California earthquakes

M1.9 earthquake 6km NW of North Fork, CA

A magnitude 1.9 earthquake struck 6km NW of North Fork, CA on Fri, Oct 29, 2021, 7:41 PM PDT (02:41 UTC), 33 km (21 mi) below the surface.

A larger quake followed: M3.1 15km WSW of Toms Place, CA. 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
1.9 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
2021-10-30 02:41:26 UTC
Depth
33.3 km (20.7 mi), shallow
Epicenter
37.275° N, 119.555° 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, 0.8 km in depth
Magnitude uncertainty
±0.21
Depth from
From location
Station coverage gap
89°
Stations used
21

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 55 in the 60 days after this one and 28 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc73646405. Read Sat, Oct 3, 2026, 8:21 PM UTC.