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USGS/Cascades Volcano Observatory, Vancouver, Washington

Mount Rainier, Washington
Earthquake Swarm, November 7, 2004


Click button to link to current Mount Rainier Seismicity Link to: Current Seismicity

U.S. Geological Survey, Vancouver, Washington
University of Washington, Pacific Northwest Seismograph Network, Seattle, Washington
November 8, 2004 10:30 am PST (1830 UT)



Mount Rainier earthquake sequence: A sequence of about 18 earthquakes was recorded yesterday [November 7, 2004] between 10:00 and 12:00 PST at Mount Rainier. The largest event, magnitude 3.2, occurred at 11:23, and was located at a depth of 1.6 kilometers in an area of persistent seismicity just south of the summit. Such earthquake sequences constitute typical behavior at Mount Rainier. The last one occurred in February 2002.


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09/24/09, Lyn Topinka