California earthquakes

M2.3 earthquake 12 km ENE of Coalinga, California

A magnitude 2.3 earthquake struck 12 km ENE of Coalinga, California on Wed, Mar 27, 1985, 1:28 AM PST (09:28 UTC), 11 km (7 mi) below the surface.

A larger quake followed: M4.3 7 km NE of Coalinga, California. This one was a foreshock.

Coalinga 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
2.3 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1985-03-27 09:28:53 UTC
Depth
11.0 km (6.8 mi), shallow
Epicenter
36.182° N, 120.237° 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 0.4 km horizontally, 1.0 km in depth
Magnitude uncertainty
±0.12
Depth from
From location
Station coverage gap
78°
Stations used
16

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 143 in the 60 days after this one and 59 in the 30 days before it.

After

The first 60 of 143.

Before

Earthquakes todayCalifornia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc44815. Read Thu, Oct 1, 2026, 6:06 PM UTC.