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.
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Short-lived burst of earthquakes occur at Mount Hood, March 1, 2021
Burst-like swarms commonly interpreted to be caused by movement of hydrothermal fluids (water).
Brief earthquake swarm detected beneath Mount Rainier
While the seismicity represents a temporary uptick in activity, Mount Rainier remains at normal, background levels of activity.
A Geophysicist's Perspective on Mount Hood Monitoring Stations and the Recent Earthquake Swarm
A CVO geophysicist discusses how the monitoring stations installed at Mount Hood in 2020 provide insight into the recent Mount Hood earthquake swarm.