California earthquakes

M1.5 earthquake 30km W of Olancha, CA

A magnitude 1.5 earthquake struck 30km W of Olancha, CA on Mon, Jul 22, 1985, 7:02 AM PDT (14:02 UTC), 4 km (3 mi) below the surface.

A larger quake followed: M1.6 7km NNW of Olancha, CA. This one was a foreshock.

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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
1.5 (mc), micro
Local time
UTC
1985-07-22 14:02:37 UTC
Depth
4.1 km (2.5 mi), shallow
Epicenter
36.276° N, 118.337° 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
From location
Station coverage gap
299°, 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: 88 in the 60 days after this one and 39 in the 30 days before it.

After

The first 60 of 88.

Before

Earthquakes todayCalifornia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci71349. Read Tue, Sep 22, 2026, 10:31 PM UTC.