California earthquakes

M2.7 earthquake 15km NW of Coso Junction, CA

A magnitude 2.7 earthquake struck 15km NW of Coso Junction, CA on Mon, Feb 12, 1973, 6:31 AM PST (14:31 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M3.1 17km N of Kernville, CA. 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 (ml), micro
Local time
UTC
1973-02-12 14:31:27 UTC
Depth
6.0 km (3.7 mi), shallow
Epicenter
36.134° N, 118.072° 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 0.6 km horizontally, 31.6 km in depth
Magnitude uncertainty
±0.13
Depth from
Operator assigned
Station coverage gap
138°
Stations used
4

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 8 in the 60 days after this one and 4 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci3320321. Read Tue, Sep 22, 2026, 9:18 PM UTC.