COBB, Calif. – A 3.5-magnitude earthquake just inside the Sonoma County border shook the Cobb and Kelseyville areas on Thursday afternoon.

The quake was reported at 3:27 p.m. Thursday near Bear Canyon in northern Sonoma County, according to the US Geological Survey.

The quake was centered Thursday afternoon early near Cobb 4.6 miles west-northwest of Cobb, 12.9 miles southwest of Clearlake and 15.8 miles north northeast of Healdsburg at a depth of 1.6 miles, the survey reported.

The survey reported receiving shake reports from Kelseyville and Middletown in Lake County, as well as from Mendocino, Napa, Sonoma, San Francisco and Santa Clara counties.

The US Geological Survey reported that a 3.7-magnitude quake occurred in Lake County, 3.5 miles west-northwest of Cobb, just after 10:34 a.m. Wednesday.

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