California earthquakes

M1.7 earthquake 16 km NNE of Upper Lake, California

A magnitude 1.7 earthquake struck 16 km NNE of Upper Lake, California on Tue, Jan 7, 1986, 6:54 PM PST (02:54 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M3.6 8 km WSW of Kelseyville, California. 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
1986-01-08 02:54:04 UTC
Depth
5.9 km (3.7 mi), shallow
Epicenter
39.296° N, 122.829° 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, 2.1 km in depth
Magnitude uncertainty
±0.10
Depth from
From location
Station coverage gap
105°
Stations used
10

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 175 in the 60 days after this one and 109 in the 30 days before it.

After

The first 60 of 175.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc64262. Read Thu, Oct 1, 2026, 2:33 PM UTC.