California earthquakes

M2.7 earthquake 22 km WSW of Weott, California

A magnitude 2.7 earthquake struck 22 km WSW of Weott, California on Fri, Sep 26, 1986, 2:52 PM PDT (21:52 UTC), 9 km (6 mi) below the surface.

A larger quake followed: M3.0 39 km SSW of Ferndale, 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
2.7 (md), micro
Local time
UTC
1986-09-26 21:52:43 UTC
Depth
9.4 km (5.8 mi), shallow
Epicenter
40.258° N, 124.177° 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 0.6 km horizontally, 0.5 km in depth
Magnitude uncertainty
±0.02
Depth from
From location
Station coverage gap
152°
Stations used
5

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 108 in the 60 days after this one and 20 in the 30 days before it.

After

The first 60 of 108.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc10086849 (also filed as usp0002ydv). Read Wed, Sep 23, 2026, 12:52 AM UTC.