California earthquakes

M1.8 earthquake 2km SE of Carson, CA

A magnitude 1.8 earthquake struck 2km SE of Carson, CA on Fri, Oct 6, 1933, 12:35 AM GMT-8 (08:35 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M2.6 7km SSW of Avalon, CA. This one was a foreshock.

Carson forecastMore in California

Map

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

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The earthquake

Magnitude
1.8 (mh), micro
Local time
UTC
1933-10-06 08:35:00 UTC
Depth
6.0 km (3.7 mi), shallow
Epicenter
33.814° N, 118.266° 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.

Magnitude uncertainty
±0.31
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: 102 in the 60 days after this one and 91 in the 30 days before it.

After

The first 60 of 102.

Before

Earthquakes todayCalifornia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci3361494. Read Tue, Sep 22, 2026, 8:36 PM UTC.