Wyoming earthquakes

M4.4 earthquake 14 km SE of Irwin, Idaho

A magnitude 4.4 earthquake struck 14 km SE of Irwin, Idaho on Tue, Feb 8, 1983, 3:54 AM MST (10:54 UTC), 7 km (4 mi) below the surface.

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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
4.4 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
1983-02-08 10:54:54 UTC
Depth
7.0 km (4.3 mi), shallow
Epicenter
43.304° N, 111.190° W
Region
Wyoming
Tsunami flag
No
Status
Reviewed by a seismologist

What happened

The USGS’s account of the effects of this earthquake.

Felt (V) at Palisades, Idaho. Felt (IV) at Etna and Teton Village, Wyoming. Also felt (IV) at Swan Valley and Victor, Idaho.

From the USGS event page for usp0001sww. U.S. Geological Survey text and figures are in the public domain.

Did you feel it?

No one has reported feeling this quake to the USGS.

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 1 in the 60 days after this one and 0 in the 30 days before it.

After

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0001sww. Read Thu, Oct 1, 2026, 11:11 AM UTC.