A 3.1 magnitude earthquake hit Stanislaus County on Wednesday night.

The quake happened at about 9:18 p.m. about 21.5 miles southwest of Patterson, according to the U.S. Geological Survey.

No injuries were reported.

The epicenter was 1.3 miles southwest of the Ortigalita fault zone, which is located along the eastern edge of the Diablo mountain range, according to the USGS fault database. 

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This article originally published at Magnitude 3.1 earthquake strikes Northern California.