CLEARLAKE OAKS, Calif. – A Tuesday night earthquake near Clearlake Oaks and Clearlake jolted some local residents.

A preliminary report from the United States Geological Survey said the quake, which occurred at 11:30 p.m., measured 3.1 on the Richter Scale.

The initial magnitude could be adjusted later upon review by a seismologist.

The quake, which occurred just under the earth's surface – the depth was listed as zero kilometers – was centered five miles east of Clearlake Oaks, five miles northeast of Clearlake and seven miles north northeast of Lower Lake, the survey reported.

Lake County News received reports via email and Facebook from residents who felt the quake, which woke a few of them up.

A 3.8-magnitude earthquake was reported four miles from Clearlake Oaks and Clearlake on the morning of Jan. 24, as Lake County News has reported.

E-mail Elizabeth Larson at This email address is being protected from spambots. You need JavaScript enabled to view it. .