Seismometer information details: Magnitude 2.5, San Francisco Bay area, California
Wednesday, September 28, 2011 04:11:51 UTC
Tuesday, September 27, 2011 09:11:51 PM at epicenter
Depth: 6.40 km (3.98 mi), Average earthquake depth.
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Read more about Date-Time, Location, Distances, Parameters at USGS.