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 ...

Mount Lassen became one of the first volcanic eruptions ever captured on moving film. This map, provided by the National Park Service, shows the primary volcanoes in the Cascade Mountain Range.

While some volcanoes like Mount Shasta haven't had major eruptions ... the eruption of Cinder Cone in 1666, and the Lassen Peak eruption from 1914 to 1917. According to USGS, heightened ...

Clynne agrees with that. In comparison, ash was spread an estimated 280 miles away to Eastern Nevada during Lassen Peak’s largest eruption. Mount St. Helen’s impact was realized as far away as ...

Like dynamite and black powder, volcanoes come in varying shapes and sizes. Prior to Mount St. Helens, Mount Lassen in Northern California held the record for the largest eruption in the ...

The explosion was the strongest since 2021, expelling ash, dust, lava and a pyroclastic flow, but no injuries or deaths were ...

At the more explosive end of the scale are Plinian eruptions. These include the famous eruption of Mount Vesuvius in 79AD, ...