This Northern California gem boasts fewer crowds than the national parks of Southern California. Lassen Volcanic National ...

Exactly 100 years after California's last volcanic eruption, national park officials plan to gather at Mount Lassen on Friday to commemorate the event and discuss the possibility of future ...

The Mount St. Helens eruption anniversary prompts investigation into the California earthquakes: eruption history, threat ...

California has seven active volcanoes, each with a unique eruption history, categorized by type and threat level. The USGS monitors these volcanoes, providing information to authorities and the ...

It’s not a matter of if the area around Lassen Volcanic Center will erupt in the future, but when. That’s according to Dr. Michael Clynne, research geologist, and the most knowledgeable scientist on ...

The May 18, 1980, eruption of Mount St. Helens in southern Washington claimed 57 lives and blasted the terrain of old-growth ...

Of the eight active volcanoes on the USGC watch list, three are relatively easy to explore — Long Valley, Mt. Lassen, and ...

(In modern times the largest eruptions of Lassen Peak occurred between 1914-1922, but these volcanic flare-ups have been relatively modest in size). The Sierra geo-province is composed of so-called ...

There have been at least 10 volcanic eruptions in California during the past 10,000 years. The last was Mt. Lassen that erupted between 1914 and 1917. Before that it was Mt. Lassen’s more ...