The 3.7-magnitude quake occurred at 7:05 a.m. Saturday northwest of The Geysers, according to the US Geological Survey.
The survey said the quake was centered in Sonoma County, 3.8 miles west northwest of Cobb and 13.5 miles southwest of Clearlake, right under the earth’s surface.
That location places the quake in the Kincade fire footprint.
The US Geological Survey reported receiving 48 shake reports from around California. The most reports came from Kelseyville, as well as many from the Bay Area, and others from as far away as Monterey and King City.
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