May 18th marks the 45th anniversary of the eruption of Mt. St. Helens and the creation of the USGS Cascades Volcano Observatory. This Saturday they are holding an open house to teach people about ...

Of the five USGS volcano observatories, the Cascades Volcano Observatory is now the largest, with close to 80 permanent staff members focused on the Cascades and beyond. Many of them tasked with ...

MT. RAINIER, Wash. (KOMO) — Mount Rainier saw a swarm of hundreds of small earthquakes that started early Tuesday morning. The activity began just before 1:30 a.m. on July 8, with hundreds of ...

A swarm of small earthquakes is still shaking Mount Rainier, marking the most significant seismic activity at the Cascade volcano in decades. The U.S. Geological Survey’s Cascades Volcano Observatory, ...

As of January 4, 2021, Dr. Jon Major takes over leadership of the USGS Cascades Volcano Observatory from Seth Moran, who has served as the scientist-in-charge for the past five years. “It is my ...

“It’s now a larger swarm than anything we’ve seen since we’ve been (seismic) monitoring anything at Mount Rainier,” Alex Iezzi, a research geophysicist, said in an interview Thursday. Researchers ...

The U.S. Geological Survey said it and other agencies were monitoring the situation and would issue additional alerts "as ...