Washington earthquakes

M2.8 earthquake 35 km NE of Amboy, Washington

A magnitude 2.8 earthquake struck 35 km NE of Amboy, Washington on Wed, Mar 26, 1980, 8:09 AM PST (16:09 UTC), -1 km (-1 mi) below the surface.

A larger quake followed: M5.7 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
2.8 (md), micro
Local time
UTC
1980-03-26 16:09:19 UTC
Depth
-0.9 km (-0.5 mi), shallow
Epicenter
46.164° N, 122.178° 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 1.4 km horizontally, 0.6 km in depth
Magnitude uncertainty
±0.06
Depth from
From location
Station coverage gap
252°, poorly surrounded by stations
Stations used
7

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: at least 200 in the 60 days after this one and 84 in the 30 days before it.

After

The first 60 of at least 200.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10077973. Read Sat, Sep 26, 2026, 3:17 PM UTC.