Is A Powerful Earthquake Likely to Strike in the Next 30 Years? USGS(04)

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Is A Powerful Earthquake Likely to Strike in the Next 30 Years? USGS(04)

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3.7 preliminary magnitude earthquake hits off coast of San FranciscoSan Francisco Shaken Earthquake Strikes, What You Need to Knowsan francisco earthquakeSafest City In California From Earthquakes at Jaimie Ramos blogIs A Powerful Earthquake Likely to Strike in the Next 30 Years? USGSEarthquake Warning Prompts Evacuations in San Francisco Newsweek