Washington earthquakes

M1.9 earthquake 20 km SW of Nile, Washington

A magnitude 1.9 earthquake struck 20 km SW of Nile, Washington on Thu, Jan 18, 1973, 2:26 AM PST (10:26 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M2.0 3 km ESE of Black Diamond, 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
1.9 (md), micro
Local time
UTC
1973-01-18 10:26:32 UTC
Depth
5.8 km (3.6 mi), shallow
Epicenter
46.712° N, 121.156° 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 1.5 km horizontally, 1.6 km in depth
Magnitude uncertainty
±0.17
Depth from
From location
Station coverage gap
164°
Stations used
21

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 10 in the 60 days after this one and 4 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10855563. Read Tue, Sep 22, 2026, 5:18 PM UTC.