UPDATE: 5 p.m. — According to a statement from the Mendocino County Sheriff’s Office posted to Facebook around 3:15 p.m., no damage has been identified so far as a result of today’s earthquake.
“Currently, MCSO Office of Emergency Services is working with local partners to identify any potential or hidden damages; however, no impacts have been identified at this time,” deputies wrote.
MENDOCINO Co., 12/20/21 — A magnitude 6.2 earthquake hit the North Coast west of Petrolia at 12:10 p.m., at a depth of 9.3 km, according to the United States Geological Survey (USGS), which has upgraded the quake’s measurement several times since the earthquake occurred, beginning with a preliminary magnitude of 5.2. The USGS information about the quake can be found on their website.
According to the National Weather Service, no tsunami is anticipated as a result of the offshore temblor.
Did you feel it or was there any damage? You can submit your felt reports to USGS at this webpage.
The Mendocino Voice staff received early warnings from the new statewide earthquake alert app several seconds before the shaking started. Have you downloaded the app, and did you receive a warning? You can read more about the new statewide early earthquake alert system here.

Just north of Willits. Long rolling rumble! Long! Cat was on my lap and woke up and jumped off! Biggest one in a while. I got the My Shake warning about a second before it hit. Interesting that it worked!
Ron
Felt it in Cleone, shook the house a bit……. got a warning just before.
Here in Potter Valley, I recieved the alert, then my house started swaying a bit.
One quick easr/west/east jolting of on wheels computer chiair,,ground floor..(concrete slab) in Ukiah in 400 Block of East Gobbi St near Orchard Ave. No damage.