California earthquakes

M2.5 earthquake 8 km ENE of Gilroy, California

A magnitude 2.5 earthquake struck 8 km ENE of Gilroy, California on Thu, Jun 18, 1981, 5:11 PM PDT (00:11 UTC), 8 km (5 mi) below the surface.

A larger quake followed: M4.2 2 km ESE of Tres Pinos, 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
2.5 (md), micro
Local time
UTC
1981-06-19 00:11:06 UTC
Depth
8.3 km (5.2 mi), shallow
Epicenter
37.043° N, 121.478° 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 0.1 km horizontally, 0.3 km in depth
Magnitude uncertainty
±0.15
Depth from
From location
Station coverage gap
33°
Stations used
84

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 80 in the 30 days before it.

After

The first 60 of 181.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1064654. Read Wed, Sep 30, 2026, 7:55 PM UTC.