U.S. Geological Survey map whos the location of the quake and aftershocks.

A magnitude 3.9 earthquake that struck Riverside County north of Borrego Springs was felt in many parts San Diego.

The quake hit at 7:19 p.m., according to the U.S. Geological Survey, and was followed by two smaller aftershocks.

The USGS said residents throughout coastal San Diego felt the quake, which occurred in the Anza-Borrego State Park.

No injuries or damage were immediately reported.

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Chris Jennewein

Chris Jennewein is Editor & Publisher of Times of San Diego.