California earthquakes

M2.9 earthquake 11 km ESE of Gilroy, California

A magnitude 2.9 earthquake struck 11 km ESE of Gilroy, California on Sun, Jun 3, 1984, 12:21 AM PDT (07:21 UTC), 4 km (3 mi) below the surface.

A larger quake followed: M3.0 3 km W of Portola Valley, California. 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
2.9 (md), micro
Local time
UTC
1984-06-03 07:21:57 UTC
Depth
4.3 km (2.6 mi), shallow
Epicenter
36.958° N, 121.453° 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
±0.11
Depth from
From location
Station coverage gap
27°
Stations used
87

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 173 in the 60 days after this one and 0 in the 30 days before it.

After

The first 60 of 173.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc20020. Read Tue, Sep 22, 2026, 10:31 PM UTC.