California earthquakes

M2.0 earthquake 2 km WSW of Round Valley, California

A magnitude 2.0 earthquake struck 2 km WSW of Round Valley, California on Mon, Nov 18, 1985, 9:49 PM PST (05:49 UTC), 11 km (7 mi) below the surface.

A larger quake followed: M2.8 1 km SSW of Round Valley, California. 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
2.0 (md), micro
Local time
UTC
1985-11-19 05:49:53 UTC
Depth
10.8 km (6.7 mi), shallow
Epicenter
37.413° N, 118.611° 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.

Location uncertainty
About 0.8 km horizontally, 1.4 km in depth
Magnitude uncertainty
±0.21
Depth from
From location
Station coverage gap
85°
Stations used
18

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 122 in the 60 days after this one and 65 in the 30 days before it.

After

The first 60 of 122.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc59517 (also filed as ci132132). Read Tue, Sep 22, 2026, 8:55 PM UTC.