A swarm of small earthquakes shook Mauna Kea Thursday but it is not related to the movement of magma underneath the long-dormant volcano, U.S. Geological Survey scientists said today.

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

The summit region of Kīlauea experienced tephra fallout and a Kona low storm this past week. Cleanup, recovery, and regrowth ...

This value is usually about 2,100 to 2,190 degrees and can be measured in a few different ways. Calibrated thermal ...

Hawaii's Kilauea volcano was erupting in its 43rd episode on Tuesday, prompting warnings from the U.S. Geological Survey and National Weather Service. A Volcanic Activity Notice issued by the USGS at ...

Federal scientists are pushing back against viral claims that “mega eruptions” could strike within days, even as they quietly prepare for the possibility that any restless volcano can change behavior ...

Hawaii's Kilauea volcano is shooting lava fountains up to 1,000 feet, and falling ash and volcanic fragments are forcing temporary closures on the Big Island.

A volcanic formation known as Pele’s hair is produced when air-filled magma is stretched, according to a new study by a team ...

Two hours after fountaining began, the Hawaiʻi County Civil Defense Agency issued a Volcano Warning. Hawaiʻi Volcanoes ...

Tephra is fragmented volcanic material — including ash, rock and strands of volcanic glass — blasted into the air during an ...

These processes are natural and have been recognized and embodied in Native Hawaiian oral traditions about Pele, Lono and ...