California earthquakes

M2.3 earthquake 15 km NE of Mesa, California

A magnitude 2.3 earthquake struck 15 km NE of Mesa, California on Wed, Mar 11, 1987, 4:12 AM PST (12:12 UTC), 8 km (5 mi) below the surface.

A larger quake followed: M2.4 30 km ENE of Lee Vining, 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
2.3 (md), micro
Local time
UTC
1987-03-11 12:12:47 UTC
Depth
8.1 km (5.0 mi), shallow
Epicenter
37.532° N, 118.434° 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 0.2 km horizontally, 0.4 km in depth
Magnitude uncertainty
±0.24
Depth from
From location
Station coverage gap
54°
Stations used
41

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 nc96482 (also filed as ci718656). Read Tue, Sep 22, 2026, 5:28 PM UTC.