Wyoming earthquakes

M2.2 earthquake 38 km S of Silver Gate, Montana

A magnitude 2.2 earthquake struck 38 km S of Silver Gate, Montana on Wed, Aug 13, 2014, 4:45 AM MDT (10:45 UTC), 11 km (7 mi) below the surface.

A larger quake followed: M3.2 13 km S of Mammoth, 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
2.2 (ML, local (Richter)), micro
Magnitude from
University of Utah Seismograph Stations
Local time
UTC
2014-08-13 10:45:20 UTC
Depth
10.5 km (6.5 mi), shallow
Epicenter
44.662° N, 109.951° 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 0.9 km horizontally, 0.5 km in depth
Magnitude uncertainty
±0.30
Depth from
FROM_LOCATION
Station coverage gap
211°, poorly surrounded by stations
Stations used
22

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 39 in the 60 days after this one and 9 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uu60080552. Read Sun, Oct 4, 2026, 12:33 PM UTC.