These fast-moving mudflows can devastate towns in a matter of minutes.

Add Yahoo as a preferred source to see more of our stories on Google. The Morning Glory pool in Yellowstone national park. Yellowstone is underlain by two magma bodies. Michael Juhran/dpa Unlike old ...

Mount Rainier - one of many volcanoes found in the Cascade Range - is reflecting in the Reflection Lakes in Mount Rainier National Park in Washington State, USA. A seismic survey challenges the ...

United States Geological Survey scientists are maintaining heightened monitoring of Cascade Range volcanoes as a pattern of low-level seismic activity continues beneath several major volcanic systems ...

Add Yahoo as a preferred source to see more of our stories on Google. An aerial view of the Crater Lake Caldera in Oregon. Obviously, visible lava spewing from a volcano’s caldera, like Hawai’i’s ...

Scientists from the United States Geological Survey are enhancing their surveillance of volcanoes in the Cascade Range as low ...

Social media videos are stoking fears about a catastrophic eruption in central Oregon, but the science tells a different story.

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

BEND, Ore. (AP) — A bulge near the prominent Cascade Range volcano known as South Sister has nearly stopped growing, scientists say. The uplift was spotted more than a decade ago and led scientists to ...

Here in western Montana, we are used to preparing for severe weather and winter storms, but there is another natural threat ...

Jul. 26—Nick Burson and Marc McPherson weren't thinking about setting a record the first time they climbed Washington's five tallest Cascade Range volcanoes in a single trip. They just wanted to see ...