Washington earthquakes

M1.9 earthquake 6 km E of Mossyrock, Washington

A magnitude 1.9 earthquake struck 6 km E of Mossyrock, Washington on Sat, Apr 15, 2006, 9:51 PM PDT (04:51 UTC), 18 km (11 mi) below the surface.

A larger quake followed: M3.3 36 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
1.9 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
2006-04-16 04:51:52 UTC
Depth
17.5 km (10.9 mi), shallow
Epicenter
46.520° N, 122.402° 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, 1.1 km in depth
Magnitude uncertainty
±0.03
Depth from
From location
Station coverage gap
27°
Stations used
48

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 123 in the 60 days after this one and 32 in the 30 days before it.

After

The first 60 of 123.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10692358. Read Sat, Oct 3, 2026, 1:21 AM UTC.