Preliminary 4.2 Magnitude Earthquake Strikes in Northern Sonoma County

A map shows the epicenter of a preliminary 4.2 magnitude earthquake in northern Sonoma County.

A preliminary 4.2 magnitude earthquake struck late Monday morning in northern Sonoma County, near the Lake County line, according to the United States Geological Survey.

The quake hit at 11:50 a.m. and was centered 4.7 miles south of Cobb, 12.7 miles northeast of Healdsburg and 14.9 miles south-southwest of Clearlake, the USGS said.

No other information was immediately available.

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