How to resolve AdBlock issue? 
NORTHERN CALIFORNIA – A 3.1-magnitude earthquake occurred early Thursday near Angwin in neighboring Napa County.
The quake occurred at 12:23 a.m., according to a preliminary report from the US Geological Survey.
Its epicenter was located 9 miles north northeast of Angwin, 21 miles south southeast of Clearlake and 24 miles northeast of Santa Rosa, at a depth of nearly 7 miles, the US Geological Survey reported.
As of shortly before 2:30 a.m., shake reports had been submitted to the US Geological Survey from Angwin, Calistoga, Fairfax, Napa, Pope Valley, Saint Helena and Santa Rosa.
Email Elizabeth Larson at elarson@lakeconews.com . Follow her on Twitter, @ERLarson, or Lake County News, @LakeCoNews.