California earthquakes

M2.1 earthquake 15km NW of Grapevine, CA

A magnitude 2.1 earthquake struck 15km NW of Grapevine, CA on Mon, Jan 3, 1983, 1:20 AM PST (09:20 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M3.7 13km W of Wofford Heights, 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
2.1 (Mc), micro
Magnitude from
Southern California Seismic Network
Local time
UTC
1983-01-03 09:20:32 UTC
Depth
4.8 km (3.0 mi), shallow
Epicenter
35.027° N, 119.056° 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 0.6 km horizontally, 15.0 km in depth
Depth from
From location
Station coverage gap
123°
Stations used
11

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 75 in the 60 days after this one and 14 in the 30 days before it.

After

The first 60 of 75.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci501198. Read Sat, Oct 3, 2026, 12:39 PM UTC.