California earthquakes

M5.0 earthquake 13 km NNE of Mesa, California

A magnitude 5.0 earthquake struck 13 km NNE of Mesa, California on Tue, Jul 22, 1986, 6:48 AM PDT (13:48 UTC), 11 km (7 mi) below the surface.

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

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The earthquake

Magnitude: 5.0 (ml), moderate
Local time: Tue, Jul 22, 1986, 6:48 AM PDT
UTC: 1986-07-22 13:48:59 UTC
Depth: 10.7 km (6.6 mi), shallow
Epicenter: 37.526° N, 118.471° W
Region: California
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 0.3 km horizontally, 1.1 km in depth
Depth from: From location
Station coverage gap: 65°
Stations used: 34

Nearest places

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

Nearby

Within 100 km, magnitude 2.0 and up: 200 in the 60 days after this one and 0 in the 30 days before it.

After

The first 60 of 200.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc92934 (also filed as ushis3986, ci603020, usp0002wch). Read Tue, Sep 22, 2026, 11:33 PM UTC.