Washington earthquakes

M2.7 earthquake 24 km ESE of Packwood, Washington

A magnitude 2.7 earthquake struck 24 km ESE of Packwood, Washington on Sun, Apr 24, 1983, 6:20 AM PDT (13:20 UTC), 4 km (3 mi) below the surface.

A larger quake followed: M2.8 12 km S of Snoqualmie Pass, 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
2.7 (md), micro
Local time
UTC
1983-04-24 13:20:36 UTC
Depth
4.1 km (2.5 mi), shallow
Epicenter
46.521° N, 121.380° 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 0.7 km horizontally, 1.0 km in depth
Magnitude uncertainty
±0.07
Depth from
From location
Station coverage gap
61°
Stations used
46

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 89 in the 60 days after this one and 35 in the 30 days before it.

After

The first 60 of 89.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10165643. Read Tue, Sep 22, 2026, 9:09 AM UTC.