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: July 29, 2019

Reporters: Join GeoGirls and scientists at Mount St. Helens as they collect data and learn more about this active volcano

VANCOUVER, Wash. — Twenty-five middle school girls from Washington and Oregon are participating in the fifth annual GeoGirls outdoor volcano science program at Mount St. Helens, jointly organized by the U.S. Geological Survey and the Mount St. Helens Institute.

Date published: May 6, 2019

The National Volcano Early Warning System (NVEWS) will help USGS better monitor nation’s most dangerous volcanoes

In September 2004, USGS scientists detected sudden, but unmistakable, signs that Mount St. Helens was waking up. Volcano monitors had picked up the occurrence of hundreds of small earthquakes and other signals that the volcano’s crater floor had begun to rise. Within a week, several eruptions blasted clouds of ash into the atmosphere, and soon after, a new lava dome emerged in the crater.

Date published: October 24, 2018

Volcanic Threat Assessment help prioritize risk reduction efforts at U.S. volcanoes

Since 1980, there have been 120 eruptions and 52 episodes of notable volcanic unrest at 44 U.S. volcanoes.

Volcanoes Hazards Program Links