California earthquakes

M1.6 earthquake 17km ENE of Coso Junction, CA

A magnitude 1.6 earthquake struck 17km ENE of Coso Junction, CA on Thu, Oct 17, 1985, 11:00 PM PDT (06:00 UTC), 4 km (3 mi) below the surface.

A larger quake followed: M1.8 17km NNE 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
1.6 (mc), micro
Local time
UTC
1985-10-18 06:00:33 UTC
Depth
4.0 km (2.5 mi), shallow
Epicenter
36.128° N, 117.785° 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
240°, 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: 118 in the 60 days after this one and 25 in the 30 days before it.

After

The first 60 of 118.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci124621. Read Tue, Sep 22, 2026, 4:09 PM UTC.