Montana earthquakes

M1.9 earthquake 27 km S of Mammoth, Wyoming

A magnitude 1.9 earthquake struck 27 km S of Mammoth, Wyoming on Sat, Mar 12, 2016, 3:12 PM MST (22:12 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M2.3 20 km SSE of Mammoth, Wyoming. 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
1.9 (ML, local (Richter)), micro
Magnitude from
University of Utah Seismograph Stations
Local time
UTC
2016-03-12 22:12:40 UTC
Depth
4.8 km (3.0 mi), shallow
Epicenter
44.728° N, 110.648° 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 1.0 km horizontally, 0.5 km in depth
Magnitude uncertainty
±0.04
Depth from
From location
Station coverage gap
149°
Stations used
9

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 25 in the 60 days after this one and 2 in the 30 days before it.

After

  1. 1.641 km SSE of Mammoth, Wyoming · 3857 days ago · 2 km deep · 18 km away
  2. 1.937 km S of Silver Gate, Montana · 3854 days ago · 13 km deep · 52 km away
  3. 2.021 km ENE of Hebgen Lake Estates, Montana · 3853 days ago · 7 km deep · 24 km away
  4. 1.937 km S of Silver Gate, Montana · 3849 days ago · 13 km deep · 52 km away
  5. 1.617 km SE of West Yellowstone, Montana · 3846 days ago · 8 km deep · 32 km away
  6. 1.816 km SE of West Yellowstone, Montana · 3846 days ago · 8 km deep · 32 km away
  7. 1.517 km SE of West Yellowstone, Montana · 3846 days ago · 10 km deep · 32 km away
  8. 1.721 km SSE of Mammoth, Wyoming · 3846 days ago · 5 km deep · 11 km away
  9. 1.920 km SSE of Mammoth, Wyoming · 3846 days ago · 7 km deep · 12 km away
  10. 2.320 km SSE of Mammoth, Wyoming · 3845 days ago · 10 km deep · 12 km away
  11. 1.646 km SSE of Mammoth, Wyoming · 3844 days ago · 5 km deep · 24 km away
  12. 1.733 km SE of Virginia City, Montana · 3843 days ago · 9 km deep · 91 km away
  13. 2.132 km SSE of Virginia City, Montana · 3843 days ago · 11 km deep · 91 km away
  14. 2.242 km SSE of Mammoth, Wyoming · 3841 days ago · 4 km deep · 19 km away
  15. 1.61 km NNW of Hebgen Lake Estates, Montana · 3830 days ago · 15 km deep · 44 km away
  16. 1.624 km SSW of Mammoth, Wyoming · 3830 days ago · 4 km deep · 14 km away
  17. 1.561 km ESE of West Yellowstone, Montana · 3823 days ago · 7 km deep · 41 km away
  18. 1.639 km SSE of Mammoth, Wyoming · 3822 days ago · 5 km deep · 16 km away
  19. 1.750 km SSE of Mammoth, Wyoming · 3820 days ago · 2 km deep · 26 km away
  20. 1.651 km SSE of Mammoth, Wyoming · 3820 days ago · 3 km deep · 27 km away
  21. 1.820 km S of Mammoth, Wyoming · 3816 days ago · 4 km deep · 8 km away
  22. 2.020 km S of Mammoth, Wyoming · 3816 days ago · 4 km deep · 8 km away
  23. 1.819 km S of Mammoth, Wyoming · 3816 days ago · 4 km deep · 9 km away
  24. 1.619 km S of Mammoth, Wyoming · 3816 days ago · 4 km deep · 9 km away
  25. 1.955 km SE of West Yellowstone, Montana · 3816 days ago · 2 km deep · 46 km away

Before

  1. 1.743 km ESE of West Yellowstone, Montana · 3871 days ago · 2 km deep · 23 km away
  2. 2.246 km NW of Island Park, Idaho · 3875 days ago · 10 km deep · 91 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uu60142417. Read Mon, Oct 5, 2026, 11:02 AM UTC.