California earthquakes

M1.7 earthquake 15km ESE of Hydesville, CA

A magnitude 1.7 earthquake struck 15km ESE of Hydesville, CA on Thu, Jan 6, 2022, 8:34 PM PST (04:34 UTC), 23 km (14 mi) below the surface.

A larger quake followed: M3.1 12km WSW of Petrolia, CA. This one was a foreshock.

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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
2022-01-07 04:34:37 UTC
Depth
23.3 km (14.5 mi), shallow
Epicenter
40.511° N, 123.931° 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, 0.5 km in depth
Magnitude uncertainty
±0.17
Depth from
From location
Station coverage gap
47°
Stations used
23

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 82 in the 60 days after this one and at least 200 in the 30 days before it.

After

The first 60 of 82.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc73674971. Read Sun, Oct 4, 2026, 3:58 PM UTC.