Montana earthquakes

M1.9 earthquake 40 km SSE of Mammoth, Wyoming

A magnitude 1.9 earthquake struck 40 km SSE of Mammoth, Wyoming on Mon, Feb 28, 2022, 12:27 AM MST (07:27 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M2.9 51 km SE of Mammoth, Wyoming. This one was a foreshock.

Gardiner forecastMore in Montana

Map

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

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The earthquake

Magnitude
1.9 (ML, local (Richter)), micro
Magnitude from
University of Utah Seismograph Stations
Local time
UTC
2022-02-28 07:27:53 UTC
Depth
4.7 km (2.9 mi), shallow
Epicenter
44.664° N, 110.446° W
Region
Montana
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, 0.5 km in depth
Magnitude uncertainty
±0.56
Depth from
From location
Station coverage gap
124°
Stations used
16

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 33 in the 60 days after this one and 10 in the 30 days before it.

After

  1. 2.266 km SE of West Yellowstone, Montana · 1678 days ago · 6 km deep · 43 km away
  2. 2.067 km SE of West Yellowstone, Montana · 1678 days ago · 5 km deep · 43 km away
  3. 1.766 km SE of West Yellowstone, Montana · 1678 days ago · 4 km deep · 42 km away
  4. 2.166 km SE of West Yellowstone, Montana · 1678 days ago · 5 km deep · 42 km away
  5. 2.039 km SSE of Mammoth, Wyoming · 1678 days ago · 7 km deep · 1 km away
  6. 1.639 km SSE of Mammoth, Wyoming · 1678 days ago · 6 km deep · 1 km away
  7. 1.666 km SE of West Yellowstone, Montana · 1677 days ago · 4 km deep · 42 km away
  8. 1.552 km SE of West Yellowstone, Montana · 1669 days ago · 8 km deep · 43 km away
  9. 2.951 km SE of Mammoth, Wyoming · 1665 days ago · 6 km deep · 12 km away · felt by 1
  10. 1.750 km SE of Mammoth, Wyoming · 1665 days ago · 6 km deep · 11 km away
  11. 2.149 km SSE of Mammoth, Wyoming · 1663 days ago · 5 km deep · 9 km away
  12. 2.248 km SSE of Mammoth, Wyoming · 1663 days ago · 4 km deep · 9 km away
  13. 1.620 km SSW of Mammoth, Wyoming · 1657 days ago · 7 km deep · 31 km away
  14. 2.617 km NE of West Yellowstone, Montana · 1651 days ago · 10 km deep · 39 km away
  15. 2.317 km NE of West Yellowstone, Montana · 1651 days ago · 10 km deep · 39 km away
  16. 2.017 km NE of West Yellowstone, Montana · 1651 days ago · 9 km deep · 39 km away
  17. 1.717 km NE of West Yellowstone, Montana · 1651 days ago · 10 km deep · 39 km away
  18. 1.617 km NE of West Yellowstone, Montana · 1651 days ago · 6 km deep · 39 km away
  19. 1.817 km NE of West Yellowstone, Montana · 1651 days ago · 9 km deep · 39 km away
  20. 2.24 km SE of West Yellowstone, Montana · 1648 days ago · 11 km deep · 49 km away
  21. 1.814 km NE of West Yellowstone, Montana · 1646 days ago · 10 km deep · 43 km away
  22. 1.617 km NE of West Yellowstone, Montana · 1644 days ago · 7 km deep · 39 km away
  23. 2.114 km NE of West Yellowstone, Montana · 1640 days ago · 10 km deep · 43 km away
  24. 1.814 km NE of West Yellowstone, Montana · 1640 days ago · 10 km deep · 43 km away
  25. 1.714 km NE of West Yellowstone, Montana · 1640 days ago · 10 km deep · 43 km away
  26. 1.814 km NE of West Yellowstone, Montana · 1640 days ago · 12 km deep · 43 km away
  27. 1.714 km NE of West Yellowstone, Montana · 1638 days ago · 11 km deep · 43 km away
  28. 1.97 km N of West Yellowstone, Montana · 1636 days ago · 12 km deep · 52 km away
  29. 1.843 km NNE of Alta, Wyoming · 1635 days ago · 9 km deep · 68 km away
  30. 1.740 km SSE of Mammoth, Wyoming · 1631 days ago · 5 km deep · 2 km away
  31. 2.023 km S of West Yellowstone, Montana · 1626 days ago · 14 km deep · 54 km away
  32. 1.911 km E of Hebgen Lake Estates, Montana · 1621 days ago · 7 km deep · 49 km away
  33. 1.930 km WNW of Hebgen Lake Estates, Montana · 1621 days ago · 10 km deep · 89 km away

Before

  1. 2.451 km SE of Mammoth, Wyoming · 1688 days ago · 2 km deep · 12 km away
  2. 1.849 km SE of Mammoth, Wyoming · 1688 days ago · 5 km deep · 11 km away
  3. 1.927 km WNW of Hebgen Lake Estates, Montana · 1695 days ago · 11 km deep · 86 km away
  4. 1.932 km SE of West Yellowstone, Montana · 1696 days ago · 4 km deep · 41 km away
  5. 1.733 km SE of West Yellowstone, Montana · 1696 days ago · 4 km deep · 42 km away · felt by 2
  6. 1.833 km SE of West Yellowstone, Montana · 1696 days ago · 4 km deep · 42 km away · felt by 1
  7. 1.846 km ESE of West Yellowstone, Montana · 1699 days ago · 2 km deep · 26 km away
  8. 2.850 km SSE of Mammoth, Wyoming · 1700 days ago · 3 km deep · 11 km away
  9. 2.151 km SSE of Mammoth, Wyoming · 1700 days ago · 4 km deep · 11 km away
  10. 1.539 km WNW of Cody, Wyoming · 1707 days ago · 9 km deep · 73 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uu60483452. Read Mon, Oct 5, 2026, 11:52 AM UTC.