California earthquakes

M1.6 earthquake 17km WSW of Olancha, CA

A magnitude 1.6 earthquake struck 17km WSW of Olancha, CA on Fri, Nov 8, 1985, 4:12 AM PST (12:12 UTC), 4 km (3 mi) below the surface.

A larger quake followed: M1.8 36km WSW 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
1985-11-08 12:12:53 UTC
Depth
4.2 km (2.6 mi), shallow
Epicenter
36.236° N, 118.191° 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
241°, 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: 102 in the 60 days after this one and 44 in the 30 days before it.

After

The first 60 of 102.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci131256. Read Tue, Sep 22, 2026, 11:21 AM UTC.