California earthquakes

M3.1 earthquake 21 km NE of Soledad, California

A magnitude 3.1 earthquake struck 21 km NE of Soledad, California on Mon, Nov 13, 1978, 8:52 PM PST (04:52 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M3.8 10 km ESE of Coalinga, California. This one was a foreshock.

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

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The earthquake

Magnitude
3.1 (Md, duration), minor
Magnitude from
Northern California Seismic System
Local time
UTC
1978-11-14 04:52:51 UTC
Depth
2.8 km (1.8 mi), shallow
Epicenter
36.565° N, 121.157° 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, 0.5 km in depth
Magnitude uncertainty
±0.08
Depth from
From location
Station coverage gap
39°
Stations used
45

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 128 in the 60 days after this one and 64 in the 30 days before it.

After

The first 60 of 128.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1043366 (also filed as ci3343521). Read Thu, Oct 1, 2026, 8:59 AM UTC.