Updated

A flurry of small earthquakes struck Southern California’s Imperial County Sunday along the U.S.-Mexico border, the U.S. Geological Survey reports.

A magnitude 3.9 earthquake first hit the region shortly after 10 a.m., the Los Angeles Times reports, citing the USGS.

More than a dozen earthquakes ranging from magnitude 2.0 to 5.4 followed over the next three hours.

No injuries or damage have been reported, authorities told the Los Angeles Times.

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