California earthquakes

M1.9 earthquake 30 km W of Three Rocks, California

A magnitude 1.9 earthquake struck 30 km W of Three Rocks, California on Sat, Jan 10, 1987, 5:52 PM PST (01:52 UTC), 2 km (1 mi) below the surface.

A larger quake followed: M2.1 3 km SSE of Kettleman City, California. This one was a foreshock.

King City forecastMore in California

Map

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

Open the live map with earthquakes

The earthquake

Magnitude
1.9 (md), micro
Local time
UTC
1987-01-11 01:52:18 UTC
Depth
1.9 km (1.2 mi), shallow
Epicenter
36.453° N, 120.721° 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, 1.0 km in depth
Magnitude uncertainty
±0.10
Depth from
From location
Station coverage gap
172°
Stations used
19

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 194 in the 60 days after this one and 0 in the 30 days before it.

After

The first 60 of 194.

Earthquakes todayCalifornia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc92307. Read Tue, Sep 22, 2026, 7:23 AM UTC.