Cascades Volcano Observatory
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The U.S. Geological Survey's Cascades Volcano Observatory strives to serve the national interest by helping people to live knowledgeably and safely with volcanoes in WA, OR, and ID.
News
Date published: August 7, 2020
Low lake water, dry conditions in Newberry caldera the cause of increased sulfur smells?
Field crews set up temporary gas monitoring sensors and sample hot springs and seeps, soils, and areas where sulfur smells were reported. Preliminary data show little change from previous years and monitoring effort will continue.
Date published: May 14, 2020
Mount St. Helens’ 1980 Eruption Changed the Future of Volcanology
If scientists armed with today's monitoring tools and knowledge could step back in time to the two months before May 18, 1980, they would have been able to better forecast the forthcoming devastating eruption.
Date published: December 19, 2019
Earthquakes occur in Mount Rainier's hydrothermal system.
While the seismicity represents a temporary uptick in activity, Mount Rainier remains at normal, background levels of activity.
Attribution: Cascades Volcano Observatory, Mount Rainier