Washington earthquakes

M1.6 earthquake 4 km SSW of Des Moines, Washington

A magnitude 1.6 earthquake struck 4 km SSW of Des Moines, Washington on Wed, Feb 2, 1983, 12:42 AM PST (08:42 UTC), 13 km (8 mi) below the surface.

A larger quake followed: M2.0 9 km ESE of Carbonado, Washington. 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
1.6 (md), micro
Local time
UTC
1983-02-02 08:42:30 UTC
Depth
13.1 km (8.1 mi), shallow
Epicenter
47.363° N, 122.337° 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, 1.5 km in depth
Magnitude uncertainty
±0.12
Depth from
From location
Station coverage gap
103°
Stations used
9

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 45 in the 60 days after this one and 22 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10148458. Read Tue, Sep 22, 2026, 4:25 AM UTC.