crafts mountains ...