5.1 quake hits Southern California

EL CENTRO, Calif. (AP) - An estimated 5.1-magnitude earthquake near the California-Mexico border has shaken a wide area of Southern California including San Diego.

The U.S. Geological Survey's automated seismic reporting system said the quake struck at 5:38 p.m. PDT Tuesday and was centered 18 miles west-southwest of El Centro in the state's southeastern corner.

The area has been shaking with aftershocks since a 7.2 quake that struck northern Baja California on April 4.

Imperial County Sheriff's Department dispatcher Veronica Marron says the quake was strongly felt but there have been no immediate reports of damage.
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