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 ...

Indonesia's Mount Sinabung has been erupting since 2013. VEI-3 are catastrophic eruptions that happen every few months. Lassen Peak in Northern California had a VEI-3 in 1915. VEI-4s happen about ...

Tucked away in far northeastern California, Lassen offers sweeping grandeur and hydrothermal ... naturally dark skies. The park's namesake peak is the one of the largest plug dome volcanoes in the ...