California earthquakes

M2.3 earthquake 14 km WSW of Weott, California

A magnitude 2.3 earthquake struck 14 km WSW of Weott, California on Fri, Apr 19, 1985, 5:12 AM PST (13:12 UTC), 17 km (10 mi) below the surface.

A larger quake followed: M2.9 46 km WSW 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
2.3 (md), micro
Local time
UTC
1985-04-19 13:12:32 UTC
Depth
16.6 km (10.3 mi), shallow
Epicenter
40.282° N, 124.090° 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 21.9 km horizontally, 9.4 km in depth
Magnitude uncertainty
±0.51
Depth from
From location
Station coverage gap
136°
Stations used
6

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 54 in the 60 days after this one and 44 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc47404. Read Wed, Sep 23, 2026, 11:00 AM UTC.