A scalding-hot pool of mineral water is shown at the Long Valley Caldera in 2019 near Mammoth Lakes. (George Rose / Getty Images) One of California's riskiest volcanoes has for decades been undergoing ...

Smoke Rising From ‘Volcano’ at California Beach Sparks Rare Geological Alert ...

MOUNT SHASTA, Calif. – For some, Mount Shasta’s summit is a milestone. For others, it’s the office. Mount Shasta presents a unique challenge for U.S. Geological Survey (USGS) scientists. With a peak ...

More than a century has passed since the last eruptions of Lassen Peak and Mount Shasta, yet both remain active and are among the top two highest-threat volcanoes in California, according to the U.S.

Southern California has many treasures, but believe it or not, nothing like this hidden gem. When most of us think of volcanoes, we think of molten lava spewing up from the earth and melting ...

Lassen Peak had its most powerful explosion in a series of eruptions that occurred between 1914 and 1917. Take a look at ...

The National Oceanic and Atmospheric Administration released several of its most striking images of 2025, homing in on extreme weather events that took place in California, Hawaii and Texas over the ...