Wyoming earthquakes

M1.9 earthquake 66 km NNE of Kelly, Wyoming

A magnitude 1.9 earthquake struck 66 km NNE of Kelly, Wyoming on Mon, Dec 27, 2021, 7:36 AM MST (14:36 UTC), 13 km (8 mi) below the surface.

A larger quake followed: M2.8 50 km SSE of Mammoth, Wyoming. This one was a foreshock.

Driggs 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
1.9 (Md, duration), micro
Magnitude from
University of Utah Seismograph Stations
Local time
UTC
2021-12-27 14:36:04 UTC
Depth
13.4 km (8.3 mi), shallow
Epicenter
44.159° N, 110.250° 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 0.4 km horizontally, 1.1 km in depth
Magnitude uncertainty
±0.28
Depth from
From location
Station coverage gap
93°
Stations used
15

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 22 in the 60 days after this one and 10 in the 30 days before it.

After

  1. 1.634 km ESE of West Yellowstone, Montana · 1742 days ago · 6 km deep · 57 km away
  2. 1.620 km ENE of Hebgen Lake Estates, Montana · 1742 days ago · 6 km deep · 91 km away
  3. 2.366 km NNE of Kelly, Wyoming · 1738 days ago · 11 km deep · 0 km away
  4. 1.743 km ESE of West Yellowstone, Montana · 1733 days ago · 3 km deep · 48 km away
  5. 2.522 km SSW of Mammoth, Wyoming · 1733 days ago · 8 km deep · 83 km away
  6. 1.623 km SSW of Mammoth, Wyoming · 1730 days ago · 7 km deep · 83 km away
  7. 2.122 km SSW of Mammoth, Wyoming · 1726 days ago · 9 km deep · 83 km away · felt by 1
  8. 2.041 km SSW of Silver Gate, Montana · 1726 days ago · 4 km deep · 55 km away
  9. 1.716 km SE of Kelly, Wyoming · 1715 days ago · 6 km deep · 73 km away
  10. 2.361 km SSE of Mammoth, Wyoming · 1710 days ago · 0 km deep · 39 km away
  11. 1.539 km WNW of Cody, Wyoming · 1707 days ago · 9 km deep · 79 km away
  12. 2.151 km SSE of Mammoth, Wyoming · 1700 days ago · 4 km deep · 48 km away
  13. 2.850 km SSE of Mammoth, Wyoming · 1700 days ago · 3 km deep · 48 km away
  14. 1.846 km ESE of West Yellowstone, Montana · 1699 days ago · 2 km deep · 43 km away
  15. 1.833 km SE of West Yellowstone, Montana · 1696 days ago · 4 km deep · 56 km away · felt by 1
  16. 1.733 km SE of West Yellowstone, Montana · 1696 days ago · 4 km deep · 56 km away · felt by 2
  17. 1.932 km SE of West Yellowstone, Montana · 1696 days ago · 4 km deep · 57 km away
  18. 1.849 km SE of Mammoth, Wyoming · 1688 days ago · 5 km deep · 52 km away
  19. 2.451 km SE of Mammoth, Wyoming · 1688 days ago · 2 km deep · 50 km away
  20. 2.74 km NE of Jackson, Wyoming · 1684 days ago · 5 km deep · 82 km away · felt by 337
  21. 1.94 km NNE of Jackson, Wyoming · 1684 days ago · 0 km deep · 82 km away
  22. 1.82 km NNE of Jackson, Wyoming · 1683 days ago · 5 km deep · 84 km away · felt by 1

Before

  1. 2.566 km NNE of Kelly, Wyoming · 1746 days ago · 11 km deep · 1 km away
  2. 1.85 km NNE of Alta, Wyoming · 1750 days ago · 11 km deep · 72 km away
  3. 2.635 km S of Silver Gate, Montana · 1751 days ago · 15 km deep · 62 km away
  4. 1.828 km S of Mammoth, Wyoming · 1761 days ago · 4 km deep · 71 km away
  5. 1.7Wyoming · 1764 days ago · 13 km deep · 59 km away
  6. 1.619 km ENE of West Yellowstone, Montana · 1764 days ago · 8 km deep · 82 km away
  7. 1.922 km SSW of Mammoth, Wyoming · 1769 days ago · 4 km deep · 82 km away
  8. 1.946 km ESE of West Yellowstone, Montana · 1770 days ago · 7 km deep · 48 km away
  9. 2.419 km NE of West Yellowstone, Montana · 1771 days ago · 8 km deep · 88 km away
  10. 1.612 km NE of Bondurant, Wyoming · 1772 days ago · 6 km deep · 100 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uu60474562. Read Mon, Oct 5, 2026, 3:41 AM UTC.