California earthquakes

M3.0 earthquake 8 km SE of Sunol, California

A magnitude 3.0 earthquake struck 8 km SE of Sunol, California on Sun, Jun 9, 1985, 5:57 PM PDT (00:57 UTC), 4 km (3 mi) below the surface.

A larger quake followed: M3.1 14 km N of Morgan Hill, 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
3.0 (ml), minor
Local time
UTC
1985-06-10 00:57:03 UTC
Depth
4.5 km (2.8 mi), shallow
Epicenter
37.535° N, 121.822° 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
Depth from
From location
Station coverage gap
29°
Stations used
81

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 92 in the 60 days after this one and 45 in the 30 days before it.

After

The first 60 of 92.

Before

Earthquakes todayCalifornia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc49230 (also filed as usp0002fq2). Read Tue, Sep 22, 2026, 7:50 PM UTC.