Earth Quake in the US

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Washington Earthquake Information

Historic Information

• Earthquake History of Washington
  
• Quaternary Fault and Fold Information for Washington
  
• Earthquake History of Cascadia (Washington, Oregon, and Southern British Columbia)
  

Institutions

• Pacific Northwest Seismograph Network
  
• Washington Emergency Management Division
  

Maps

• Seismicity Map of Washington
  
• Seismic Hazard Map of Washington
  

Notable Earthquakes

• Largest Earthquake in Washington: 1872 December 15, Magnitude 7.3
  Near Lake Chelan, Washington
• Where do Washington Earthquakes Occur?
  
• Where has Earthquake Damage Occurred in Washington State?
  
• Historic Earthquakes in Washington
  

Recent Earthquakes

• Last Earthquake in Washington
  from the NEIC Earthquake Bulletin
• PSN: Most Recent Notable Earthquake
  

Tectonic Information

• Earthquake Hazards in Washington and Oregon
  
• Washington State Earthquake Hazards
  

Topics

• FAQ: Earthquakes in Washington and Oregon
  
• Tsunami Information
  

USGS Information

• USGS Pacific Northwest Project
  
• USGS Geologic Information about Washington
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Significant Earthquakes

• M 5.8 VirginiaAugust 23, 2011 17:51:04 UTC
• M 5.3 ColoradoAugust 23, 2011 05:46:19 UTC
• M 4.6 ColoradoAugust 22, 2011 23:30:20 UTC
• M 7.0 VanuatuAugust 20, 2011 18:19:24 UTC
• M 7.1 VanuatuAugust 20, 2011 16:55:02 UTC
• All Significant Earthquakes