Wyoming earthquakes

M3.2 earthquake 17 km SW of Smoot, Wyoming

A magnitude 3.2 earthquake struck 17 km SW of Smoot, Wyoming on Thu, Apr 7, 1994, 12:03 PM MDT (18:03 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M4.3 13 km SW of Smoot, Wyoming. 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
3.2 (ML, local (Richter)), minor
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
1994-04-07 18:03:44 UTC
Depth
5.0 km (3.1 mi), shallow
Epicenter
42.509° N, 111.064° W
Region
Wyoming
Tsunami flag
No
Status
Reviewed by a seismologist

What happened

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

Small precursor about 5 seconds prior to this event.

From the USGS event page for usp0006ask. 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.

How well it is located

Reviewed by a seismologist.

Depth from
OPERATOR_ASSIGNED

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 32 in the 60 days after this one and 27 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0006ask. Read Fri, Oct 2, 2026, 11:29 PM UTC.