California earthquakes

M1.7 earthquake 7km NE of Coalinga, CA

A magnitude 1.7 earthquake struck 7km NE of Coalinga, CA on Wed, Oct 20, 2021, 9:51 PM PDT (04:51 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M3.2 7km NW of Parkfield, CA. This one was a foreshock.

Coalinga forecastMore in California

Map

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

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The earthquake

Magnitude
1.7 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
2021-10-21 04:51:52 UTC
Depth
10.3 km (6.4 mi), shallow
Epicenter
36.185° N, 120.308° 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 0.3 km horizontally, 0.3 km in depth
Magnitude uncertainty
±0.27
Depth from
From location
Station coverage gap
108°
Stations used
37

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 86 in the 60 days after this one and 45 in the 30 days before it.

After

The first 60 of 86.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc73642230. Read Sat, Oct 3, 2026, 5:00 PM UTC.