Long-quiet volcanoes in the Cascades region of the Pacific Northwest are still underpinned by large reservoirs of magma, new ...

On June 14, 1914, three men climbed Lassen Peak to see why a seemingly dormant volcano had started rumbling 16 days before. Now, peering into a newborn crater, they felt the ground tremble.

It appears that these magma bodies exist beneath volcanoes over their whole lifetime, not just during an active state.' ...

Tucked away in far northeastern California, Lassen offers sweeping grandeur and hydrothermal ... The park's namesake peak is the one of the largest plug dome volcanoes in the world — a type of volcano ...

Lassen Peak is one of the largest plug dome volcanoes in the world, and its most recent violent eruptions from 1914 to 1917, photographed by B.F. Loomis, captured the attention of the nation. Lassen ...

They detected these reservoirs below Mount Rainier, Mount St. Helens, Mount Hood, Newberry Volcano, Crater Lake and Lassen Peak. Three Sisters and Mount Shasta did not show similar patterns ...