LASSEN VOLCANIC NATIONAL PARK (CBS SF) -- It quietly built up magma for 27,000 years before beginning a 7-year-long series of eruptions on May 30, 1914 and today geologists closely monitor Northern ...
“People had believed that Lassen Peak, a 10,457-foot high mountain, was an extinct volcano…. Then on May 19, 1915, a great eruption with lava caused a massive mudflow down the northeastern slope of ...
Follow the sulphur smell to an area of bubbling fumaroles and hot springs. They indicate that beneath the crust of this volcanic territory, a lot of hot gas continues to rise. A wildly scenic hike of ...
LOS ANGELES (AP) — Nearly 200,000 people live, work or pass through California's volcanic hazard zones on a daily basis, researchers said Monday in a report broadly assessing what could be at risk ...