LAKE COUNTY, Calif. — A 4.4-magnitude earthquake that occurred just inside the Sonoma County line on Tuesday night was reported by residents around Lake County and beyond, and was followed by some strong aftershocks.
The U.S. Geological Survey reported that the earthquake occurred at 10:39 p.m. 4.6 miles west northwest of Cobb, at a depth of six tenths of a mile, just inside the Sonoma County line.
Many people, including this reporter, were alerted to the quake through a U.S. Geological Survey ShakeAlert on smartphones that said, “Emergency alert: Severe. Earthquake Detected! Drop, Cover, Hold On, Protect Yourself.”
“Wheeeee that was a fun shake,” Cobb resident Matt Smith wrote on Lake County News’ Facebook page.
Residents of other parts of the county — including Clearlake, Cobb, Glenhaven, Hidden Valley Lake, Kelseyville, Lucerne, Lakeport and Middletown — reported on social media that they also had felt the quake, and that it was powerful and “a doozy.”
It was followed by a 2.8-magnitude aftershock, one that was 2.5 in magnitude and a 3.3-magnitude quake, all in Sonoma County, and a 2.5-magnitude quake in Lake County, west northwest of Cobb.
As of 3 a.m. Wednesday, approximately 678 shake reports had been submitted to the U.S. Geological Survey from around Lake, Mendocino, Napa and Sonoma counties, the Bay Area, Folsom, Truckee and Glenbrook, Nevada.
Earlier on Tuesday, shortly after 4 p.m., there had been a 2.5-magnitude earthquake that occurred near Lake Pillsbury and due north of the area where the earthquakes near Cobb took place.
Shake reports can be made here.
Email Elizabeth Larson at This email address is being protected from spambots. You need JavaScript enabled to view it.. Follow her on Twitter, @ERLarson, or Lake County News, @LakeCoNews.
Sizable quake shakes south county; several aftershocks reported
- Elizabeth Larson
- Posted On