M2.3 earthquake 18km NNW of Grapevine, CA

A magnitude 2.3 earthquake struck 18km NNW of Grapevine, CA on Wed, Sep 28, 1983, 2:48 AM PDT (09:48 UTC), 18 km (11 mi) below the surface.

A larger quake followed: M3.2 17km NNW of Grapevine, CA. This one was a foreshock.

Map

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

No one has reported feeling this quake to the USGS.

Reviewed by a seismologist.

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

Within 100 km, magnitude 1.5 and up: 117 in the 60 days after this one and 70 in the 30 days before it.

The first 60 of 117.

From the USGS Earthquake Hazards Program and its partner networks, event ci16036. Read Wed, Sep 30, 2026, 9:06 PM UTC.