Washington earthquakes

M2.0 earthquake 2 km SSE of Des Moines, Washington

A magnitude 2.0 earthquake struck 2 km SSE of Des Moines, Washington on Tue, Aug 17, 1971, 6:14 PM PDT (01:14 UTC), 16 km (10 mi) below the surface.

A larger quake followed: M2.6 5 km NNE of Hoodsport, 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
2.0 (md), micro
Local time
UTC
1971-08-18 01:14:45 UTC
Depth
15.9 km (9.9 mi), shallow
Epicenter
47.385° N, 122.313° 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 1.2 km horizontally, 1.6 km in depth
Magnitude uncertainty
±0.06
Depth from
Operator assigned
Station coverage gap
82°
Stations used
7

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 26 in the 60 days after this one and 15 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10839498. Read Tue, Sep 22, 2026, 3:35 PM UTC.