Washington earthquakes

M2.0 earthquake 9 km ENE of Carnation, Washington

A magnitude 2.0 earthquake struck 9 km ENE of Carnation, Washington on Tue, Dec 27, 1977, 10:50 AM PST (18:50 UTC), 16 km (10 mi) below the surface.

A larger quake followed: M2.3 6 km NNE of Lofall, 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
1977-12-27 18:50:36 UTC
Depth
16.1 km (10.0 mi), shallow
Epicenter
47.672° N, 121.797° 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 0.5 km horizontally, 0.9 km in depth
Depth from
From location
Station coverage gap
82°
Stations used
19

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 16 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10845443. Read Tue, Sep 22, 2026, 5:29 AM UTC.