Montana earthquakes

M1.9 earthquake 25 km SSE of Mammoth, Wyoming

A magnitude 1.9 earthquake struck 25 km SSE of Mammoth, Wyoming on Fri, Oct 17, 2014, 8:31 PM MDT (02:31 UTC), 4 km (2 mi) below the surface.

A larger quake followed: M3.1 25 km WNW of Hebgen Lake Estates, Montana. 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
1.9 (ML, local (Richter)), micro
Magnitude from
University of Utah Seismograph Stations
Local time
UTC
2014-10-18 02:31:06 UTC
Depth
3.9 km (2.4 mi), shallow
Epicenter
44.785° N, 110.526° 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 1.1 km horizontally, 1.3 km in depth
Magnitude uncertainty
±0.43
Depth from
FROM_LOCATION
Station coverage gap
157°
Stations used
13

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 66 in the 60 days after this one and 15 in the 30 days before it.

After

  1. 1.519 km ESE of West Yellowstone, Montana · 4370 days ago · 4 km deep · 35 km away
  2. 1.639 km SSE of Mammoth, Wyoming · 4368 days ago · 6 km deep · 14 km away
  3. 2.240 km SW of Silver Gate, Montana · 4367 days ago · 6 km deep · 17 km away
  4. 2.229 km ESE of Island Park, Idaho · 4366 days ago · 12 km deep · 62 km away
  5. 2.451 km SE of West Yellowstone, Montana · 4365 days ago · 2 km deep · 44 km away
  6. 1.751 km SE of West Yellowstone, Montana · 4365 days ago · 2 km deep · 44 km away
  7. 1.631 km SW of Silver Gate, Montana · 4364 days ago · 11 km deep · 22 km away
  8. 3.125 km WNW of Hebgen Lake Estates, Montana · 4361 days ago · 10 km deep · 77 km away
  9. 1.716 km S of Mammoth, Wyoming · 4360 days ago · 9 km deep · 14 km away
  10. 1.816 km S of Mammoth, Wyoming · 4360 days ago · 5 km deep · 14 km away
  11. 1.546 km ENE of Warm River, Idaho · 4359 days ago · 8 km deep · 63 km away
  12. 2.455 km ENE of Warm River, Idaho · 4358 days ago · 5 km deep · 59 km away
  13. 1.955 km ENE of Warm River, Idaho · 4358 days ago · 3 km deep · 59 km away
  14. 2.755 km ENE of Warm River, Idaho · 4358 days ago · 7 km deep · 59 km away · felt by 1
  15. 1.654 km ENE of Warm River, Idaho · 4358 days ago · 4 km deep · 59 km away
  16. 1.954 km ENE of Warm River, Idaho · 4358 days ago · 9 km deep · 60 km away
  17. 1.725 km SSE of West Yellowstone, Montana · 4352 days ago · 9 km deep · 53 km away
  18. 1.625 km SSE of West Yellowstone, Montana · 4352 days ago · 12 km deep · 52 km away
  19. 1.843 km SE of West Yellowstone, Montana · 4351 days ago · 4 km deep · 53 km away
  20. 1.834 km E of West Yellowstone, Montana · 4350 days ago · 6 km deep · 22 km away
  21. 1.634 km ESE of West Yellowstone, Montana · 4346 days ago · 5 km deep · 24 km away
  22. 1.839 km S of Silver Gate, Montana · 4339 days ago · 16 km deep · 48 km away
  23. 1.620 km ESE of West Yellowstone, Montana · 4338 days ago · 2 km deep · 36 km away
  24. 1.75 km ESE of Hebgen Lake Estates, Montana · 4337 days ago · 11 km deep · 47 km away
  25. 2.431 km WNW of Hebgen Lake Estates, Montana · 4336 days ago · 10 km deep · 83 km away
  26. 2.035 km E of West Yellowstone, Montana · 4335 days ago · 6 km deep · 21 km away
  27. 2.035 km E of West Yellowstone, Montana · 4335 days ago · 6 km deep · 21 km away
  28. 1.735 km E of West Yellowstone, Montana · 4334 days ago · 6 km deep · 21 km away
  29. 1.969 km WSW of Cody, Wyoming · 4333 days ago · 6 km deep · 78 km away
  30. 1.635 km E of West Yellowstone, Montana · 4332 days ago · 6 km deep · 21 km away
  31. 1.635 km E of West Yellowstone, Montana · 4332 days ago · 6 km deep · 21 km away
  32. 1.835 km E of West Yellowstone, Montana · 4332 days ago · 6 km deep · 21 km away
  33. 1.835 km E of West Yellowstone, Montana · 4332 days ago · 7 km deep · 21 km away
  34. 1.936 km E of West Yellowstone, MT · 4332 days ago · 6 km deep · 21 km away
  35. 1.651 km ESE of West Yellowstone, Montana · 4331 days ago · 3 km deep · 37 km away
  36. 2.337 km S of Silver Gate, Montana · 4331 days ago · 15 km deep · 45 km away
  37. 1.618 km ESE of West Yellowstone, Montana · 4330 days ago · 8 km deep · 38 km away
  38. 2.017 km SE of West Yellowstone, Montana · 4329 days ago · 8 km deep · 39 km away
  39. 1.657 km ESE of West Yellowstone, Montana · 4329 days ago · 4 km deep · 35 km away
  40. 1.958 km ESE of West Yellowstone, Montana · 4329 days ago · 4 km deep · 36 km away
  41. 1.643 km ESE of West Yellowstone, Montana · 4328 days ago · 4 km deep · 30 km away
  42. 1.926 km WNW of Hebgen Lake Estates, Montana · 4327 days ago · 8 km deep · 79 km away
  43. 2.023 km SE of Mammoth, Wyoming · 4325 days ago · 3 km deep · 2 km away
  44. 1.825 km SSE of Mammoth, Wyoming · 4325 days ago · 4 km deep · 0 km away
  45. 1.840 km SE of West Yellowstone, Montana · 4325 days ago · 2 km deep · 46 km away
  46. 1.640 km SE of West Yellowstone, Montana · 4325 days ago · 2 km deep · 46 km away
  47. 2.140 km SE of West Yellowstone, Montana · 4325 days ago · 3 km deep · 47 km away
  48. 1.940 km SSE of Mammoth, Wyoming · 4325 days ago · 0 km deep · 16 km away
  49. 1.824 km SE of Mammoth, Wyoming · 4324 days ago · 6 km deep · 3 km away
  50. 1.646 km ENE of Warm River, Idaho · 4324 days ago · 3 km deep · 63 km away
  51. 1.945 km ENE of Warm River, Idaho · 4324 days ago · 5 km deep · 64 km away
  52. 1.746 km ENE of Warm River, Idaho · 4324 days ago · 3 km deep · 63 km away
  53. 1.546 km ENE of Warm River, Idaho · 4324 days ago · 3 km deep · 63 km away
  54. 2.045 km ENE of Warm River, Idaho · 4324 days ago · 5 km deep · 64 km away
  55. 1.624 km SE of Mammoth, Wyoming · 4323 days ago · 4 km deep · 1 km away
  56. 2.124 km SE of Mammoth, Wyoming · 4323 days ago · 6 km deep · 1 km away
  57. 1.829 km ESE of Mammoth, Wyoming · 4323 days ago · 13 km deep · 15 km away
  58. 1.835 km E of West Yellowstone, Montana · 4322 days ago · 5 km deep · 20 km away
  59. 2.130 km ESE of West Yellowstone, Montana · 4321 days ago · 5 km deep · 29 km away
  60. 1.654 km NE of Alta, Wyoming · 4319 days ago · 11 km deep · 73 km away

The first 60 of 66.

Before

  1. 1.612 km NE of West Yellowstone, Montana · 4373 days ago · 10 km deep · 39 km away
  2. 1.622 km WNW of Hebgen Lake Estates, Montana · 4377 days ago · 11 km deep · 74 km away
  3. 1.544 km ENE of Warm River, Idaho · 4383 days ago · 4 km deep · 64 km away
  4. 1.530 km ESE of Island Park, Idaho · 4384 days ago · 7 km deep · 59 km away
  5. 1.521 km SSW of Mammoth, Wyoming · 4391 days ago · 3 km deep · 23 km away
  6. 1.624 km SSW of Mammoth, Wyoming · 4392 days ago · 5 km deep · 20 km away
  7. 1.621 km SSW of Mammoth, Wyoming · 4392 days ago · 2 km deep · 23 km away
  8. 2.021 km SSW of Mammoth, Wyoming · 4392 days ago · 4 km deep · 23 km away
  9. 1.821 km SSW of Mammoth, Wyoming · 4392 days ago · 3 km deep · 23 km away
  10. 1.821 km SSW of Mammoth, Wyoming · 4392 days ago · 4 km deep · 23 km away
  11. 2.321 km SSW of Mammoth, Wyoming · 4392 days ago · 5 km deep · 24 km away
  12. 1.631 km ESE of West Yellowstone, Montana · 4393 days ago · 7 km deep · 25 km away
  13. 3.213 km S of Mammoth, Wyoming · 4394 days ago · 6 km deep · 15 km away
  14. 1.737 km S of Silver Gate, Montana · 4394 days ago · 16 km deep · 43 km away
  15. 1.947 km ESE of West Yellowstone, Montana · 4400 days ago · 4 km deep · 32 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uu60088847. Read Mon, Oct 5, 2026, 7:47 AM UTC.