Mount Shasta presents a unique challenge that most other active volcanoes don't for USGS scientists. The only place to sample ...

Add Yahoo as a preferred source to see more of our stories on Google. The largest active volcano in Oregon is being drilled into as part of an effort to create a cleaner energy source. Engineers are ...

Far beneath the forests and hot springs of the American West, the continent’s largest active volcanic system is rumbling in ways scientists are only now beginning to fully resolve. New seismic ...

When you think of the United States, images of sprawling cities and vast landscapes might come to mind, but not the hidden and ever-present geological threat: volcanoes. While you might associate ...

Toxic gases and ash from Mount Vesuvius took just minutes to asphyxiate an estimated 2,000 Pompeians in C.E. 79. A pyroclastic flow from Mount Pelée claimed the lives of nearly 30,000 on the Caribbean ...

The Minamiaso Railway runs inside one of the world's largest calderas of Mount Aso, an active volcano in Kumamoto Prefecture.