Wyoming earthquakes

M1.8 earthquake 5 km NNE of Etna, Wyoming

A magnitude 1.8 earthquake struck 5 km NNE of Etna, Wyoming on Thu, Mar 12, 2015, 9:58 PM MDT (03:58 UTC), 7 km (4 mi) below the surface.

Automatic solution: the magnitude and location may still be revised.

A larger quake followed: M3.4 3 km NW of Bennington, 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
1.8 (Mc), micro
Magnitude from
Montana Bureau of Mines and Geology
Local time
UTC
2015-03-13 03:58:48 UTC
Depth
7.1 km (4.4 mi), shallow
Epicenter
43.074° N, 110.981° W
Region
Wyoming
Tsunami flag
No
Status
Automatic solution, may be revised

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

An automatic solution; a seismologist may revise it.

Location uncertainty
About 0.8 km horizontally, 2.3 km in depth
Magnitude uncertainty
±0.50
Station coverage gap
112°
Stations used
17

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 18 in the 60 days after this one and 1 in the 30 days before it.

After

  1. 2.25 km NW of Bennington, Idaho · 4223 days ago · -2 km deep · 79 km away
  2. 3.43 km NW of Bennington, Idaho · 4223 days ago · -3 km deep · 80 km away · felt by 8
  3. 2.92 km NW of Bennington, Idaho · 4223 days ago · 3 km deep · 80 km away
  4. 2.95 km NW of Bennington, Idaho · 4223 days ago · 0 km deep · 79 km away
  5. 2.96 km SSW of Georgetown, Idaho · 4223 days ago · -3 km deep · 80 km away
  6. 2.84 km NW of Bennington, Idaho · 4223 days ago · -3 km deep · 79 km away
  7. 2.23 km NW of Bennington, Idaho · 4223 days ago · 4 km deep · 79 km away
  8. 2.04 km NW of Bennington, Idaho · 4223 days ago · -3 km deep · 80 km away
  9. 1.92 km N of Bennington, Idaho · 4220 days ago · 3 km deep · 79 km away
  10. 1.6southern Idaho · 4220 days ago · 3 km deep · 78 km away
  11. 1.63 km NNE of Bennington, Idaho · 4220 days ago · 6 km deep · 78 km away
  12. 2.225 km SSW of Irwin, Idaho · 4220 days ago · 1 km deep · 41 km away
  13. 2.25 km ENE of Alta, Wyoming · 4212 days ago · 4 km deep · 78 km away
  14. 2.317 km W of Bennington, Idaho · 4190 days ago · 0 km deep · 90 km away
  15. 1.919 km SSW of Irwin, Idaho · 4180 days ago · 7 km deep · 40 km away
  16. 1.75 km SE of Kelly, Wyoming · 4174 days ago · 8 km deep · 66 km away
  17. 1.624 km SW of Swan Valley, Idaho · 4171 days ago · 1 km deep · 56 km away
  18. 1.85 km ENE of Jackson, Wyoming · 4163 days ago · 6 km deep · 53 km away · felt by 7

Before

  1. 1.715 km SW of Georgetown, Idaho · 4252 days ago · 2 km deep · 87 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event mb15634592. Read Sun, Oct 4, 2026, 1:48 PM UTC.