Montana earthquakes

M1.8 earthquake 39 km SSE of Mammoth, Wyoming

A magnitude 1.8 earthquake struck 39 km SSE of Mammoth, Wyoming on Thu, Feb 9, 2017, 12:39 AM MST (07:39 UTC), 4 km (3 mi) below the surface.

A larger quake followed: M2.9 38 km S of Silver Gate, Montana. This one was a foreshock.

Gardiner forecastMore in Montana

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
1.8 (ML, local (Richter)), micro
Magnitude from
University of Utah Seismograph Stations
Local time
UTC
2017-02-09 07:39:27 UTC
Depth
4.5 km (2.8 mi), shallow
Epicenter
44.667° N, 110.470° 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, 0.7 km in depth
Magnitude uncertainty
±0.32
Depth from
From location
Station coverage gap
109°
Stations used
11

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 31 in the 60 days after this one and 15 in the 30 days before it.

After

  1. 1.638 km SSE of Mammoth, Wyoming · 3522 days ago · 4 km deep · 0 km away
  2. 1.95 km SSW of West Yellowstone, Montana · 3522 days ago · 12 km deep · 53 km away
  3. 2.025 km S of Mammoth, Wyoming · 3522 days ago · 4 km deep · 18 km away
  4. 2.425 km S of Mammoth, Wyoming · 3522 days ago · 4 km deep · 18 km away
  5. 1.720 km SSE of Mammoth, Wyoming · 3521 days ago · 8 km deep · 19 km away
  6. 2.314 km E of Hebgen Lake Estates, Montana · 3520 days ago · 8 km deep · 45 km away
  7. 1.948 km SE of West Yellowstone, Montana · 3513 days ago · 4 km deep · 35 km away
  8. 1.927 km SW of Silver Gate, Montana · 3513 days ago · 4 km deep · 26 km away
  9. 1.815 km ENE of Hebgen Lake Estates, Montana · 3512 days ago · 7 km deep · 44 km away
  10. 1.640 km SE of Mammoth, Wyoming · 3508 days ago · 2 km deep · 5 km away
  11. 2.034 km E of West Yellowstone, Montana · 3507 days ago · 5 km deep · 17 km away
  12. 1.725 km SSE of West Yellowstone, Montana · 3506 days ago · 12 km deep · 46 km away
  13. 2.623 km NE of West Yellowstone, Montana · 3502 days ago · 6 km deep · 36 km away · felt by 1
  14. 1.715 km ENE of Hebgen Lake Estates, Montana · 3500 days ago · 4 km deep · 45 km away
  15. 2.522 km NE of West Yellowstone, Montana · 3498 days ago · 6 km deep · 36 km away
  16. 2.023 km SW of Mammoth, Wyoming · 3498 days ago · 6 km deep · 36 km away
  17. 1.99 km SSW of West Yellowstone, Montana · 3497 days ago · 8 km deep · 55 km away
  18. 1.628 km WNW of Hebgen Lake Estates, Montana · 3495 days ago · 13 km deep · 86 km away
  19. 1.735 km E of West Yellowstone, Montana · 3492 days ago · 4 km deep · 17 km away
  20. 1.645 km SSE of West Yellowstone, Montana · 3491 days ago · 6 km deep · 47 km away
  21. 1.923 km SW of Mammoth, Wyoming · 3490 days ago · 6 km deep · 37 km away
  22. 2.17 km SSW of West Yellowstone, Montana · 3481 days ago · 8 km deep · 53 km away
  23. 1.624 km SSW of Mammoth, Wyoming · 3475 days ago · 7 km deep · 25 km away
  24. 2.938 km S of Silver Gate, Montana · 3473 days ago · 13 km deep · 40 km away · felt by 1
  25. 2.037 km S of Silver Gate, Montana · 3473 days ago · 15 km deep · 38 km away
  26. 1.538 km W of Roscoe, Montana · 3473 days ago · 4 km deep · 88 km away
  27. 2.27 km E of Hebgen Lake Estates, Montana · 3471 days ago · 8 km deep · 51 km away
  28. 2.37 km E of Hebgen Lake Estates, Montana · 3471 days ago · 8 km deep · 51 km away
  29. 1.739 km SSE of Mammoth, Wyoming · 3469 days ago · 4 km deep · 1 km away
  30. 1.844 km ESE of West Yellowstone, Montana · 3469 days ago · 4 km deep · 19 km away
  31. 1.77 km E of Hebgen Lake Estates, Montana · 3468 days ago · 8 km deep · 51 km away

Before

  1. 3.442 km W of Hebgen Lake Estates, Montana · 3528 days ago · 12 km deep · 100 km away
  2. 1.738 km S of Silver Gate, Montana · 3528 days ago · 15 km deep · 37 km away
  3. 1.6Wyoming · 3536 days ago · 6 km deep · 6 km away
  4. 2.147 km SSE of Mammoth, Wyoming · 3539 days ago · 2 km deep · 9 km away
  5. 2.947 km SSE of Mammoth, Wyoming · 3539 days ago · 4 km deep · 9 km away
  6. 2.147 km SSE of Mammoth, Wyoming · 3539 days ago · 5 km deep · 9 km away
  7. 2.047 km SSE of Mammoth, Wyoming · 3539 days ago · 5 km deep · 9 km away
  8. 1.649 km SE of Mammoth, Wyoming · 3539 days ago · 5 km deep · 11 km away
  9. 2.020 km SE of Mammoth, Wyoming · 3540 days ago · 7 km deep · 20 km away
  10. 1.922 km SE of Mammoth, Wyoming · 3540 days ago · 11 km deep · 18 km away
  11. 1.815 km ENE of Hebgen Lake Estates, Montana · 3542 days ago · 7 km deep · 44 km away
  12. 1.516 km E of Hebgen Lake Estates, Montana · 3542 days ago · 7 km deep · 43 km away
  13. 3.315 km ENE of Hebgen Lake Estates, Montana · 3542 days ago · 8 km deep · 44 km away · felt by 1
  14. 1.518 km ENE of West Yellowstone, Montana · 3543 days ago · 11 km deep · 35 km away
  15. 1.84 km S of Hebgen Lake Estates, Montana · 3546 days ago · 7 km deep · 58 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uu60184242. Read Fri, Oct 2, 2026, 2:33 PM UTC.