California earthquakes

M1.8 earthquake 11 km NNE of Avenal, California

A magnitude 1.8 earthquake struck 11 km NNE of Avenal, California on Sun, Apr 5, 1981, 4:11 AM PST (12:11 UTC), 0 km (0 mi) below the surface.

A larger quake followed: M3.0 20 km S of Avenal, California. This one was a foreshock.

Avenal forecastMore in California

Map

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

Open the live map with earthquakes

The earthquake

Magnitude
1.8 (md), micro
Local time
UTC
1981-04-05 12:11:23 UTC
Depth
-0.3 km (-0.2 mi), shallow
Epicenter
36.099° N, 120.070° 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 0.8 km horizontally, 4.6 km in depth
Magnitude uncertainty
±0.16
Depth from
From location
Station coverage gap
241°, poorly surrounded by stations
Stations used
34

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 69 in the 60 days after this one and 25 in the 30 days before it.

After

The first 60 of 69.

Before

Earthquakes todayCalifornia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1062154 (also filed as ci151796). Read Wed, Sep 30, 2026, 11:21 PM UTC.