Montana earthquakes

M1.6 earthquake 25 km S of Mammoth, Wyoming

A magnitude 1.6 earthquake struck 25 km S of Mammoth, Wyoming on Thu, Aug 4, 2016, 5:59 AM MDT (11:59 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M2.8 5 km ESE 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 (ml), micro
Local time
UTC
2016-08-04 11:59:16 UTC
Depth
2.9 km (1.8 mi), shallow
Epicenter
44.749° N, 110.660° 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 0.6 km horizontally, 1.1 km in depth
Magnitude uncertainty
±0.67
Depth from
From location
Station coverage gap
179°
Stations used
10

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 36 in the 60 days after this one and 16 in the 30 days before it.

After

  1. 1.531 km ESE of Island Park, Idaho · 3699 days ago · 12 km deep · 56 km away
  2. 1.546 km SSE of Mammoth, Wyoming · 3694 days ago · 1 km deep · 25 km away
  3. 2.041 km SSE of Mammoth, Wyoming · 3685 days ago · 5 km deep · 21 km away
  4. 1.541 km SSE of Mammoth, Wyoming · 3680 days ago · 2 km deep · 21 km away
  5. 1.646 km ESE of West Yellowstone, Montana · 3679 days ago · 4 km deep · 33 km away
  6. 1.840 km SSE of Mammoth, Wyoming · 3678 days ago · 3 km deep · 20 km away
  7. 1.740 km SSE of Mammoth, Wyoming · 3678 days ago · 6 km deep · 20 km away
  8. 1.939 km SSE of Mammoth, Wyoming · 3678 days ago · 4 km deep · 19 km away
  9. 1.73 km E of Hebgen Lake Estates, Montana · 3677 days ago · 8 km deep · 38 km away
  10. 1.641 km SSE of Mammoth, Wyoming · 3676 days ago · 2 km deep · 21 km away
  11. 2.441 km SSE of Mammoth, Wyoming · 3676 days ago · 6 km deep · 21 km away
  12. 1.541 km SSE of Mammoth, Wyoming · 3676 days ago · 2 km deep · 21 km away
  13. 1.523 km SE of Mammoth, Wyoming · 3675 days ago · 11 km deep · 15 km away
  14. 1.86 km E of Hebgen Lake Estates, Montana · 3674 days ago · 9 km deep · 35 km away
  15. 1.817 km S of Mammoth, Wyoming · 3674 days ago · 5 km deep · 9 km away
  16. 1.614 km ENE of Hebgen Lake Estates, Montana · 3671 days ago · 10 km deep · 28 km away
  17. 2.126 km SSW of Mammoth, Wyoming · 3667 days ago · 8 km deep · 10 km away
  18. 1.624 km SSW of Mammoth, Wyoming · 3667 days ago · 7 km deep · 10 km away
  19. 1.525 km SSW of Mammoth, Wyoming · 3666 days ago · 6 km deep · 10 km away
  20. 1.625 km SSW of Mammoth, Wyoming · 3666 days ago · 8 km deep · 10 km away
  21. 2.029 km SSE of Virginia City, Montana · 3665 days ago · 8 km deep · 100 km away
  22. 1.621 km SE of Mammoth, Wyoming · 3664 days ago · 2 km deep · 18 km away
  23. 2.67 km SW of West Yellowstone, Montana · 3662 days ago · 9 km deep · 43 km away
  24. 1.638 km SSE of West Yellowstone, Montana · 3658 days ago · 3 km deep · 46 km away
  25. 2.35 km ESE of Hebgen Lake Estates, Montana · 3657 days ago · 11 km deep · 37 km away
  26. 1.75 km ESE of Hebgen Lake Estates, Montana · 3656 days ago · 11 km deep · 37 km away
  27. 2.85 km ESE of Hebgen Lake Estates, Montana · 3656 days ago · 11 km deep · 37 km away
  28. 2.64 km ESE of Hebgen Lake Estates, Montana · 3656 days ago · 11 km deep · 37 km away
  29. 1.65 km ESE of Hebgen Lake Estates, Montana · 3656 days ago · 11 km deep · 37 km away
  30. 1.74 km ESE of Hebgen Lake Estates, Montana · 3656 days ago · 11 km deep · 37 km away
  31. 2.257 km NNE of Kelly, Wyoming · 3656 days ago · 8 km deep · 75 km away
  32. 2.5Wyoming · 3654 days ago · 7 km deep · 74 km away
  33. 1.712 km E of West Yellowstone, Montana · 3654 days ago · 7 km deep · 25 km away
  34. 2.346 km NW of Island Park, Idaho · 3653 days ago · 9 km deep · 89 km away
  35. 2.226 km SSW of Mammoth, Wyoming · 3651 days ago · 7 km deep · 10 km away
  36. 1.836 km E of West Yellowstone, Montana · 3649 days ago · 5 km deep · 13 km away

Before

  1. 2.1Wyoming · 3710 days ago · 5 km deep · 21 km away
  2. 1.537 km S of Silver Gate, Montana · 3715 days ago · 9 km deep · 50 km away
  3. 1.829 km ESE of West Yellowstone, Montana · 3715 days ago · 6 km deep · 21 km away
  4. 1.638 km S of Silver Gate, Montana · 3715 days ago · 11 km deep · 50 km away
  5. 1.629 km ESE of West Yellowstone, Montana · 3716 days ago · 4 km deep · 21 km away
  6. 1.929 km ESE of West Yellowstone, Montana · 3716 days ago · 6 km deep · 21 km away
  7. 2.229 km ESE of West Yellowstone, Montana · 3716 days ago · 7 km deep · 21 km away
  8. 1.737 km S of Silver Gate, Montana · 3718 days ago · 12 km deep · 49 km away
  9. 1.626 km E of Island Park, Idaho · 3727 days ago · 6 km deep · 47 km away
  10. 2.040 km SSE of West Yellowstone, Montana · 3727 days ago · 7 km deep · 47 km away
  11. 1.743 km W of Hebgen Lake Estates, Montana · 3730 days ago · 11 km deep · 85 km away
  12. 1.716 km ENE of Hebgen Lake Estates, Montana · 3731 days ago · 7 km deep · 29 km away
  13. 1.544 km SE of West Yellowstone, Montana · 3731 days ago · 4 km deep · 40 km away
  14. 1.844 km SE of West Yellowstone, Montana · 3731 days ago · 11 km deep · 39 km away
  15. 1.945 km SE of West Yellowstone, Montana · 3731 days ago · 4 km deep · 41 km away
  16. 1.934 km E of West Yellowstone, Montana · 3738 days ago · 5 km deep · 14 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uu60157532. Read Wed, Sep 30, 2026, 2:47 AM UTC.