California earthquakes

M2.8 earthquake 5 km WSW of Moskowite Corner, California

A magnitude 2.8 earthquake struck 5 km WSW of Moskowite Corner, California on Sun, Jul 11, 1982, 4:19 PM PDT (23:19 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M3.0 4 km SE of Clear Lake Riviera, 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: 2.8 (md), micro
Local time: Sun, Jul 11, 1982, 4:19 PM PDT
UTC: 1982-07-11 23:19:12 UTC
Depth: 10.2 km (6.3 mi), shallow
Epicenter: 38.432° N, 122.254° 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 0.3 km horizontally, 0.6 km in depth
Magnitude uncertainty: ±0.18
Depth from: From location
Station coverage gap: 116°
Stations used: 42

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 125 in the 60 days after this one and 46 in the 30 days before it.

After

The first 60 of 125.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1076146. Read Tue, Sep 22, 2026, 8:47 PM UTC.