The 3.4-magnitude quake occurred at 7:04 a.m., according to the US Geological Survey.
The survey said the quake was centered 1.4 miles north northeast of Seigler Springs and 5.4 miles southwest of Clearlake, at a depth of six tenths of a mile.
There were 219 shake reports submitted. In addition to Lower Lake, locally reports came from Clearlake, Clearlake Oaks, Glenhaven, Hidden Valley Lake, Kelseyville, Lucerne, Middletown; the quake was reported at highest intensity in Glenhaven, Lower Lake and Middletown.
Shake reports also came from Napa, Sonoma, Folsom, Fontana and Walnut Creek, and as far away as Junction City, Oregon.
Two other smaller quakes were reported on Sunday morning in the Lower Lake area: a 2.3-magnitude at 1:47 a.m. and a 1.3-magnitude quake at 9:27 a.m., according to US Geological Survey records.
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