California earthquakes

M2.3 earthquake 12km W of Anza, CA

A magnitude 2.3 earthquake struck 12km W of Anza, CA on Tue, Feb 5, 1974, 6:48 PM PDT (01:48 UTC), 7 km (5 mi) below the surface.

A larger quake followed: M3.6 9km N of Borrego Springs, CA. This one was a foreshock.

Anza 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
2.3 (Mh), micro
Magnitude from
Southern California Seismic Network
Local time
UTC
1974-02-06 01:48:09 UTC
Depth
7.4 km (4.6 mi), shallow
Epicenter
33.554° N, 116.800° 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 3.4 km horizontally, 14.6 km in depth
Magnitude uncertainty
±0.15
Depth from
From location
Station coverage gap
206°, poorly surrounded by stations
Stations used
5

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 48 in the 60 days after this one and 33 in the 30 days before it.

After

Before

Earthquakes todayCalifornia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci3318621. Read Fri, Oct 2, 2026, 7:38 AM UTC.