The US Geological Survey said the quake occurred at 8:20 a.m. and was centered six miles north northeast of Ukiah, seven miles north of Talmage and 15 miles west northwest of Upper Lake, at a depth of 4.9 miles.
The survey reported receiving 251 shake reports from 12 zip codes around the North Coast and the Bay Area, with residents in Lakeport and Upper Lake among them.
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