Wyoming earthquakes

M2.1 earthquake 7 km SSE of Hoback, Wyoming

A magnitude 2.1 earthquake struck 7 km SSE of Hoback, Wyoming on Wed, Sep 15, 2021, 4:55 PM MDT (22:55 UTC), 6 km (3 mi) below the surface.

A larger quake followed: M3.4 16 km ENE of Georgetown, Idaho. This one was a foreshock.

Hoback forecastMore in Wyoming

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
2.1 (ML, local (Richter)), micro
Magnitude from
Montana Bureau of Mines and Geology
Local time
UTC
2021-09-15 22:55:53 UTC
Depth
5.6 km (3.5 mi), shallow
Epicenter
43.218° N, 110.759° 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 0.7 km horizontally, 4.7 km in depth
Magnitude uncertainty
±0.21
Depth from
From location
Station coverage gap
101°
Stations used
14

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 23 in the 60 days after this one and 2 in the 30 days before it.

After

  1. 2.316 km WSW of Auburn, Wyoming · 1841 days ago · 7 km deep · 64 km away
  2. 1.936 km NE of Bondurant, Wyoming · 1835 days ago · 6 km deep · 60 km away
  3. 2.112 km ESE of Soda Springs, Idaho · 1830 days ago · 7 km deep · 88 km away
  4. 1.621 km SSW of Irwin, Idaho · 1822 days ago · 6 km deep · 50 km away
  5. 2.410 km ENE of Alta, Wyoming · 1821 days ago · 11 km deep · 64 km away · felt by 2
  6. 1.610 km ENE of Alta, Wyoming · 1819 days ago · 10 km deep · 65 km away
  7. 1.79 km ENE of Alta, Wyoming · 1817 days ago · 11 km deep · 65 km away
  8. 2.916 km ENE of Georgetown, Idaho · 1810 days ago · 5 km deep · 85 km away · felt by 2
  9. 3.416 km ENE of Georgetown, Idaho · 1810 days ago · 5 km deep · 83 km away · felt by 23
  10. 2.119 km ENE of Georgetown, Idaho · 1807 days ago · 6 km deep · 83 km away
  11. 1.946 km NE of Alta, Wyoming · 1804 days ago · 10 km deep · 96 km away
  12. 2.215 km N of Georgetown, Idaho · 1803 days ago · 6 km deep · 84 km away
  13. 1.917 km ENE of Georgetown, Idaho · 1801 days ago · 0 km deep · 83 km away
  14. 2.019 km ENE of Georgetown, Idaho · 1796 days ago · -3 km deep · 79 km away
  15. 1.624 km ESE of Kelly, Wyoming · 1794 days ago · 3 km deep · 47 km away
  16. 1.833 km SSW of Dubois, Wyoming · 1793 days ago · 6 km deep · 81 km away
  17. 1.517 km ENE of Bondurant, Wyoming · 1791 days ago · 6 km deep · 44 km away
  18. 1.916 km SW of Fairview, Wyoming · 1791 days ago · -3 km deep · 77 km away
  19. 2.546 km NE of Alta, Wyoming · 1790 days ago · 10 km deep · 96 km away · felt by 1
  20. 2.246 km NE of Alta, Wyoming · 1790 days ago · 7 km deep · 96 km away
  21. 2.029 km ESE of Kelly, Wyoming · 1789 days ago · 8 km deep · 51 km away
  22. 1.846 km NE of Alta, Wyoming · 1787 days ago · 10 km deep · 96 km away
  23. 2.533 km SSW of Dubois, Wyoming · 1787 days ago · 10 km deep · 82 km away

Before

  1. 2.019 km NE of Georgetown, Idaho · 1853 days ago · -3 km deep · 78 km away
  2. 2.314 km SSW of Big Piney, Wyoming · 1861 days ago · 35 km deep · 99 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event mb80523289. Read Mon, Oct 5, 2026, 2:39 AM UTC.