Montana earthquakes

M1.6 earthquake 25 km SSW of Mammoth, Wyoming

A magnitude 1.6 earthquake struck 25 km SSW of Mammoth, Wyoming on Fri, Mar 21, 2014, 11:39 PM MDT (05:39 UTC), 8 km (5 mi) below the surface.

A larger quake followed: M4.8 22 km S of Mammoth, Wyoming. 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
1.6 (ML, local (Richter)), micro
Magnitude from
University of Utah Seismograph Stations
Local time
UTC
2014-03-22 05:39:38 UTC
Depth
7.8 km (4.8 mi), shallow
Epicenter
44.752° N, 110.786° 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
±0.38
Depth from
From location
Station coverage gap
150°
Stations used
18

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 197 in the 60 days after this one and 52 in the 30 days before it.

After

  1. 1.817 km SSW of Mammoth, Wyoming · 4577 days ago · 4 km deep · 8 km away
  2. 1.616 km SSW of Mammoth, Wyoming · 4577 days ago · 3 km deep · 9 km away
  3. 1.619 km SSW of Mammoth, Wyoming · 4577 days ago · 4 km deep · 7 km away
  4. 1.842 km SSE of Mammoth, Wyoming · 4577 days ago · 9 km deep · 26 km away
  5. 2.023 km SSW of Mammoth, Wyoming · 4576 days ago · 8 km deep · 2 km away
  6. 1.538 km NE of Spencer, Idaho · 4576 days ago · 14 km deep · 89 km away
  7. 1.722 km SSW of Mammoth, Wyoming · 4575 days ago · 7 km deep · 3 km away
  8. 3.019 km SSW of Mammoth, Wyoming · 4573 days ago · 6 km deep · 6 km away
  9. 2.118 km SSW of Mammoth, Wyoming · 4573 days ago · 4 km deep · 7 km away
  10. 3.520 km SSW of Mammoth, Wyoming · 4573 days ago · 5 km deep · 5 km away
  11. 2.020 km SSW of Mammoth, Wyoming · 4573 days ago · 4 km deep · 5 km away
  12. 2.217 km SSW of Mammoth, Wyoming · 4573 days ago · 4 km deep · 8 km away
  13. 2.220 km SSW of Mammoth, Wyoming · 4573 days ago · 4 km deep · 5 km away
  14. 1.919 km SSW of Mammoth, Wyoming · 4573 days ago · 4 km deep · 6 km away
  15. 1.818 km SSW of Mammoth, Wyoming · 4573 days ago · 4 km deep · 8 km away
  16. 2.520 km SSW of Mammoth, Wyoming · 4573 days ago · 6 km deep · 6 km away
  17. 1.616 km SSW of Mammoth, Wyoming · 4572 days ago · 4 km deep · 9 km away
  18. 2.117 km SSW of Mammoth, Wyoming · 4572 days ago · 4 km deep · 8 km away
  19. 1.515 km SW of Mammoth, Wyoming · 4572 days ago · 7 km deep · 14 km away
  20. 1.626 km ENE of West Yellowstone, Montana · 4572 days ago · 7 km deep · 1 km away
  21. 1.822 km S of Mammoth, Wyoming · 4572 days ago · 4 km deep · 8 km away
  22. 2.021 km SSE of Mammoth, Wyoming · 4572 days ago · 4 km deep · 12 km away
  23. 1.820 km SSW of Mammoth, Wyoming · 4572 days ago · 4 km deep · 5 km away
  24. 2.021 km SE of Mammoth, Wyoming · 4571 days ago · 7 km deep · 24 km away
  25. 1.620 km SSE of Mammoth, Wyoming · 4570 days ago · 3 km deep · 14 km away
  26. 3.021 km S of Mammoth, Wyoming · 4569 days ago · 4 km deep · 9 km away
  27. 1.521 km S of Mammoth, Wyoming · 4569 days ago · 3 km deep · 9 km away
  28. 1.620 km S of Mammoth, Wyoming · 4569 days ago · 2 km deep · 9 km away
  29. 1.922 km S of Mammoth, Wyoming · 4569 days ago · 3 km deep · 8 km away
  30. 2.420 km S of Mammoth, Wyoming · 4569 days ago · 4 km deep · 10 km away
  31. 3.422 km S of Mammoth, Wyoming · 4569 days ago · 4 km deep · 8 km away
  32. 2.022 km S of Mammoth, Wyoming · 4569 days ago · 4 km deep · 8 km away
  33. 2.325 km S of Mammoth, Wyoming · 4569 days ago · 2 km deep · 7 km away
  34. 2.523 km S of Mammoth, Wyoming · 4569 days ago · 4 km deep · 8 km away
  35. 1.720 km S of Mammoth, Wyoming · 4569 days ago · 4 km deep · 10 km away
  36. 4.822 km S of Mammoth, Wyoming · 4569 days ago · 6 km deep · 8 km away · felt by 22
  37. 2.122 km S of Mammoth, Wyoming · 4569 days ago · 2 km deep · 10 km away
  38. 1.6Wyoming · 4569 days ago · 4 km deep · 8 km away
  39. 1.8Wyoming · 4569 days ago · 3 km deep · 8 km away
  40. 1.622 km S of Mammoth, Wyoming · 4569 days ago · 2 km deep · 10 km away
  41. 2.023 km S of Mammoth, Wyoming · 4569 days ago · 4 km deep · 8 km away
  42. 2.0Wyoming · 4569 days ago · 3 km deep · 8 km away
  43. 1.822 km S of Mammoth, Wyoming · 4569 days ago · 4 km deep · 8 km away
  44. 2.623 km S of Mammoth, Wyoming · 4569 days ago · 4 km deep · 8 km away
  45. 1.923 km S of Mammoth, Wyoming · 4569 days ago · 4 km deep · 8 km away
  46. 2.620 km S of Mammoth, Wyoming · 4569 days ago · 4 km deep · 11 km away
  47. 1.924 km S of Mammoth, Wyoming · 4569 days ago · 2 km deep · 8 km away
  48. 3.5Wyoming · 4569 days ago · 4 km deep · 8 km away
  49. 2.121 km S of Mammoth, Wyoming · 4569 days ago · 4 km deep · 7 km away
  50. 2.423 km S of Mammoth, Wyoming · 4569 days ago · 3 km deep · 5 km away
  51. 1.922 km S of Mammoth, Wyoming · 4569 days ago · 4 km deep · 9 km away
  52. 1.723 km S of Mammoth, Wyoming · 4569 days ago · 3 km deep · 5 km away
  53. 1.722 km S of Mammoth, Wyoming · 4569 days ago · 4 km deep · 6 km away
  54. 2.923 km S of Mammoth, Wyoming · 4569 days ago · 4 km deep · 6 km away
  55. 2.323 km S of Mammoth, Wyoming · 4569 days ago · 3 km deep · 5 km away
  56. 1.928 km S of Mammoth, Wyoming · 4569 days ago · 5 km deep · 9 km away
  57. 1.822 km S of Mammoth, Wyoming · 4569 days ago · 3 km deep · 8 km away
  58. 1.825 km S of Mammoth, Wyoming · 4569 days ago · 6 km deep · 7 km away
  59. 1.822 km S of Mammoth, Wyoming · 4569 days ago · 4 km deep · 9 km away
  60. 1.922 km S of Mammoth, Wyoming · 4569 days ago · 3 km deep · 6 km away

The first 60 of 197.

Before

  1. 2.325 km SSW of Mammoth, Wyoming · 4577 days ago · 8 km deep · 0 km away
  2. 1.925 km SSW of Mammoth, Wyoming · 4577 days ago · 8 km deep · 1 km away
  3. 2.325 km SSW of Mammoth, Wyoming · 4577 days ago · 8 km deep · 0 km away
  4. 1.917 km SSW of Mammoth, Wyoming · 4578 days ago · 4 km deep · 9 km away
  5. 2.317 km SSW of Mammoth, Wyoming · 4578 days ago · 7 km deep · 8 km away
  6. 1.919 km SSW of Mammoth, Wyoming · 4578 days ago · 4 km deep · 6 km away
  7. 1.717 km SSW of Mammoth, Wyoming · 4578 days ago · 6 km deep · 9 km away
  8. 2.0Wyoming · 4579 days ago · 8 km deep · 1 km away
  9. 1.540 km SE of West Yellowstone, Montana · 4579 days ago · 2 km deep · 41 km away
  10. 1.924 km SSW of Mammoth, Wyoming · 4580 days ago · 8 km deep · 1 km away
  11. 1.736 km S of Ennis, Montana · 4581 days ago · 10 km deep · 75 km away
  12. 1.921 km SE of Mammoth, Wyoming · 4582 days ago · 5 km deep · 21 km away
  13. 1.820 km SE of Mammoth, Wyoming · 4584 days ago · 7 km deep · 22 km away
  14. 2.125 km SSW of Mammoth, Wyoming · 4584 days ago · 9 km deep · 1 km away
  15. 1.626 km SSW of Mammoth, Wyoming · 4588 days ago · 7 km deep · 1 km away
  16. 1.826 km SSW of Mammoth, Wyoming · 4588 days ago · 6 km deep · 0 km away
  17. 1.625 km SSW of Mammoth, Wyoming · 4588 days ago · 6 km deep · 0 km away
  18. 2.126 km SSW of Mammoth, Wyoming · 4588 days ago · 6 km deep · 1 km away
  19. 1.720 km SE of Mammoth, Wyoming · 4588 days ago · 7 km deep · 22 km away
  20. 2.223 km SE of West Yellowstone, Montana · 4589 days ago · 3 km deep · 26 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uu60060642. Read Fri, Oct 2, 2026, 4:48 PM UTC.