Montana earthquakes

M1.6 earthquake 21 km SSW of Mammoth, Wyoming

A magnitude 1.6 earthquake struck 21 km SSW of Mammoth, Wyoming on Thu, Sep 25, 2014, 6:50 PM MDT (00:50 UTC), 2 km (1 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
1.6 (Md, duration), micro
Magnitude from
University of Utah Seismograph Stations
Local time
UTC
2014-09-26 00:50:38 UTC
Depth
2.3 km (1.4 mi), shallow
Epicenter
44.798° N, 110.817° 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 0.3 km horizontally, 0.9 km in depth
Magnitude uncertainty
±0.44
Depth from
FROM_LOCATION
Station coverage gap
132°
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: 38 in the 60 days after this one and 15 in the 30 days before it.

After

  1. 1.624 km SSW of Mammoth, Wyoming · 4389 days ago · 5 km deep · 5 km away
  2. 1.521 km SSW of Mammoth, Wyoming · 4389 days ago · 3 km deep · 1 km away
  3. 1.530 km ESE of Island Park, Idaho · 4382 days ago · 7 km deep · 50 km away
  4. 1.544 km ENE of Warm River, Idaho · 4380 days ago · 4 km deep · 62 km away
  5. 1.622 km WNW of Hebgen Lake Estates, Montana · 4374 days ago · 11 km deep · 51 km away
  6. 1.612 km NE of West Yellowstone, Montana · 4371 days ago · 10 km deep · 16 km away
  7. 1.741 km NE of Spencer, Idaho · 4369 days ago · 11 km deep · 86 km away
  8. 1.925 km SSE of Mammoth, Wyoming · 4368 days ago · 4 km deep · 23 km away
  9. 1.519 km ESE of West Yellowstone, Montana · 4368 days ago · 4 km deep · 24 km away
  10. 1.639 km SSE of Mammoth, Wyoming · 4365 days ago · 6 km deep · 32 km away
  11. 2.240 km SW of Silver Gate, Montana · 4365 days ago · 6 km deep · 40 km away
  12. 2.229 km ESE of Island Park, Idaho · 4363 days ago · 12 km deep · 53 km away
  13. 2.451 km SE of West Yellowstone, Montana · 4362 days ago · 2 km deep · 49 km away
  14. 1.751 km SE of West Yellowstone, Montana · 4362 days ago · 2 km deep · 49 km away
  15. 1.631 km SW of Silver Gate, Montana · 4361 days ago · 11 km deep · 45 km away
  16. 3.125 km WNW of Hebgen Lake Estates, Montana · 4358 days ago · 10 km deep · 54 km away
  17. 1.716 km S of Mammoth, Wyoming · 4358 days ago · 9 km deep · 11 km away
  18. 1.816 km S of Mammoth, Wyoming · 4358 days ago · 5 km deep · 11 km away
  19. 1.741 km NE of Spencer, Idaho · 4358 days ago · 10 km deep · 86 km away
  20. 1.546 km ENE of Warm River, Idaho · 4356 days ago · 8 km deep · 62 km away
  21. 2.455 km ENE of Warm River, Idaho · 4356 days ago · 5 km deep · 61 km away
  22. 1.955 km ENE of Warm River, Idaho · 4356 days ago · 3 km deep · 61 km away
  23. 2.755 km ENE of Warm River, Idaho · 4356 days ago · 7 km deep · 61 km away · felt by 1
  24. 1.654 km ENE of Warm River, Idaho · 4356 days ago · 4 km deep · 60 km away
  25. 1.954 km ENE of Warm River, Idaho · 4356 days ago · 9 km deep · 62 km away
  26. 1.725 km SSE of West Yellowstone, Montana · 4350 days ago · 9 km deep · 42 km away
  27. 1.625 km SSE of West Yellowstone, Montana · 4350 days ago · 12 km deep · 41 km away
  28. 1.843 km SE of West Yellowstone, Montana · 4349 days ago · 4 km deep · 50 km away
  29. 1.834 km E of West Yellowstone, Montana · 4348 days ago · 6 km deep · 23 km away
  30. 1.634 km ESE of West Yellowstone, Montana · 4344 days ago · 5 km deep · 24 km away
  31. 1.839 km S of Silver Gate, Montana · 4336 days ago · 16 km deep · 71 km away
  32. 1.620 km ESE of West Yellowstone, Montana · 4336 days ago · 2 km deep · 25 km away
  33. 1.75 km ESE of Hebgen Lake Estates, Montana · 4335 days ago · 11 km deep · 24 km away
  34. 2.431 km WNW of Hebgen Lake Estates, Montana · 4334 days ago · 10 km deep · 60 km away
  35. 2.035 km E of West Yellowstone, Montana · 4333 days ago · 6 km deep · 24 km away
  36. 2.035 km E of West Yellowstone, Montana · 4333 days ago · 6 km deep · 23 km away
  37. 1.735 km E of West Yellowstone, Montana · 4332 days ago · 6 km deep · 23 km away
  38. 1.969 km WSW of Cody, Wyoming · 4331 days ago · 6 km deep · 97 km away

Before

  1. 2.021 km SSW of Mammoth, Wyoming · 4390 days ago · 4 km deep · 1 km away
  2. 1.821 km SSW of Mammoth, Wyoming · 4390 days ago · 3 km deep · 1 km away
  3. 1.821 km SSW of Mammoth, Wyoming · 4390 days ago · 4 km deep · 1 km away
  4. 2.321 km SSW of Mammoth, Wyoming · 4390 days ago · 5 km deep · 1 km away
  5. 1.631 km ESE of West Yellowstone, Montana · 4391 days ago · 7 km deep · 23 km away
  6. 3.213 km S of Mammoth, Wyoming · 4392 days ago · 6 km deep · 12 km away
  7. 1.737 km S of Silver Gate, Montana · 4392 days ago · 16 km deep · 66 km away
  8. 1.947 km ESE of West Yellowstone, Montana · 4397 days ago · 4 km deep · 40 km away
  9. 1.834 km E of West Yellowstone, Montana · 4398 days ago · 5 km deep · 22 km away
  10. 1.715 km S of Mammoth, Wyoming · 4399 days ago · 4 km deep · 10 km away
  11. 1.928 km WNW of Hebgen Lake Estates, Montana · 4402 days ago · 12 km deep · 57 km away
  12. 1.638 km SSE of Mammoth, Wyoming · 4402 days ago · 5 km deep · 31 km away
  13. 1.633 km ESE of West Yellowstone, Montana · 4404 days ago · 6 km deep · 25 km away
  14. 1.633 km E of West Yellowstone, Montana · 4404 days ago · 4 km deep · 23 km away
  15. 1.640 km SSE of Mammoth, Wyoming · 4408 days ago · 4 km deep · 32 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uu60006200. Read Fri, Oct 2, 2026, 9:43 PM UTC.