Washington earthquakes

M1.8 earthquake 14 km E of Carnation, Washington

A magnitude 1.8 earthquake struck 14 km E of Carnation, Washington on Thu, Nov 1, 1973, 4:56 AM PST (12:56 UTC), 8 km (5 mi) below the surface.

A larger quake followed: M3.0 0 km SE of Seattle, Washington. This one was a foreshock.

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Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
1.8 (md), micro
Local time
UTC
1973-11-01 12:56:33 UTC
Depth
8.4 km (5.2 mi), shallow
Epicenter
47.664° N, 121.725° 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 12.1 km horizontally, 12.4 km in depth
Magnitude uncertainty
±0.09
Depth from
Operator assigned
Station coverage gap
183°, poorly surrounded by stations
Stations used
5

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 38 in the 60 days after this one and 37 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10840233. Read Thu, Sep 24, 2026, 8:58 AM UTC.