The most destructive volcanic eruption in United States history happened less than half a century ago in Washington state. On May 18, 1980, the north side of Mount St. Helens, in southwestern ...

This list of stories illustrates the role that volcanoes, especially Mount Rainier, play in Washington state. Stories describe Mount Rainier's shrinking peak due to melting ice, and the impact ...

Intrigued by reports of recent volcanic eruptions on Venus? WashU planetary scientists Paul Byrne and Rebecca Hahn want you to use their new map of 85,000 volcanoes on Venus to help locate the next ...

A recent earthquake swarm at Mount Rainier in Washington state, along with increased volcanic activity in Alaska, Oregon, and Hawaii, has captured the news media's attention and sparked questions ...

MOUNT ADAMS, Wash. (KPTV/Gray News) – Scientists are installing new monitoring equipment around Mount Adams amid a spike in seismic activity under the volcano. Mount Adams, located in Washington state ...

Scientists have been left baffled by a record spike in earthquakes near Washington's Mount Adams volcano that has been dormant for thousands of years. The volcano is deemed a 'high threat' due to its ...

Volcanoes in Alaska, Washington state, Oregon and Hawaii have been rumbling and even spewing lava, enough to spark a swarm of news stories. But despite the jolts and temblors, geologists say there's ...

A "swarm" of earthquakes began at Mount Rainier in Washington in the early morning hours on Tuesday with hundreds of quakes detected so far, making it the largest such event at the volcano since 2009.