A new study could help identify ancient signs of cryovolcanic activity. This, in turn, could help guide the search for ...

Activity at Mount Tehama continued for about 200,000 years and consisted mostly of pyroclastics and andesitic lava flows containing olivine. During the same period of time, other volcanic vents began ...

A volcano erupted on Wednesday in southwest Iceland, authorities said, with live media images showing it belched smoke and dramatic flows of glowing hot yellow and orange lava, the latest in a ...

The Hawaii Volcano Observatory says lava fountains were reaching over 330 feet Wednesday and would likely go higher before subsiding.

Hawaii's Kilauea volcano erupted spectacularly on Sunday, and then abruptly stopped. Incredible video livestreamed by the USGS shows an incredible lava fountain that almost reached 1,000 feet up ...