California earthquakes

M2.9 earthquake 41km E of Big Pine, CA

A magnitude 2.9 earthquake struck 41km E of Big Pine, CA on Sat, Apr 18, 1987, 10:55 PM PDT (05:55 UTC), 4 km (3 mi) below the surface.

A larger quake followed: M3.7 24km NE of Olancha, CA. This one was a foreshock.

Big Pine forecastMore in California

Map

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

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The earthquake

Magnitude
2.9 (mc), micro
Local time
UTC
1987-04-19 05:55:53 UTC
Depth
4.2 km (2.6 mi), shallow
Epicenter
37.136° N, 117.825° 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
Operator assigned
Station coverage gap
197°, poorly surrounded by stations
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: 174 in the 60 days after this one and 25 in the 30 days before it.

After

The first 60 of 174.

Before

Earthquakes todayCalifornia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci720877. Read Tue, Sep 22, 2026, 10:25 PM UTC.