California earthquakes

M2.7 earthquake 22 km ENE of Soledad, California

A magnitude 2.7 earthquake struck 22 km ENE of Soledad, California on Wed, Apr 9, 1975, 8:32 AM PDT (15:32 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M2.9 24 km ENE of Greenfield, California. This one was a foreshock.

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Map

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

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The earthquake

Magnitude
2.7 (md), micro
Local time
UTC
1975-04-09 15:32:30 UTC
Depth
9.9 km (6.2 mi), shallow
Epicenter
36.529° N, 121.106° 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 0.3 km horizontally, 0.6 km in depth
Magnitude uncertainty
±0.39
Depth from
From location
Station coverage gap
62°
Stations used
25

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 194 in the 60 days after this one and 0 in the 30 days before it.

After

The first 60 of 194.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1023479. Read Tue, Sep 22, 2026, 10:33 PM UTC.