California earthquakes

M2.1 earthquake 9 km ENE of Gilroy, California

A magnitude 2.1 earthquake struck 9 km ENE of Gilroy, California on Fri, Nov 2, 1979, 6:19 PM PST (02:19 UTC), 8 km (5 mi) below the surface.

A larger quake followed: M2.2 41 km W of Three Rocks, California. This one was a foreshock.

Gilroy forecastMore in California

Map

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

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The earthquake

Magnitude
2.1 (md), micro
Local time
UTC
1979-11-03 02:19:12 UTC
Depth
8.0 km (4.9 mi), shallow
Epicenter
37.026° N, 121.468° 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, 0.6 km in depth
Magnitude uncertainty
±0.07
Depth from
From location
Station coverage gap
67°
Stations used
24

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 181 in the 60 days after this one and 0 in the 30 days before it.

After

The first 60 of 181.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1048608. Read Tue, Sep 22, 2026, 4:04 PM UTC.