California earthquakes

M3.4 earthquake 2 km NNW of Fields Landing, California

A magnitude 3.4 earthquake struck 2 km NNW of Fields Landing, California on Tue, Jul 2, 1985, 4:56 PM PDT (23:56 UTC), 7 km (4 mi) below the surface.

A larger quake followed: M3.6 85 km W of Ferndale, California. 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
3.4 (ml), minor
Local time
UTC
1985-07-02 23:56:10 UTC
Depth
6.7 km (4.2 mi), shallow
Epicenter
40.743° N, 124.225° 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 0.7 km horizontally, 0.9 km in depth
Depth from
From location
Station coverage gap
182°, poorly surrounded by stations
Stations used
12

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 51 in the 60 days after this one and 15 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc51166 (also filed as usp0002gbw). Read Thu, Sep 24, 2026, 5:10 AM UTC.