California earthquakes

M2.3 earthquake 10km WNW of Camp Pendleton North, CA

A magnitude 2.3 earthquake struck 10km WNW of Camp Pendleton North, CA on Wed, Jul 12, 1933, 5:40 PM GMT-8 (01:40 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M2.6 9km NW of Camp Pendleton North, CA. This one was a foreshock.

Camp Pendleton North forecast More in California

Map

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

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The earthquake

Magnitude: 2.3 (mh), micro
Local time: Wed, Jul 12, 1933, 5:40 PM GMT-8
UTC: 1933-07-13 01:40:51 UTC
Depth: 6.0 km (3.7 mi), shallow
Epicenter: 33.340° N, 117.421° W
Region: California
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.

Magnitude uncertainty: ±0.03
Depth from: Operator assigned
Station coverage gap: 360°, poorly surrounded by stations
Stations used: 0

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 100 in the 60 days after this one and 51 in the 30 days before it.

After

The first 60 of 100.

Before

Earthquakes today California earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci3360899. Read Tue, Sep 22, 2026, 8:46 PM UTC.