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San Diego County lightly shaken Wednesday by onshore and offshore earthquakes

The temblors were part of normal seismicity in Southern California

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Parts of San Diego County were briefly and lightly shaken on Wednesday by a pair of small earthquakes, one which originated offshore and the other which occurred in the desert, according to the U.S. Geological Survey.

At 3:28 a.m. a magnitude 3.6 quake occurred roughly 3.7 miles beneath the seafloor, at a spot 61 miles west-southwest of La Jolla. The temblor happened near the San Clemente fault system, southeast of San Clemente Island.

That was followed at 9:01 a.m. by a 3.3 quake that broke 5 miles north-northeast of Borrego Springs, in the vicinity of the San Jacinto fault system.

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Seismologists say that such shaking is normal in Southern California and rarely leads to a significantly larger event.

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