USGS Volcano Hazards Program Volcano Update


CVO update page and observatory web site


Activity Update: All volcanoes in the Cascade Range of Oregon and Washington are at normal levels of background seismicity. These include Mount Baker, Glacier Peak, Mount Rainier, Mount St. Helens, and Mount Adams in Washington State; and Mount Hood, Mount Jefferson, Three Sisters, Newberry Volcano, and Crater Lake, in Oregon.

Recent Observations: Seismicity in the Cascade Range remains at background levels. It was a good week to view teleseismic waves from distal earthquakes on the PNSN webicorders. Notable are the 31 August, magnitude 7.6 earthquake in the west Pacific, east of the Philippines, and the 30 August, magnitude 6.8 earthquake in the north Atlantic. See the USGS' National Earthquake Information Center (NEIC) website for more information regarding these earthquakes.

The U.S. Geological Survey Cascades Volcano Observatory and the University of Washington continue to monitor the Washington and Oregon volcanoes closely and will issue additional updates and changes in alert level as warranted.

For other inquiries please call 360 993-8973.

Update in Common Alerting Protocol (CAP) format