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 lava flow from this fissure entered the ocean by the afternoon of June 2, farther south than the two earlier flows. For the next three weeks, lava would drain from Mauna Loa volcano via this ...

Shield volcanoes have low viscosity lava which flow easily: they build a shallow edifice. The bottom line is that a shield volcano needs much more magma to reach the same prominence as a stratovolcano ...

Hawaii's Kilauea volcano sent jets of lava shooting over 1,000 feet into the air early Friday morning, marking another explosive episode for the active volcano.

Hawaii's Kilauea volcano sent jets of lava shooting over 1,000 feet into the air early Friday morning, marking another explosive episode for the active volcano. The volcanic activity began at 11: ...

Mount Lewotobi Laki-laki, a volcano in Indonesia, erupted on Tuesday night, blasting thick gray ash up to 5,000 meters above its peak. It was reported to be visible as far as 100 miles away ...

A cropped comparison of two USGS Hawaiian Volcano Observatory webcam images showing changes to the landscape of Kilauea summit region over the past six months. Twenty-five episodes of lava ...

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