Earthquake Hazards Program

Latest Earthquakes

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Significant Earthquakes Past 30 Days

Featured Items

• Reflecting on 2015 Natural Hazards

  

  Reflecting on the natural hazards of 2015 serves as a reminder of the dangers we face and the need for preparedness to save lives and property.

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• M6 South Napa, California Earthquake – August 24, 2014: What We Know After One Year

  

  In the wee hours of Sunday morning at 3:20am, the residents and wineries of Napa Valley were shaken by a magnitude 6.0 earthquake, the largest in the San Francisco Bay Area in over 25 years, and the first since the M7.9 1906 earthquake to rupture on the surface. This article describes what USGS (and USGS-funded) scientists have learned from the data one year after the earthquake.

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• Earthquake Hazard Posed by the Hosgri Fault

  

  USGS research geologist Sam Johnson of the Pacific Coastal and Marine Science Center was quoted in an Associated Press story and a subsequent radio interview about the Hosgri fault, which is being evaluated for the shaking hazard it might pose to the Diablo Canyon nuclear power plant, about 200 miles up the California coast from Los Angeles.

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