California earthquakes

M2.9 earthquake 25 km WNW of Three Rocks, California

A magnitude 2.9 earthquake struck 25 km WNW of Three Rocks, California on Thu, Nov 8, 1984, 12:02 AM PST (08:02 UTC), 13 km (8 mi) below the surface.

A larger quake followed: M3.3 17 km NNW of Coalinga, 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
2.9 (md), micro
Local time
UTC
1984-11-08 08:02:50 UTC
Depth
13.2 km (8.2 mi), shallow
Epicenter
36.548° N, 120.673° 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 0.2 km horizontally, 0.6 km in depth
Magnitude uncertainty
±0.20
Depth from
From location
Station coverage gap
63°
Stations used
59

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 188 in the 60 days after this one and 6 in the 30 days before it.

After

The first 60 of 188.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc31474 (also filed as ci53802). Read Tue, Sep 22, 2026, 10:26 PM UTC.