Washington earthquakes

M3.0 earthquake 25 km NNE of Amanda Park, Washington

A magnitude 3.0 earthquake struck 25 km NNE of Amanda Park, Washington on Mon, Jan 29, 1973, 9:39 PM PST (05:39 UTC), 49 km (30 mi) below the surface.

A larger quake followed: M3.8 7 km W of Home, 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: 3.0 (md), minor
Local time: Mon, Jan 29, 1973, 9:39 PM PST
UTC: 1973-01-30 05:39:42 UTC
Depth: 49.0 km (30.5 mi), shallow
Epicenter: 47.661° N, 123.749° W
Region: Washington
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 2.4 km horizontally, 3.4 km in depth
Magnitude uncertainty: ±0.15
Depth from: From location
Station coverage gap: 242°, poorly surrounded by stations
Stations used: 8

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 12 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 uw10855653. Read Tue, Sep 22, 2026, 12:12 PM UTC.