Montana earthquakes

M1.5 earthquake 46 km SSE of Mammoth, Wyoming

A magnitude 1.5 earthquake struck 46 km SSE of Mammoth, Wyoming on Fri, Aug 19, 2016, 6:15 AM MDT (12:15 UTC), 1 km (1 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
1.5 (ML, local (Richter)), micro
Magnitude from
University of Utah Seismograph Stations
Local time
UTC
2016-08-19 12:15:47 UTC
Depth
1.1 km (0.7 mi), shallow
Epicenter
44.608° N, 110.419° 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, 0.5 km in depth
Magnitude uncertainty
±0.35
Depth from
From location
Station coverage gap
162°
Stations used
7

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 42 in the 60 days after this one and 12 in the 30 days before it.

After

  1. 2.041 km SSE of Mammoth, Wyoming · 3686 days ago · 5 km deep · 5 km away
  2. 1.541 km SSE of Mammoth, Wyoming · 3681 days ago · 2 km deep · 5 km away
  3. 1.646 km ESE of West Yellowstone, Montana · 3680 days ago · 4 km deep · 21 km away
  4. 1.840 km SSE of Mammoth, Wyoming · 3679 days ago · 3 km deep · 7 km away
  5. 1.740 km SSE of Mammoth, Wyoming · 3679 days ago · 6 km deep · 6 km away
  6. 1.939 km SSE of Mammoth, Wyoming · 3679 days ago · 4 km deep · 7 km away
  7. 1.73 km E of Hebgen Lake Estates, Montana · 3679 days ago · 8 km deep · 60 km away
  8. 1.641 km SSE of Mammoth, Wyoming · 3677 days ago · 2 km deep · 5 km away
  9. 2.441 km SSE of Mammoth, Wyoming · 3677 days ago · 6 km deep · 5 km away
  10. 1.541 km SSE of Mammoth, Wyoming · 3677 days ago · 2 km deep · 5 km away
  11. 1.523 km SE of Mammoth, Wyoming · 3676 days ago · 11 km deep · 24 km away
  12. 1.86 km E of Hebgen Lake Estates, Montana · 3675 days ago · 9 km deep · 57 km away
  13. 1.817 km S of Mammoth, Wyoming · 3675 days ago · 5 km deep · 33 km away
  14. 1.614 km ENE of Hebgen Lake Estates, Montana · 3672 days ago · 10 km deep · 51 km away
  15. 2.126 km SSW of Mammoth, Wyoming · 3668 days ago · 8 km deep · 33 km away
  16. 1.624 km SSW of Mammoth, Wyoming · 3668 days ago · 7 km deep · 34 km away
  17. 1.525 km SSW of Mammoth, Wyoming · 3667 days ago · 6 km deep · 34 km away
  18. 1.625 km SSW of Mammoth, Wyoming · 3667 days ago · 8 km deep · 34 km away
  19. 1.621 km SE of Mammoth, Wyoming · 3665 days ago · 2 km deep · 28 km away
  20. 2.67 km SW of West Yellowstone, Montana · 3663 days ago · 9 km deep · 59 km away
  21. 1.638 km SSE of West Yellowstone, Montana · 3659 days ago · 3 km deep · 44 km away
  22. 2.35 km ESE of Hebgen Lake Estates, Montana · 3658 days ago · 11 km deep · 58 km away
  23. 1.75 km ESE of Hebgen Lake Estates, Montana · 3658 days ago · 11 km deep · 58 km away
  24. 2.85 km ESE of Hebgen Lake Estates, Montana · 3658 days ago · 11 km deep · 58 km away
  25. 2.64 km ESE of Hebgen Lake Estates, Montana · 3657 days ago · 11 km deep · 59 km away
  26. 1.65 km ESE of Hebgen Lake Estates, Montana · 3657 days ago · 11 km deep · 59 km away
  27. 1.74 km ESE of Hebgen Lake Estates, Montana · 3657 days ago · 11 km deep · 59 km away
  28. 2.257 km NNE of Kelly, Wyoming · 3657 days ago · 8 km deep · 55 km away
  29. 2.5Wyoming · 3655 days ago · 7 km deep · 55 km away
  30. 1.712 km E of West Yellowstone, Montana · 3655 days ago · 7 km deep · 42 km away
  31. 2.226 km SSW of Mammoth, Wyoming · 3652 days ago · 7 km deep · 33 km away
  32. 1.836 km E of West Yellowstone, Montana · 3650 days ago · 5 km deep · 18 km away
  33. 1.837 km S of Silver Gate, Montana · 3650 days ago · 15 km deep · 34 km away
  34. 2.237 km S of Silver Gate, Montana · 3649 days ago · 14 km deep · 33 km away
  35. 2.339 km S of Silver Gate, Montana · 3649 days ago · 11 km deep · 33 km away
  36. 1.639 km SE of Mammoth, Wyoming · 3647 days ago · 6 km deep · 9 km away
  37. 2.110 km NNE of West Yellowstone, Montana · 3645 days ago · 7 km deep · 53 km away
  38. 1.73 km NE of Hebgen Lake Estates, Montana · 3642 days ago · 11 km deep · 62 km away
  39. 1.837 km S of Silver Gate, Montana · 3642 days ago · 15 km deep · 33 km away
  40. 1.839 km S of Silver Gate, Montana · 3641 days ago · 11 km deep · 31 km away
  41. 1.941 km SSE of Mammoth, Wyoming · 3638 days ago · 5 km deep · 5 km away
  42. 1.532 km ESE of West Yellowstone, Montana · 3636 days ago · 8 km deep · 23 km away

Before

  1. 1.531 km ESE of Island Park, Idaho · 3700 days ago · 12 km deep · 57 km away
  2. 1.625 km S of Mammoth, Wyoming · 3710 days ago · 3 km deep · 25 km away
  3. 2.1Wyoming · 3711 days ago · 5 km deep · 5 km away
  4. 1.711 km NNE of Tetonia, Idaho · 3714 days ago · 12 km deep · 95 km away
  5. 1.537 km S of Silver Gate, Montana · 3716 days ago · 9 km deep · 31 km away
  6. 1.829 km ESE of West Yellowstone, Montana · 3716 days ago · 6 km deep · 27 km away
  7. 1.638 km S of Silver Gate, Montana · 3716 days ago · 11 km deep · 31 km away
  8. 1.629 km ESE of West Yellowstone, Montana · 3717 days ago · 4 km deep · 27 km away
  9. 1.929 km ESE of West Yellowstone, Montana · 3717 days ago · 6 km deep · 27 km away
  10. 2.229 km ESE of West Yellowstone, Montana · 3717 days ago · 7 km deep · 27 km away
  11. 1.737 km S of Silver Gate, Montana · 3719 days ago · 12 km deep · 30 km away
  12. 2.821 km W of Cody, Wyoming · 3722 days ago · 7 km deep · 87 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uu60158922. Read Thu, Oct 1, 2026, 4:32 AM UTC.