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 ...

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 ...

Volcanoes often give little warning before they erupt, but now scientists have discovered an unexpected early warning sign—trees. This new finding comes from a joint study by researchers from NASA, ...

A dormant super volcano that sits just east of Mammoth Mountain has seen over 2,000 earthquakes over the past decade or so. California's Largest Volcano Remains Active, But A New Study Says A ...

News; Nation/World; One of California’s riskiest volcanoes is very active. Is an eruption coming? Oct. 23, 2023 Updated Mon., Oct. 23, 2023 at 12:38 p.m. Mammoth Mountain, in the Eastern Sierra ...

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 ...

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 ...

Similar results emerged from volcanic areas, like Mammoth Mountain in California and Furnas Caldera in the Azores, where vegetation clearly responded to volcanic carbon dioxide exposure.

One of California's riskiest volcanoes has for decades been undergoing geological changes and seismic activity, which are sometimes a precursor to an eruption, but—thankfully—no supervolcanic ...