California earthquakes

M1.9 earthquake 33 km WNW of Three Rocks, California

A magnitude 1.9 earthquake struck 33 km WNW of Three Rocks, California on Wed, Jun 25, 1980, 1:56 PM PDT (20:56 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M3.3 15 km SW of Lockwood, 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
1.9 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1980-06-25 20:56:21 UTC
Depth
10.1 km (6.3 mi), shallow
Epicenter
36.569° N, 120.760° 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 0.9 km horizontally, 1.2 km in depth
Magnitude uncertainty
±0.18
Depth from
From location
Station coverage gap
209°, poorly surrounded by stations
Stations used
10

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 124 in the 60 days after this one and 81 in the 30 days before it.

After

The first 60 of 124.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1054021. Read Fri, Oct 2, 2026, 7:25 AM UTC.