California earthquakes

M2.4 earthquake 16km ESE of Buttonwillow, CA

A magnitude 2.4 earthquake struck 16km ESE of Buttonwillow, CA on Thu, Jul 17, 1986, 10:40 PM PDT (05:40 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M2.6 22km NNW of Fillmore, 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
2.4 (mc), micro
Local time
UTC
1986-07-18 05:40:02 UTC
Depth
4.9 km (3.0 mi), shallow
Epicenter
35.324° N, 119.324° 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
120°
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: 44 in the 60 days after this one and 19 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci703050. Read Sun, Sep 27, 2026, 7:07 PM UTC.