Idaho earthquakes

M1.6 earthquake 15 km E of Alta, Wyoming

A magnitude 1.6 earthquake struck 15 km E of Alta, Wyoming on Mon, Feb 25, 2019, 8:46 AM MST (15:46 UTC), 9 km (6 mi) below the surface.

A larger quake followed: M2.8 31 km ESE of West Yellowstone, Montana. This one was a foreshock.

Driggs forecastMore in Idaho

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, local (Richter)), micro
Magnitude from
Montana Bureau of Mines and Geology
Local time
UTC
2019-02-25 15:46:58 UTC
Depth
9.0 km (5.6 mi), shallow
Epicenter
43.746° N, 110.844° W
Region
Idaho
Felt reports
2
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

2 people reported to the USGS what they felt; the strongest reported shaking was II, weak shaking.

Did You Feel It? map: shaking reported by the public
Shaking reported by the public, by area. Map: USGS Did You Feel It?

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 0.9 km horizontally, 0.9 km in depth
Magnitude uncertainty
±0.22
Depth from
From location
Station coverage gap
165°
Stations used
5

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 27 in the 60 days after this one and 13 in the 30 days before it.

After

  1. 1.913 km ESE of Kelly, Wyoming · 2766 days ago · 12 km deep · 36 km away · felt by 1
  2. 1.645 km SE of West Yellowstone, Montana · 2764 days ago · -3 km deep · 69 km away
  3. 1.771 km NNE of Kelly, Wyoming · 2762 days ago · 8 km deep · 70 km away
  4. 1.9southern Idaho · 2761 days ago · 3 km deep · 94 km away
  5. 2.831 km ESE of West Yellowstone, Montana · 2760 days ago · 8 km deep · 92 km away
  6. 2.368 km NNE of Kelly, Wyoming · 2760 days ago · 3 km deep · 68 km away
  7. 2.068 km NNE of Kelly, Wyoming · 2759 days ago · 5 km deep · 68 km away
  8. 1.523 km ESE of Island Park, Idaho · 2758 days ago · 11 km deep · 71 km away
  9. 2.113 km ENE of Bondurant, Wyoming · 2755 days ago · 5 km deep · 74 km away
  10. 1.920 km S of Irwin, Idaho · 2754 days ago · 2 km deep · 69 km away
  11. 2.019 km S of Irwin, Idaho · 2754 days ago · 6 km deep · 67 km away
  12. 2.219 km WNW of Alpine Northwest, Wyoming · 2754 days ago · 7 km deep · 68 km away
  13. 1.761 km ESE of West Yellowstone, Montana · 2752 days ago · 4 km deep · 84 km away
  14. 1.912 km NE of Kelly, Wyoming · 2752 days ago · 10 km deep · 28 km away
  15. 1.68 km NE of Alpine Northeast, Wyoming · 2751 days ago · 7 km deep · 55 km away
  16. 1.511 km SE of Alta, Wyoming · 2747 days ago · 4 km deep · 10 km away
  17. 2.310 km SE of Alta, Wyoming · 2747 days ago · 7 km deep · 10 km away
  18. 1.624 km SSE of West Yellowstone, Montana · 2745 days ago · 15 km deep · 80 km away
  19. 1.825 km SSE of West Yellowstone, Montana · 2745 days ago · 5 km deep · 79 km away
  20. 2.024 km SSE of West Yellowstone, Montana · 2745 days ago · 8 km deep · 79 km away
  21. 1.64 km N of Teton Village, Wyoming · 2744 days ago · -1 km deep · 14 km away
  22. 1.94 km NNW of Teton Village, Wyoming · 2743 days ago · 5 km deep · 14 km away · felt by 2
  23. 1.710 km NE of Kelly, Wyoming · 2740 days ago · 10 km deep · 26 km away
  24. 2.56 km WSW of Victor, Idaho · 2739 days ago · 5 km deep · 33 km away · felt by 6
  25. 2.16 km NNW of Hoback, Wyoming · 2734 days ago · 5 km deep · 45 km away · felt by 1
  26. 1.82 km WNW of Victor, Idaho · 2733 days ago · 6 km deep · 28 km away
  27. 2.45 km N of Hoback, Wyoming · 2730 days ago · 5 km deep · 46 km away · felt by 2

Before

  1. 1.642 km ESE of West Yellowstone, Montana · 2778 days ago · 5 km deep · 84 km away
  2. 1.611 km SSE of Kelly, Wyoming · 2782 days ago · 7 km deep · 32 km away
  3. 1.516 km SE of West Yellowstone, Montana · 2784 days ago · 13 km deep · 91 km away · felt by 1
  4. 1.523 km SSE of West Yellowstone, Montana · 2784 days ago · 3 km deep · 81 km away
  5. 3.123 km SSE of West Yellowstone, Montana · 2784 days ago · 8 km deep · 81 km away · felt by 6
  6. 1.933 km E of West Yellowstone, Montana · 2785 days ago · 7 km deep · 96 km away
  7. 2.430 km SSW of Irwin, Idaho · 2786 days ago · 5 km deep · 81 km away
  8. 2.329 km SSW of Irwin, Idaho · 2786 days ago · 5 km deep · 80 km away
  9. 1.634 km WNW of Freedom, Idaho · 2787 days ago · 1 km deep · 92 km away
  10. 1.712 km E of Alta, Wyoming · 2793 days ago · 7 km deep · 3 km away
  11. 1.97 km NNE of Alta, Wyoming · 2797 days ago · 11 km deep · 15 km away
  12. 1.516 km SE of West Yellowstone, Montana · 2801 days ago · 13 km deep · 91 km away
  13. 1.611 km ESE of West Yellowstone, Montana · 2805 days ago · 9 km deep · 99 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event mb80336589. Read Fri, Oct 2, 2026, 7:51 AM UTC.