Washington earthquakes

M1.6 earthquake 10 km ENE of Ashford, Washington

A magnitude 1.6 earthquake struck 10 km ENE of Ashford, Washington on Sat, Nov 10, 1984, 1:55 PM PST (21:55 UTC), 11 km (7 mi) below the surface.

A larger quake followed: M1.7 38 km NNE of Amboy, 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
1.6 (md), micro
Local time
UTC
1984-11-10 21:55:01 UTC
Depth
10.9 km (6.8 mi), shallow
Epicenter
46.794° N, 121.903° 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 0.4 km horizontally, 1.3 km in depth
Magnitude uncertainty
±0.07
Depth from
From location
Station coverage gap
72°
Stations used
10

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 33 in the 60 days after this one and 18 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10182013. Read Tue, Sep 22, 2026, 9:40 PM UTC.