California earthquakes

M1.9 earthquake 7km WSW of Garnet, CA

A magnitude 1.9 earthquake struck 7km WSW of Garnet, CA on Sat, Sep 16, 1978, 11:02 PM PDT (06:02 UTC), 14 km (8 mi) below the surface.

A larger quake followed: M3.2 23km SSE of Ludlow, CA. 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 (Mh), micro
Magnitude from
Southern California Seismic Network
Local time
UTC
1978-09-17 06:02:02 UTC
Depth
13.6 km (8.4 mi), shallow
Epicenter
33.870° N, 116.611° 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 0.3 km horizontally, 0.6 km in depth
Magnitude uncertainty
±0.41
Depth from
From location
Station coverage gap
39°
Stations used
29

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 161 in the 60 days after this one and 122 in the 30 days before it.

After

The first 60 of 161.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci3313445. Read Fri, Oct 2, 2026, 9:28 AM UTC.