Utah earthquakes

M3.1 earthquake 20 km SW of Thatcher, Utah

A magnitude 3.1 earthquake struck 20 km SW of Thatcher, Utah on Sun, Oct 4, 1987, 11:38 AM MDT (17:38 UTC), 21 km (13 mi) below the surface.

A larger quake followed: M4.6 85 km E of Montello, Nevada. This one was a foreshock.

Thatcher forecastMore in Utah

Map

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

Open the live map with earthquakes

The earthquake

Magnitude
3.1 (md), minor
Local time
UTC
1987-10-04 17:38:25 UTC
Depth
20.6 km (12.8 mi), shallow
Epicenter
41.547° N, 112.451° W
Region
Utah
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 1.3 km horizontally, 1.4 km in depth
Depth from
From location
Station coverage gap
112°
Stations used
32

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 99 in the 60 days after this one and 47 in the 30 days before it.

After

  1. 1.584 km E of Montello, Nevada · 14241 days ago · 5 km deep · 71 km away
  2. 3.385 km W of Hooper, Utah · 14240 days ago · 14 km deep · 70 km away
  3. 1.884 km E of Montello, Nevada · 14240 days ago · 7 km deep · 73 km away
  4. 1.681 km E of Montello, Nevada · 14240 days ago · 8 km deep · 74 km away
  5. 2.385 km E of Montello, Nevada · 14240 days ago · 9 km deep · 72 km away
  6. 1.785 km E of Montello, Nevada · 14239 days ago · 5 km deep · 72 km away
  7. 1.783 km E of Montello, Nevada · 14239 days ago · 7 km deep · 73 km away
  8. 1.985 km E of Montello, Nevada · 14239 days ago · 9 km deep · 72 km away
  9. 1.683 km W of Hooper, Utah · 14237 days ago · 11 km deep · 70 km away
  10. 1.886 km E of Montello, Nevada · 14236 days ago · 6 km deep · 71 km away
  11. 1.89 km SSE of Morgan, Utah · 14236 days ago · 10 km deep · 95 km away
  12. 1.684 km E of Montello, Nevada · 14236 days ago · 5 km deep · 72 km away
  13. 1.519 km SW of Thatcher, Utah · 14232 days ago · 3 km deep · 1 km away
  14. 1.786 km W of Hooper, Utah · 14231 days ago · 7 km deep · 70 km away
  15. 1.985 km E of Montello, Nevada · 14231 days ago · 9 km deep · 72 km away
  16. 1.784 km E of Montello, Nevada · 14230 days ago · 7 km deep · 73 km away
  17. 1.684 km E of Montello, Nevada · 14229 days ago · 5 km deep · 73 km away
  18. 2.118 km SW of Thatcher, Utah · 14228 days ago · 8 km deep · 2 km away
  19. 1.984 km E of Montello, Nevada · 14226 days ago · 11 km deep · 74 km away
  20. 1.777 km E of Montello, Nevada · 14223 days ago · 20 km deep · 76 km away
  21. 4.186 km E of Montello, Nevada · 14222 days ago · 9 km deep · 72 km away
  22. 1.985 km E of Montello, Nevada · 14222 days ago · 7 km deep · 72 km away
  23. 2.685 km E of Montello, Nevada · 14222 days ago · 10 km deep · 73 km away
  24. 1.886 km E of Montello, Nevada · 14222 days ago · 10 km deep · 72 km away
  25. 1.783 km E of Montello, Nevada · 14222 days ago · 7 km deep · 72 km away
  26. 2.084 km E of Montello, Nevada · 14222 days ago · 6 km deep · 72 km away
  27. 2.486 km E of Montello, Nevada · 14222 days ago · 8 km deep · 72 km away
  28. 1.686 km E of Montello, Nevada · 14222 days ago · 7 km deep · 72 km away
  29. 1.686 km E of Montello, Nevada · 14221 days ago · 8 km deep · 72 km away
  30. 2.685 km E of Montello, Nevada · 14221 days ago · 9 km deep · 73 km away
  31. 3.085 km E of Montello, Nevada · 14220 days ago · 9 km deep · 73 km away
  32. 2.885 km E of Montello, Nevada · 14220 days ago · 10 km deep · 72 km away
  33. 2.018 km SW of Thatcher, Utah · 14220 days ago · 7 km deep · 2 km away
  34. 2.311 km E of Snowville, Utah · 14220 days ago · 9 km deep · 46 km away
  35. 4.685 km E of Montello, Nevada · 14220 days ago · 10 km deep · 72 km away
  36. 2.484 km E of Montello, Nevada · 14220 days ago · 8 km deep · 72 km away
  37. 1.685 km E of Montello, Nevada · 14220 days ago · 11 km deep · 74 km away
  38. 1.586 km E of Montello, Nevada · 14219 days ago · 8 km deep · 72 km away
  39. 1.885 km E of Montello, Nevada · 14219 days ago · 10 km deep · 73 km away
  40. 1.885 km E of Montello, Nevada · 14219 days ago · 7 km deep · 71 km away
  41. 1.585 km E of Montello, Nevada · 14219 days ago · 6 km deep · 72 km away
  42. 2.086 km E of Montello, Nevada · 14219 days ago · 6 km deep · 72 km away
  43. 1.585 km E of Montello, Nevada · 14219 days ago · 7 km deep · 72 km away
  44. 1.785 km E of Montello, Nevada · 14218 days ago · 6 km deep · 72 km away
  45. 1.785 km E of Montello, Nevada · 14217 days ago · 9 km deep · 71 km away
  46. 2.386 km W of Hooper, Utah · 14217 days ago · 8 km deep · 71 km away
  47. 1.985 km E of Montello, Nevada · 14217 days ago · 9 km deep · 72 km away
  48. 1.812 km E of Snowville, Utah · 14217 days ago · 8 km deep · 45 km away
  49. 1.786 km E of Montello, Nevada · 14216 days ago · 7 km deep · 71 km away
  50. 1.885 km E of Montello, Nevada · 14216 days ago · 7 km deep · 72 km away
  51. 1.785 km E of Montello, Nevada · 14216 days ago · 10 km deep · 73 km away
  52. 1.687 km W of Hooper, Utah · 14215 days ago · 7 km deep · 71 km away
  53. 1.686 km E of Montello, Nevada · 14215 days ago · 7 km deep · 72 km away
  54. 1.986 km E of Montello, Nevada · 14215 days ago · 9 km deep · 72 km away
  55. 1.586 km E of Montello, Nevada · 14215 days ago · 7 km deep · 72 km away
  56. 1.784 km E of Montello, Nevada · 14215 days ago · 5 km deep · 72 km away
  57. 1.684 km E of Montello, Nevada · 14215 days ago · 9 km deep · 73 km away
  58. 1.683 km E of Montello, Nevada · 14214 days ago · 4 km deep · 73 km away
  59. 1.785 km E of Montello, Nevada · 14213 days ago · 7 km deep · 71 km away
  60. 1.784 km E of Montello, Nevada · 14213 days ago · 6 km deep · 72 km away

The first 60 of 99.

Before

  1. 1.786 km E of Montello, Nevada · 14242 days ago · 6 km deep · 70 km away
  2. 2.017 km SW of Thatcher, Utah · 14243 days ago · 6 km deep · 3 km away
  3. 1.818 km SW of Thatcher, Utah · 14243 days ago · 8 km deep · 3 km away
  4. 2.219 km SW of Thatcher, Utah · 14243 days ago · 5 km deep · 2 km away
  5. 3.318 km SW of Thatcher, Utah · 14243 days ago · 7 km deep · 2 km away
  6. 1.718 km SW of Thatcher, Utah · 14243 days ago · 7 km deep · 2 km away
  7. 2.185 km E of Montello, Nevada · 14244 days ago · 9 km deep · 72 km away
  8. 1.885 km E of Montello, Nevada · 14244 days ago · 8 km deep · 72 km away
  9. 3.584 km W of Hooper, Utah · 14244 days ago · 11 km deep · 68 km away
  10. 2.086 km E of Montello, Nevada · 14245 days ago · 9 km deep · 72 km away
  11. 1.785 km E of Montello, Nevada · 14247 days ago · 8 km deep · 71 km away
  12. 1.785 km E of Montello, Nevada · 14247 days ago · 7 km deep · 72 km away
  13. 1.684 km E of Montello, Nevada · 14247 days ago · 10 km deep · 73 km away
  14. 3.983 km W of Hooper, Utah · 14248 days ago · 10 km deep · 66 km away
  15. 1.785 km E of Montello, Nevada · 14248 days ago · 7 km deep · 71 km away
  16. 1.786 km W of Hooper, Utah · 14248 days ago · 6 km deep · 70 km away
  17. 1.785 km E of Montello, Nevada · 14249 days ago · 10 km deep · 72 km away
  18. 2.985 km E of Montello, Nevada · 14249 days ago · 8 km deep · 71 km away
  19. 3.385 km E of Montello, Nevada · 14249 days ago · 11 km deep · 72 km away
  20. 2.085 km E of Montello, Nevada · 14249 days ago · 8 km deep · 72 km away

Earthquakes todayUtah earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event uu50033875 (also filed as usp00038z8). Read Wed, Sep 30, 2026, 8:29 PM UTC.