Montana earthquakes

M2.4 earthquake 50 km SSE of Mammoth, Wyoming

A magnitude 2.4 earthquake struck 50 km SSE of Mammoth, Wyoming on Fri, Apr 21, 2017, 1:35 AM MDT (07:35 UTC), 4 km (2 mi) below the surface.

A larger quake followed: M4.4 12 km E of Hebgen Lake Estates, Montana. 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
2.4 (ML, local (Richter)), micro
Magnitude from
University of Utah Seismograph Stations
Local time
UTC
2017-04-21 07:35:16 UTC
Depth
3.5 km (2.2 mi), shallow
Epicenter
44.581° N, 110.374° 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 0.2 km horizontally, 0.5 km in depth
Magnitude uncertainty
±0.43
Depth from
From location
Station coverage gap
70°
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: 198 in the 60 days after this one and 14 in the 30 days before it.

After

  1. 1.524 km SSE of West Yellowstone, Montana · 3449 days ago · 10 km deep · 53 km away
  2. 2.227 km W of Hebgen Lake Estates, Montana · 3444 days ago · 13 km deep · 95 km away
  3. 2.214 km E of Hebgen Lake Estates, Montana · 3443 days ago · 7 km deep · 55 km away
  4. 2.314 km E of Hebgen Lake Estates, Montana · 3443 days ago · 9 km deep · 56 km away
  5. 1.825 km S of Mammoth, Wyoming · 3442 days ago · 3 km deep · 29 km away
  6. 1.724 km S of Mammoth, Wyoming · 3442 days ago · 4 km deep · 30 km away
  7. 1.625 km S of Mammoth, Wyoming · 3442 days ago · 4 km deep · 29 km away
  8. 1.814 km NE of West Yellowstone, Montana · 3436 days ago · 8 km deep · 54 km away
  9. 1.914 km NE of West Yellowstone, Montana · 3436 days ago · 7 km deep · 54 km away
  10. 2.314 km NE of West Yellowstone, Montana · 3435 days ago · 8 km deep · 54 km away
  11. 2.613 km NE of West Yellowstone, Montana · 3435 days ago · 9 km deep · 54 km away
  12. 1.914 km NE of West Yellowstone, Montana · 3435 days ago · 8 km deep · 54 km away
  13. 2.314 km NE of West Yellowstone, Montana · 3434 days ago · 8 km deep · 54 km away
  14. 2.913 km NE of West Yellowstone, Montana · 3434 days ago · 8 km deep · 54 km away
  15. 1.814 km NE of West Yellowstone, Montana · 3434 days ago · 8 km deep · 53 km away
  16. 2.349 km SSE of Mammoth, Wyoming · 3434 days ago · 4 km deep · 2 km away
  17. 1.849 km SSE of Mammoth, Wyoming · 3434 days ago · 5 km deep · 2 km away
  18. 1.613 km NE of West Yellowstone, Montana · 3433 days ago · 8 km deep · 54 km away
  19. 1.645 km NNW of Dubois, Wyoming · 3428 days ago · 14 km deep · 85 km away
  20. 1.78 km NE of West Yellowstone, Montana · 3427 days ago · 12 km deep · 53 km away
  21. 1.945 km NNW of Dubois, Wyoming · 3421 days ago · 14 km deep · 86 km away
  22. 1.842 km SSE of Mammoth, Wyoming · 3420 days ago · 4 km deep · 9 km away
  23. 2.040 km SSE of Mammoth, Wyoming · 3418 days ago · 4 km deep · 11 km away
  24. 2.240 km SSE of Mammoth, Wyoming · 3418 days ago · 4 km deep · 11 km away
  25. 1.712 km ENE of Hebgen Lake Estates, Montana · 3417 days ago · 8 km deep · 58 km away
  26. 1.946 km SSW of Silver Gate, Montana · 3416 days ago · 4 km deep · 11 km away
  27. 2.023 km SSW of Mammoth, Wyoming · 3408 days ago · 5 km deep · 38 km away
  28. 1.6Wyoming · 3408 days ago · 2 km deep · 38 km away
  29. 2.223 km SSW of Mammoth, Wyoming · 3408 days ago · 5 km deep · 38 km away
  30. 1.615 km S of Mammoth, Wyoming · 3408 days ago · 10 km deep · 40 km away
  31. 1.824 km SSW of Mammoth, Wyoming · 3408 days ago · 5 km deep · 38 km away
  32. 2.621 km SSW of Mammoth, Wyoming · 3408 days ago · 4 km deep · 39 km away
  33. 1.724 km SSW of Mammoth, Wyoming · 3408 days ago · 3 km deep · 39 km away
  34. 1.823 km SSW of Mammoth, Wyoming · 3408 days ago · 5 km deep · 38 km away
  35. 1.623 km SSW of Mammoth, Wyoming · 3408 days ago · 5 km deep · 38 km away
  36. 1.921 km SSE of Mammoth, Wyoming · 3406 days ago · 6 km deep · 30 km away
  37. 1.650 km ESE of West Yellowstone, Montana · 3404 days ago · 3 km deep · 20 km away
  38. 1.751 km SE of West Yellowstone, Montana · 3403 days ago · 7 km deep · 37 km away
  39. 1.543 km ENE of Warm River, Idaho · 3399 days ago · 5 km deep · 51 km away
  40. 2.912 km E of Hebgen Lake Estates, Montana · 3398 days ago · 11 km deep · 57 km away
  41. 3.113 km E of Hebgen Lake Estates, Montana · 3398 days ago · 11 km deep · 56 km away
  42. 2.713 km E of Hebgen Lake Estates, Montana · 3398 days ago · 9 km deep · 56 km away
  43. 2.1Idaho-Montana border region · 3398 days ago · 9 km deep · 56 km away
  44. 1.613 km E of Hebgen Lake Estates, Montana · 3398 days ago · 9 km deep · 56 km away
  45. 2.013 km E of Hebgen Lake Estates, Montana · 3398 days ago · 9 km deep · 56 km away
  46. 1.913 km E of Hebgen Lake Estates, Montana · 3398 days ago · 9 km deep · 56 km away
  47. 1.713 km E of Hebgen Lake Estates, Montana · 3398 days ago · 9 km deep · 57 km away
  48. 2.213 km E of Hebgen Lake Estates, Montana · 3398 days ago · 9 km deep · 56 km away
  49. 2.913 km E of Hebgen Lake Estates, Montana · 3398 days ago · 8 km deep · 56 km away
  50. 2.013 km E of Hebgen Lake Estates, Montana · 3398 days ago · 8 km deep · 56 km away
  51. 1.613 km E of Hebgen Lake Estates, Montana · 3398 days ago · 8 km deep · 56 km away
  52. 1.613 km E of Hebgen Lake Estates, Montana · 3398 days ago · 9 km deep · 56 km away
  53. 2.113 km ENE of Hebgen Lake Estates, Montana · 3398 days ago · 10 km deep · 56 km away
  54. 1.713 km E of Hebgen Lake Estates, Montana · 3397 days ago · 8 km deep · 56 km away
  55. 2.113 km E of Hebgen Lake Estates, Montana · 3397 days ago · 8 km deep · 56 km away
  56. 3.212 km E of Hebgen Lake Estates, Montana · 3397 days ago · 11 km deep · 57 km away
  57. 2.113 km E of Hebgen Lake Estates, Montana · 3397 days ago · 9 km deep · 56 km away
  58. 1.913 km E of Hebgen Lake Estates, Montana · 3397 days ago · 8 km deep · 56 km away
  59. 1.713 km E of Hebgen Lake Estates, Montana · 3397 days ago · 8 km deep · 56 km away
  60. 1.613 km E of Hebgen Lake Estates, Montana · 3397 days ago · 9 km deep · 56 km away

The first 60 of 198.

Before

  1. 1.745 km SSW of Silver Gate, Montana · 3453 days ago · 6 km deep · 20 km away
  2. 1.726 km S of Silver Gate, Montana · 3455 days ago · 7 km deep · 35 km away
  3. 1.744 km ENE of Warm River, Idaho · 3458 days ago · 7 km deep · 50 km away
  4. 1.641 km ENE of Kelly, Wyoming · 3464 days ago · 21 km deep · 92 km away
  5. 1.77 km E of Hebgen Lake Estates, Montana · 3467 days ago · 8 km deep · 61 km away
  6. 1.844 km ESE of West Yellowstone, Montana · 3468 days ago · 4 km deep · 18 km away
  7. 1.739 km SSE of Mammoth, Wyoming · 3468 days ago · 4 km deep · 11 km away
  8. 2.37 km E of Hebgen Lake Estates, Montana · 3470 days ago · 8 km deep · 61 km away
  9. 2.27 km E of Hebgen Lake Estates, Montana · 3470 days ago · 8 km deep · 61 km away
  10. 1.538 km W of Roscoe, Montana · 3472 days ago · 4 km deep · 94 km away
  11. 2.037 km S of Silver Gate, Montana · 3472 days ago · 15 km deep · 32 km away
  12. 2.938 km S of Silver Gate, Montana · 3472 days ago · 13 km deep · 33 km away · felt by 1
  13. 1.624 km SSW of Mammoth, Wyoming · 3474 days ago · 7 km deep · 37 km away
  14. 2.17 km SSW of West Yellowstone, Montana · 3480 days ago · 8 km deep · 60 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uu60194672. Read Thu, Oct 1, 2026, 8:55 AM UTC.