Wyoming earthquakes

M3.3 earthquake 17 km SW of Fairview, Wyoming

A magnitude 3.3 earthquake struck 17 km SW of Fairview, Wyoming on Tue, Sep 18, 2018, 3:22 AM MDT (09:22 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M3.8 12 km E of Soda Springs, Idaho. 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
3.3 (ml), minor
Local time
UTC
2018-09-18 09:22:31 UTC
Depth
6.2 km (3.9 mi), shallow
Epicenter
42.587° N, 111.152° W
Region
Wyoming
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 1.6 km horizontally, 6.3 km in depth
Magnitude uncertainty
±0.04
Depth from
From location
Station coverage gap
53°
Stations used
90

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 51 in the 60 days after this one and 25 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us2000hgat (also filed as uu60296882). Read Wed, Sep 30, 2026, 4:06 PM UTC.