Wyoming earthquakes

M2.3 earthquake 37 km S of Silver Gate, Montana

A magnitude 2.3 earthquake struck 37 km S of Silver Gate, Montana on Mon, Dec 18, 2017, 4:44 PM MST (23:44 UTC), 13 km (8 mi) below the surface.

A larger quake followed: M2.6 11 km NE of West Yellowstone, 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
2.3 (ML, local (Richter)), micro
Magnitude from
University of Utah Seismograph Stations
Local time
UTC
2017-12-18 23:44:34 UTC
Depth
13.0 km (8.1 mi), shallow
Epicenter
44.669° N, 109.988° W
Region
Wyoming
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, 0.9 km in depth
Magnitude uncertainty
±0.05
Depth from
From location
Station coverage gap
123°
Stations used
20

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 8 in the 30 days before it.

After

  1. 1.939 km S of Silver Gate, Montana · 3209 days ago · 10 km deep · 3 km away
  2. 2.037 km S of Silver Gate, Montana · 3205 days ago · 16 km deep · 2 km away
  3. 1.8Idaho-Montana border region · 3201 days ago · 9 km deep · 85 km away
  4. 1.647 km SE of Mammoth, Wyoming · 3199 days ago · 3 km deep · 29 km away
  5. 2.121 km NE of West Yellowstone, Montana · 3193 days ago · 5 km deep · 74 km away
  6. 2.446 km SSW of Silver Gate, Montana · 3189 days ago · 6 km deep · 23 km away
  7. 1.646 km ESE of West Yellowstone, Montana · 3183 days ago · 2 km deep · 46 km away
  8. 1.646 km ESE of West Yellowstone, Montana · 3181 days ago · 5 km deep · 45 km away
  9. 1.649 km ESE of West Yellowstone, Montana · 3179 days ago · 4 km deep · 48 km away
  10. 1.634 km ESE of West Yellowstone, Montana · 3175 days ago · 8 km deep · 55 km away
  11. 1.624 km SSE of West Yellowstone, Montana · 3173 days ago · 4 km deep · 83 km away
  12. 2.225 km SSE of West Yellowstone, Montana · 3172 days ago · 4 km deep · 85 km away
  13. 1.546 km SE of West Yellowstone, Montana · 3167 days ago · 4 km deep · 59 km away
  14. 2.09 km ENE of Hebgen Lake Estates, Montana · 3166 days ago · 7 km deep · 87 km away
  15. 1.624 km ENE of West Yellowstone, Montana · 3164 days ago · 8 km deep · 65 km away
  16. 1.648 km ESE of West Yellowstone, Montana · 3164 days ago · 3 km deep · 55 km away
  17. 1.638 km SSE of Mammoth, Wyoming · 3162 days ago · 4 km deep · 37 km away
  18. 1.615 km NE of West Yellowstone, Montana · 3158 days ago · 5 km deep · 78 km away
  19. 1.612 km NE of West Yellowstone, Montana · 3156 days ago · 8 km deep · 81 km away
  20. 1.734 km E of West Yellowstone, Montana · 3154 days ago · 8 km deep · 54 km away
  21. 1.734 km E of West Yellowstone, Montana · 3154 days ago · 7 km deep · 54 km away
  22. 2.011 km NE of West Yellowstone, Montana · 3152 days ago · 8 km deep · 81 km away
  23. 2.311 km NE of West Yellowstone, Montana · 3152 days ago · 8 km deep · 80 km away
  24. 2.611 km NE of West Yellowstone, Montana · 3152 days ago · 8 km deep · 81 km away · felt by 19
  25. 1.611 km NE of West Yellowstone, Montana · 3152 days ago · 7 km deep · 80 km away
  26. 2.011 km NE of West Yellowstone, Montana · 3152 days ago · 8 km deep · 81 km away
  27. 1.511 km NE of West Yellowstone, Montana · 3151 days ago · 9 km deep · 80 km away
  28. 2.011 km NE of West Yellowstone, Montana · 3151 days ago · 8 km deep · 80 km away
  29. 1.612 km NE of West Yellowstone, Montana · 3151 days ago · 7 km deep · 80 km away
  30. 2.212 km NE of West Yellowstone, Montana · 3151 days ago · 8 km deep · 81 km away
  31. 2.111 km NE of West Yellowstone, Montana · 3151 days ago · 8 km deep · 81 km away

Before

  1. 1.9Idaho-Montana border region · 3216 days ago · 8 km deep · 83 km away
  2. 2.246 km SSW of Silver Gate, Montana · 3221 days ago · 5 km deep · 20 km away
  3. 1.613 km E of Hebgen Lake Estates, Montana · 3222 days ago · 8 km deep · 82 km away
  4. 1.911 km SW of West Yellowstone, Montana · 3223 days ago · 14 km deep · 98 km away
  5. 1.525 km SSW of Mammoth, Wyoming · 3224 days ago · 4 km deep · 65 km away
  6. 1.725 km SSW of Mammoth, Wyoming · 3224 days ago · 5 km deep · 65 km away
  7. 1.624 km SSE of Mammoth, Wyoming · 3231 days ago · 3 km deep · 53 km away
  8. 1.525 km S of Mammoth, Wyoming · 3231 days ago · 3 km deep · 53 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uu60262697. Read Sat, Oct 3, 2026, 9:13 AM UTC.