California earthquakes

M2.4 earthquake 13 km SSE of Mammoth Lakes, California

A magnitude 2.4 earthquake struck 13 km SSE of Mammoth Lakes, California on Sun, Jun 20, 1982, 5:44 AM PDT (12:44 UTC), -1 km (-1 mi) below the surface.

A larger quake followed: M2.6 5 km WNW of Aspen Springs, 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: 2.4 (md), micro
Local time: Sun, Jun 20, 1982, 5:44 AM PDT
UTC: 1982-06-20 12:44:40 UTC
Depth: -1.4 km (-0.9 mi), shallow
Epicenter: 37.547° N, 118.892° 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 0.5 km horizontally, 3.4 km in depth
Magnitude uncertainty: ±0.15
Depth from: From location
Station coverage gap: 122°
Stations used: 8

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 198 in the 60 days after this one and 0 in the 30 days before it.

After

The first 60 of 198.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1075512. Read Tue, Sep 22, 2026, 10:33 PM UTC.