5.3 earthquake shakes Northern California

An earthquake with a preliminary magnitude of 5.3 struck in the Pacific Ocean about 45 miles west-northwest of Petrolia, at 11:21 p.m. Saturday, the U.S. Geological Survey said.   

The quake was measured at a depth of about 0.25 mile.   

According to the U.S. Geological Survey, people typically report feeling earthquakes larger than about magnitude 2.5.

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