Wyoming earthquakes

M1.6 earthquake 2 km NE of Etna, Wyoming

A magnitude 1.6 earthquake struck 2 km NE of Etna, Wyoming on Thu, Oct 5, 2017, 3:30 AM MDT (09:30 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M4.1 8 km NNW of Georgetown, 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
1.6 (ml), micro
Local time
UTC
2017-10-05 09:30:34 UTC
Depth
6.0 km (3.7 mi), shallow
Epicenter
43.053° N, 110.990° 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, 9.8 km in depth
Magnitude uncertainty
±0.34
Depth from
Operator assigned
Station coverage gap
158°
Stations used
11

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 184 in the 60 days after this one and at least 200 in the 30 days before it.

After

The first 60 of 184.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event mb80259264. Read Wed, Sep 30, 2026, 4:57 AM UTC.