California earthquakes

M1.6 earthquake 21 km NE of Soledad, California

A magnitude 1.6 earthquake struck 21 km NE of Soledad, California on Wed, Jun 3, 1987, 8:18 AM PDT (15:18 UTC), 2 km (1 mi) below the surface.

A larger quake followed: M2.7 13 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
1.6 (md), micro
Local time
UTC
1987-06-03 15:18:08 UTC
Depth
2.2 km (1.4 mi), shallow
Epicenter
36.580° N, 121.178° 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 0.2 km horizontally, 0.3 km in depth
Magnitude uncertainty
±0.16
Depth from
From location
Station coverage gap
85°
Stations used
15

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 126 in the 60 days after this one and 56 in the 30 days before it.

After

The first 60 of 126.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc101374. Read Tue, Sep 22, 2026, 5:24 PM UTC.