California earthquakes

M3.1 earthquake 2 km SSW of Aromas, California

A magnitude 3.1 earthquake struck 2 km SSW of Aromas, California on Wed, Aug 1, 1973, 10:44 PM PDT (05:44 UTC), 7 km (4 mi) below the surface.

A larger quake followed: M3.3 19 km NE of Soledad, California. 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
3.1 (ml), minor
Local time
UTC
1973-08-02 05:44:44 UTC
Depth
7.0 km (4.3 mi), shallow
Epicenter
36.863° N, 121.650° 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.

Stations used
8

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 1 in the 60 days after this one and 1 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp00002yn. Read Mon, Sep 28, 2026, 12:21 AM UTC.