California earthquakes

M1.9 earthquake 22km ESE of Anza, CA

A magnitude 1.9 earthquake struck 22km ESE of Anza, CA on Fri, Sep 27, 1985, 3:55 AM PDT (10:55 UTC), 13 km (8 mi) below the surface.

A larger quake followed: M4.6 3km SSE of Loma Linda, CA. This one was a foreshock.

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

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The earthquake

Magnitude
1.9 (mc), micro
Local time
UTC
1985-09-27 10:55:18 UTC
Depth
12.8 km (8.0 mi), shallow
Epicenter
33.480° N, 116.454° 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.

Depth from
From location
Station coverage gap
57°
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: 192 in the 60 days after this one and 185 in the 30 days before it.

After

The first 60 of 192.

Before

Earthquakes todayCalifornia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci120549. Read Tue, Sep 29, 2026, 9:56 PM UTC.