Eruptions of steam, ash, and tephra continued until June 1917, when the volcano resumed its quiet profile, with minor steam clouds occasionally reported. Since 1921, Lassen Peak has remained quiet.

Are you planning a Lassen Volcanic National Park itinerary? It was one of those moments when we realized, with ...

Tucked away in far northeastern California, Lassen offers sweeping ... The park is home to more than 40 volcanoes, bubbling mudpots, steaming fumaroles, stunning mountain views and vast, naturally ...

Its namesake feature, the 10,457-foot Lassen Peak, is one of the world's largest ... Canyon State Park owes much of its existence to volcanic eruptions millions of years ago.

Accurately predicting when a volcano will erupt is nearly impossible, but Alaska’s Mount Spurr is sending clear warning signs to volcanologists. Experts at the Alaska Volcano Observatory (AVO ...

Here's how the largest volcanic eruptions measure up ... VEI-3 are catastrophic eruptions that happen every few months. Lassen Peak in Northern California had a VEI-3 in 1915.

The area around Kanlaon Volcano in the Philippines was still under evacuation orders from an eruption in December​.