In 1997, Hollywood referenced the Mammoth/Long Valley saga by name in the disaster thriller “Dante’s Peak,” about a small mountain village in the northwest in denial as a dormant volcano ...

A flurry of small earthquakes rumbling near the Mammoth Mountain Volcano, have been categorized as "volcanic unrest" by the United States Geological Survey. Nearly three dozen earthquakes ranging ...

Mammoth Mountain is a relatively young volcano, built by a series of eruptions between 220,000 and 50,000 years ago. The USGS rates the likelihood of an eruption occurring in Long Valley at less ...

The volcanic risk at Mammoth is considered serious enough that a secondary escape route, known as the Mammoth Scenic Loop, was built to connect Mammoth Mountain to U.S. 395.

Eruptions around Mona Lake and Mammoth Mountain are as young as 300 to 600 years, and Mount Shasta went off about 3,000 years ago and is very capable of a repeat. “All of these volcanoes will ...

The U.S. Geological Survey deemed the Long Valley Caldera — adjacent to Mammoth Mountain — to be a "very high threat" in 2018. But a new study in the Science Advances journal suggests a ...

MAMMOTH LAKES – Three members of the Mammoth Mountain ski patrol were killed when they fell into a volcanic gas vent on the 11,053-foot peak in the Eastern Sierra on Thursday.

The Solfatara di Pozzuoli is a volcano of Campi Flegrei, an area north of Naples made up of about 40 ancient volcanoes. Giuseppe Ciccia / NurPhoto via Getty Images file Nov. 1, 2023, 11:47 AM EDT ...

A flurry of small earthquakes rumbling near the Mammoth Mountain Volcano, have been categorized as "volcanic unrest" by the United States Geological Survey. Nearly three dozen earthquakes ranging ...