California earthquakes

M2.2 earthquake 5km ENE of Calimesa, CA

A magnitude 2.2 earthquake struck 5km ENE of Calimesa, CA on Fri, Dec 17, 2021, 6:28 PM PST (02:28 UTC), 16 km (10 mi) below the surface.

A larger quake followed: M4.0 5km WSW of Palomar Observatory, CA. This one was a foreshock.

Cherry Valley forecastMore in California

Map

Where this earthquake was located, with the others nearby. Select one for its page.

Open the live map with earthquakes

The earthquake

Magnitude
2.2 (ML, local (Richter)), micro
Magnitude from
Southern California Seismic Network
Local time
UTC
2021-12-18 02:28:30 UTC
Depth
16.0 km (9.9 mi), shallow
Epicenter
34.002° N, 116.996° W
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 0.1 km horizontally, 0.3 km in depth
Magnitude uncertainty
±0.14
Depth from
From location
Station coverage gap
26°
Stations used
100

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 155 in the 60 days after this one and 43 in the 30 days before it.

After

The first 60 of 155.

Before

Earthquakes todayCalifornia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci40130000. Read Sun, Oct 4, 2026, 8:49 AM UTC.