California earthquakes

M1.5 earthquake 28 km SW of Scotia, California

A magnitude 1.5 earthquake struck 28 km SW of Scotia, California on Tue, Sep 7, 1982, 7:40 AM PDT (14:40 UTC), 20 km (13 mi) below the surface.

A larger quake followed: M3.3 62 km WNW of Indianola, California. This one was a foreshock.

Scotia forecastMore in California

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
1.5 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1982-09-07 14:40:33 UTC
Depth
20.4 km (12.7 mi), shallow
Epicenter
40.300° N, 124.334° 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 1.5 km horizontally, 0.6 km in depth
Magnitude uncertainty
±0.14
Depth from
From location
Station coverage gap
227°, poorly surrounded by stations
Stations used
9

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 109 in the 60 days after this one and 62 in the 30 days before it.

After

The first 60 of 109.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1078645. Read Sun, Oct 4, 2026, 6:30 AM UTC.