NORTH COAST, Calif. – A 3.4-magnitude earthquake shook the Cobb area on Tuesday evening.

The US Geological Survey reported that the quake occurred at 8:04 p.m. Tuesday.

It was centered five and a half miles west northwest of Cobb, just inside the Sonoma County border, and 13.3 miles southwest of Clearlake at a depth of six-tenths of a mile, the survey reported.

By early Wednesday, the survey had received 16 shake reports from areas including Kelseyville, Geyserville, Middletown, Healdsburg, St. Helena, Yountville and Clayton.

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