California earthquakes

M2.3 earthquake 18km NNW of Grapevine, CA

A magnitude 2.3 earthquake struck 18km NNW of Grapevine, CA on Thu, Aug 11, 1983, 12:06 PM PDT (19:06 UTC), 15 km (9 mi) below the surface.

A larger quake followed: M3.1 7km WSW of Bodfish, 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
2.3 (Mc), micro
Magnitude from
Southern California Seismic Network
Local time
UTC
1983-08-11 19:06:42 UTC
Depth
15.1 km (9.4 mi), shallow
Epicenter
35.097° N, 118.995° 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.

Depth from
From location
Station coverage gap
0°
Stations used
0

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 127 in the 60 days after this one and 57 in the 30 days before it.

After

The first 60 of 127.

Before

Earthquakes todayCalifornia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci16354. Read Sat, Oct 3, 2026, 5:43 PM UTC.