California earthquakes

M4.2 earthquake 25km NW of Buttonwillow, CA

A magnitude 4.2 earthquake struck 25km NW of Buttonwillow, CA on Sun, Feb 21, 1988, 11:43 PM PST (07:43 UTC), 5 km (3 mi) below the surface.

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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
4.2 (ml), light
Local time
UTC
1988-02-22 07:43:13 UTC
Depth
5.1 km (3.2 mi), shallow
Epicenter
35.546° N, 119.676° 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
52°
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: 56 in the 60 days after this one and 25 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci743909 (also filed as usp0003d8f). Read Wed, Sep 30, 2026, 12:24 AM UTC.