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Mild Earthquake Rattles Northern California Seafloor
Map of Aug. 9 Northern California quake, which hit offshore.
Credit: USGS.

A minor earthquake rumbled offshore in Northern California today. The preliminary magnitude was 4.3, according to the U.S. Geological Survey. It's likely that residents didn't feel any shaking, according to USGS maps. Details from the USGS:


Thursday, August 09, 2012 at 15:24:24 UTC

Thursday, August 09, 2012 at 08:24:24 AM at epicenter

Location: 40.757°N, 125.217°W

Depth: 2.5 km (1.6 miles) (poorly constrained)

Distances from epicenter:

83 km (52 miles) WNW (284°) from Ferndale, CA

85 km (53 miles) W (272°) from Humboldt Hill, CA

87 km (54 miles) W (270°) from Bayview, CA

89 km (55 miles) W (268°) from Eureka, CA

This page will be updated if the event proves significant.