USGS/Cascades Volcano Observatory, Vancouver, Washington
Crater Lake, Oregon
Earthquakes and Seismicity
- Current Activity
- Pacific Northwest Seismic Network (PNSN)
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Pacific Northwest Seismic Network (PNSN)
-- Information, Maps, includes link to the University of Washington PNSN Website
Earthquakes commonly provide the earliest warning of volcanic unrest, and earthquake swarms immediately precede most volcanic eruptions. Information on Pacific Northwest earthquake activity and hazards is provided by the Pacific Northwest Seismic Network (PNSN) which operates seismograph stations and locates earthquakes in Washington and Oregon. The PNSN is operated jointly by the University of Washington, the University of Oregon, and Oregon State University, and is funded by the U.S. Geological Survey, the Department of Energy, and the State of Washington. The PNSN is based at the Geophysics Program of the University of Washington in Seattle, and is a member of the Council of the National Seismic Systems (CNSS), a group of regional network operators who cooperate to locate and catalog earthquakes throughout the United States. -- Wright and Pierson, 1992; and the University of Washington's Geophysics Program
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2003, Seismic Monitoring at Cascade Volcanic Centers - The Big Picture
Informational text and shaded relief map
showing locations of all PNSN/NCSN seismic stations operating in the Pacific Northwest as of November, 2003. Map includes the 13 major Cascade volcanic centers.
-- Excerpt from: Moran, 2005, USGS Scientific Investigations Report 2004-5211
- Special Items of Interest
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Crater Lake Historical Earthquakes
-- Excerpt from: Bacon, et.al., 1997
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Map - Earthquake Epicenters and Magnitudes in the Crater Lake Region,
1920-1995
-- [Map,29K,InlineGIF]
-- Modified from: Bacon, et.al., 1997,
USGS Open-File Report 97-487
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Plot - 1997-2007, Seismic Plot
-- [Graphic,25K,InlineGIF]
-- showing relationship between time and depth of earthquakes (quality CC or better) beneath Crater Lake. "0" depth corresponds to sealevel. -- Modified from University of Washington's Geophysics Program
- Maps and Graphics
- Items of Interest
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Cascade Range Current Activity Updates
-- includes Crater Lake
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Crater Lake Historical Earthquakes
-- Excerpt from: Bacon, et.al., 1997
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Current Seismicity - Link
-- Link courtesy University of Washington Pacific Northwest Seismic Network (PNSN)
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Earthquake Epicenters and Magnitudes in the Crater Lake Region,
1920-1995 - Map
-- [Map,29K,InlineGIF]
-- Modified from: Bacon, et.al., 1997,
USGS Open-File Report 97-487
-
Map - Earthquake Epicenters and Magnitudes in the Crater Lake Region,
1920-1995
-- [Map,29K,InlineGIF]
-- Modified from: Bacon, et.al., 1997,
USGS Open-File Report 97-487
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Maps and Graphics - Crater Lake
-- includes Crater Lake seismic-related maps and graphics
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Pacific Northwest Seismic Network (PNSN)
-- Information and links
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Pacific Northwest Seismic Network - Oregon and Southern Washington - 1998 Map
-- [Map,30K,InlineGIF]
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Pacific Northwest Seismic Network - Washington and Oregon - 1998 Map
-- [Map,40K,InlineGIF]
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Pacific Northwest Seismic Network - Washington and Oregon - 2003 Information and Map
-- Moran, 2005, USGS Scientific Investigations Report 2004-5211
-
Plot - 1997-2007, Seismic Plot
-- [Graphic,25K,InlineGIF]
-- showing relationship between time and depth of earthquakes (quality CC or better) beneath Crater Lake. "0" depth corresponds to sealevel. -- Modified from University of Washington's Geophysics Program
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Seismic Monitoring at Cascade Volcanic Centers, 2004 -- Status and Recommendations
-- Moran, 2005, USGS Scientific Investigations Report 2004-5211
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Volcano and Earthquake Hazards in the Crater Lake Region, Oregon
-- Bacon, et.al., 1997, USGS Open-File Report 97-487
- General Earthquake and Seismic Information
- Useful Links
Return to:
[Crater Lake Menu]
[Crater Lake Monitoring Menu]
[Cascade Range Earthquakes and Seismicity Menu]
[Earthquakes and Seismicity Menu]
URL for CVO HomePage is:
<http://vulcan.wr.usgs.gov/home.html>
URL for this page is:
<http://vulcan.wr.usgs.gov/Volcanoes/CraterLake/Seismicity/framework.html>
If you have questions or comments please contact:
<GS-CVO-WEB@usgs.gov>
02/13/08, Lyn Topinka