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

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.

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 ...

Take a tour through volcanic history on the edge of the Sierra Nevada near Mammoth Lakes, California. Between the tall ...

Northern California's Shasta-Cascade region is home to a dizzying array of natural splendors, including the snow-dusted volcano of Mount Shasta, the stunning ancient lava flows of Ahjumawi Lava ...

Around the world, volcanologists are following the path of magma as it travels between connected volcanoes, in an effort that ...

The eruption of a Hawaii volcano has people warily eyeing volcanic peaks on America's West Coast. The West Coast is home to an 800-mile (1,300-kilometer) chain of 13 volcanoes from Washington state's ...