The quake, which occurred at 4:49 a.m., was centered 11 miles southeast of Lake Pillsbury, 25 miles east northeast of Ukiah and 25 miles north northwest of Clearlake, according to the US Geological Survey.
Survey records showed the quake occurred at a depth of 9.1 miles.
As of Saturday night, no shake reports for the quake had been submitted to the US Geological Survey.
A 3.0-magnitude earthquake occurred 10 miles southeast of Lake Pillsbury on July 30, and a 3.4-magnitude quake took place 11 miles northwest of the lake on July 27, as Lake County News has reported.
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