Washington earthquakes

M1.9 earthquake 5 km ENE of Entiat, Washington

A magnitude 1.9 earthquake struck 5 km ENE of Entiat, Washington on Tue, Apr 8, 1986, 2:57 AM PST (10:57 UTC), 4 km (3 mi) below the surface.

A larger quake followed: M3.3 10 km N of Entiat, 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
1.9 (md), micro
Local time
UTC
1986-04-08 10:57:34 UTC
Depth
4.1 km (2.6 mi), shallow
Epicenter
47.699° N, 120.136° 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 4.2 km horizontally, 2.0 km in depth
Magnitude uncertainty
±0.07
Depth from
From location
Station coverage gap
293°, poorly surrounded by stations
Stations used
17

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 9 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 uw10203078 (also filed as usp0002srr). Read Tue, Sep 22, 2026, 9:38 PM UTC.