Oklahoma earthquakes

M2.7 earthquake 10 km WSW of Shamrock, Oklahoma

A magnitude 2.7 earthquake struck 10 km WSW of Shamrock, Oklahoma on Thu, Sep 21, 2017, 11:08 PM CDT (04:08 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M3.8 10 km SSE of Red Rock, Oklahoma. This one was a foreshock.

Stroud forecastMore in Oklahoma

Map

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

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The earthquake

Magnitude
2.7 (mwr), micro
Local time
UTC
2017-09-22 04:08:47 UTC
Depth
6.1 km (3.8 mi), shallow
Epicenter
35.865° N, 96.683° W
Region
Oklahoma
Felt reports
3
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

3 people reported to the USGS what they felt; the strongest reported shaking was III, 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?

Fault motion and ground failure

How the rock slipped, from the moment tensor, and the USGS estimate of landslides and liquefaction.

Faulting
Strike-slip
Moment magnitude
2.7 Mwr
Nodal plane 1
Strike 77°, dip 85°, rake -160°
Nodal plane 2
Strike 345°, dip 70°, rake -5°

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 1.4 km horizontally, 3.0 km in depth
Station coverage gap
42°
Stations used
0

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 51 in the 60 days after this one and 37 in the 30 days before it.

After

  1. 3.810 km SSE of Red Rock, Oklahoma · 3286 days ago · 7 km deep · 69 km away · felt by 67
  2. 2.511 km WSW of Shamrock, Oklahoma · 3284 days ago · 5 km deep · 1 km away
  3. 2.59 km SW of Shamrock, Oklahoma · 3282 days ago · 7 km deep · 3 km away · felt by 1
  4. 3.03 km WNW of Cushing, Oklahoma · 3281 days ago · 5 km deep · 18 km away · felt by 16
  5. 2.65 km W of Arcadia, Oklahoma · 3281 days ago · 5 km deep · 67 km away · felt by 4
  6. 2.910 km WSW of Shamrock, Oklahoma · 3281 days ago · 6 km deep · 0 km away · felt by 5
  7. 2.67 km W of Shamrock, Oklahoma · 3280 days ago · 6 km deep · 5 km away
  8. 2.610 km WSW of Shamrock, Oklahoma · 3280 days ago · 7 km deep · 0 km away · felt by 1
  9. 2.513 km WSW of Ralston, Oklahoma · 3280 days ago · 8 km deep · 68 km away · felt by 1
  10. 2.89 km SSE of Covington, Oklahoma · 3279 days ago · 8 km deep · 88 km away · felt by 3
  11. 2.69 km SSE of Covington, Oklahoma · 3279 days ago · 6 km deep · 87 km away · felt by 2
  12. 3.37 km NW of Orlando, Oklahoma · 3278 days ago · 8 km deep · 76 km away · felt by 7
  13. 2.53 km WNW of Cushing, Oklahoma · 3278 days ago · 5 km deep · 18 km away · felt by 1
  14. 2.34 km WNW of Lucien, Oklahoma · 3278 days ago · 8 km deep · 88 km away · felt by 3
  15. 2.64 km WNW of Lucien, Oklahoma · 3277 days ago · 5 km deep · 87 km away · felt by 4
  16. 2.64 km WNW of Lucien, Oklahoma · 3277 days ago · 7 km deep · 88 km away
  17. 2.610 km W of Mulhall, Oklahoma · 3274 days ago · 6 km deep · 78 km away
  18. 2.73 km W of Lucien, Oklahoma · 3271 days ago · 7 km deep · 86 km away · felt by 2
  19. 2.75 km WNW of Lucien, Oklahoma · 3270 days ago · 8 km deep · 88 km away
  20. 2.412 km ESE of Dover, Oklahoma · 3269 days ago · 6 km deep · 99 km away
  21. 2.87 km NNE of Guthrie, Oklahoma · 3268 days ago · 6 km deep · 65 km away · felt by 3
  22. 2.46 km W of Arcadia, Oklahoma · 3268 days ago · 6 km deep · 68 km away · felt by 1
  23. 2.96 km W of Arcadia, Oklahoma · 3268 days ago · 6 km deep · 68 km away · felt by 28
  24. 2.86 km W of Arcadia, Oklahoma · 3268 days ago · 7 km deep · 68 km away
  25. 3.37 km NNE of Lake Aluma, Oklahoma · 3267 days ago · 5 km deep · 72 km away · felt by 86
  26. 2.57 km SE of Lucien, Oklahoma · 3263 days ago · 7 km deep · 75 km away
  27. 2.710 km NNE of Kendrick, Oklahoma · 3261 days ago · 6 km deep · 5 km away · felt by 5
  28. 2.97 km SE of Marshall, Oklahoma · 3258 days ago · 7 km deep · 84 km away · felt by 1
  29. 2.75 km WNW of Lucien, Oklahoma · 3257 days ago · 8 km deep · 89 km away · felt by 1
  30. 2.48 km SSE of Perry, Oklahoma · 3257 days ago · 8 km deep · 65 km away · felt by 1
  31. 2.58 km SSE of Perry, Oklahoma · 3256 days ago · 8 km deep · 65 km away · felt by 1
  32. 2.45 km SE of Guthrie, Oklahoma · 3256 days ago · 5 km deep · 64 km away · felt by 3
  33. 2.54 km NNE of Dale, Oklahoma · 3254 days ago · 4 km deep · 58 km away · felt by 2
  34. 3.14 km W of Lucien, Oklahoma · 3254 days ago · 7 km deep · 87 km away · felt by 5
  35. 2.95 km WNW of Lucien, Oklahoma · 3252 days ago · 8 km deep · 88 km away · felt by 2
  36. 2.38 km SSE of Perry, Oklahoma · 3252 days ago · 8 km deep · 65 km away · felt by 1
  37. 2.31 km N of Jones, Oklahoma · 3250 days ago · 6 km deep · 63 km away · felt by 5
  38. 2.69 km SSE of Covington, Oklahoma · 3247 days ago · 8 km deep · 87 km away · felt by 1
  39. 2.54 km NE of Meridian, Oklahoma · 3246 days ago · 7 km deep · 47 km away
  40. 3.09 km W of Orlando, Oklahoma · 3245 days ago · 8 km deep · 79 km away · felt by 1
  41. 3.04 km ENE of Morrison, Oklahoma · 3245 days ago · 6 km deep · 56 km away · felt by 3
  42. 2.910 km WSW of Shamrock, Oklahoma · 3244 days ago · 6 km deep · 0 km away
  43. 2.25 km NE of Edmond, Oklahoma · 3240 days ago · 5 km deep · 70 km away · felt by 3
  44. 3.54 km W of Lucien, Oklahoma · 3240 days ago · 7 km deep · 87 km away · felt by 17
  45. 2.95 km WNW of Lucien, Oklahoma · 3240 days ago · 8 km deep · 88 km away · felt by 2
  46. 2.77 km ENE of Guthrie, Oklahoma · 3237 days ago · 5 km deep · 60 km away · felt by 1
  47. 2.86 km ENE of Edmond, Oklahoma · 3232 days ago · 5 km deep · 69 km away · felt by 39
  48. 3.66 km W of Arcadia, Oklahoma · 3229 days ago · 5 km deep · 68 km away · felt by 362
  49. 2.45 km W of Arcadia, Oklahoma · 3229 days ago · 5 km deep · 67 km away
  50. 3.05 km W of Arcadia, Oklahoma · 3229 days ago · 6 km deep · 67 km away · felt by 16
  51. 3.28 km SE of Mulhall, Oklahoma · 3228 days ago · 6 km deep · 60 km away · felt by 8

Before

  1. 2.75 km WNW of Lucien, Oklahoma · 3288 days ago · 7 km deep · 88 km away
  2. 3.0Oklahoma · 3289 days ago · 5 km deep · 34 km away · felt by 5
  3. 2.55 km WNW of Lucien, Oklahoma · 3290 days ago · 8 km deep · 88 km away
  4. 3.32 km WNW of Cushing, Oklahoma · 3290 days ago · 6 km deep · 17 km away · felt by 20
  5. 2.53 km ESE of Carney, Oklahoma · 3291 days ago · 7 km deep · 28 km away
  6. 3.53 km SE of Carney, Oklahoma · 3292 days ago · 6 km deep · 28 km away · felt by 7
  7. 3.810 km WSW of Shamrock, Oklahoma · 3293 days ago · 7 km deep · 1 km away · felt by 199
  8. 2.43 km WNW of Cushing, Oklahoma · 3293 days ago · 6 km deep · 17 km away · felt by 2
  9. 3.45 km WNW of Lucien, Oklahoma · 3295 days ago · 8 km deep · 88 km away · felt by 8
  10. 3.34 km WNW of Lucien, Oklahoma · 3296 days ago · 7 km deep · 88 km away · felt by 5
  11. 2.59 km SE of Sparks, Oklahoma · 3298 days ago · 6 km deep · 34 km away
  12. 3.68 km ESE of Sparks, Oklahoma · 3299 days ago · 5 km deep · 34 km away · felt by 34
  13. 2.72 km SSE of Marshall, Oklahoma · 3299 days ago · 5 km deep · 89 km away
  14. 2.51 km E of Luther, Oklahoma · 3299 days ago · 5 km deep · 50 km away · felt by 2
  15. 2.52 km WNW of Cushing, Oklahoma · 3299 days ago · 4 km deep · 17 km away · felt by 9
  16. 3.33 km WNW of Cushing, Oklahoma · 3299 days ago · 6 km deep · 18 km away · felt by 12
  17. 2.83 km W of Cushing, Oklahoma · 3300 days ago · 6 km deep · 18 km away
  18. 3.13 km WNW of Cushing, Oklahoma · 3300 days ago · 6 km deep · 18 km away · felt by 19
  19. 2.84 km WNW of Lucien, Oklahoma · 3300 days ago · 8 km deep · 88 km away · felt by 1
  20. 2.75 km WNW of Lucien, Oklahoma · 3300 days ago · 8 km deep · 88 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us2000aszh. Read Tue, Sep 22, 2026, 3:56 PM UTC.