California earthquakes

M1.9 earthquake 15km NW of Grapevine, CA

A magnitude 1.9 earthquake struck 15km NW of Grapevine, CA on Mon, Dec 8, 1986, 3:55 PM PST (23:55 UTC), 12 km (7 mi) below the surface.

A larger quake followed: M2.2 13km SE of Santa Ynez, CA. This one was a foreshock.

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Map

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

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The earthquake

Magnitude
1.9 (mc), micro
Local time
UTC
1986-12-08 23:55:05 UTC
Depth
12.1 km (7.5 mi), shallow
Epicenter
35.019° N, 119.064° 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
123°
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: 64 in the 60 days after this one and 27 in the 30 days before it.

After

The first 60 of 64.

Before

Earthquakes todayCalifornia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci714354. Read Tue, Sep 22, 2026, 10:26 AM UTC.