The quake occurred at 1:53 a.m., according to the US Geological Survey.
It was centered six miles west of Lakeport and 12 miles southeast of Ukiah at a depth of 2.9 miles, the agency reported.
Twenty-four shake reports from five zip codes – Lakeport, Hopland, Ukiah, Forestville and Martinez – had been submitted to the survey by 2:30 a.m.
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