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CLEARLAKE OAKS, Calif. – Residents around the county reported feeling an early morning earthquake that was centered near Clearlake Oaks.
The U.S. Geological Survey said the 3.8-magnitude quake occurred at 4:11 a.m. at a depth of 1.9 miles.
It was centered four miles south southwest of Clearlake Oaks, four miles west northwest of Clearlake and six miles northwest of Lower Lake, the agency reported.
Several residents around the lake – from Clearlake Oaks to Kelseyville – reported feeling the quake, which was said to have lasted about five seconds.
By 9 a.m. the U.S. Geological Survey had received 233 shake reports from eight zip codes around Northern California, including Clearlake, Clearlake Oaks, Kelseyville, Lakeport, Lower Lake, Middletown, Hidden Valley Lake and Campbell. It also received a report from Sun Valley, Nev.
A 1.9-magnitude quake – originally reported as 2.0-magnitude temblor – was reported in the same spot at 4:29 a.m., according to U.S. Geological Record reports.
Regarding that second, smaller quake, a total of 19 shake reports were submitted from Clearlake, Clearlake Oaks, Kelseyville and Lower Lake, survey records showed.
Lake County is seismically active, although most of the earthquake action is reported on Cobb Mountain near The Geysers geothermal steamfield, where increased earthquake activity has been attributed to wastewater injection.
E-mail Elizabeth Larson at
