California earthquakes

M2.5 earthquake 10 km SW of Spring Garden, California

A magnitude 2.5 earthquake struck 10 km SW of Spring Garden, California on Sat, Jun 6, 1981, 12:05 PM PDT (19:05 UTC), -1 km (0 mi) below the surface.

A larger quake followed: M2.7 5 km SSW of Truckee, 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: 2.5 (md), micro
Local time: Sat, Jun 6, 1981, 12:05 PM PDT
UTC: 1981-06-06 19:05:17 UTC
Depth: -0.5 km (-0.3 mi), shallow
Epicenter: 39.820° N, 120.865° W
Region: California
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 2.6 km horizontally, 3.7 km in depth
Magnitude uncertainty: ±0.06
Depth from: From location
Station coverage gap: 298°, poorly surrounded by stations
Stations used: 13

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 41 in the 60 days after this one and 14 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1064298. Read Tue, Sep 22, 2026, 9:39 PM UTC.