Kansas earthquakes

M2.5 earthquake 23 km SSE of Protection, Kansas

A magnitude 2.5 earthquake struck 23 km SSE of Protection, Kansas on Fri, Jul 21, 2017, 6:51 AM CDT (11:51 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M3.5 6 km NE of Carmen, Oklahoma. 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
2.5 (mb_lg), micro
Local time
UTC
2017-07-21 11:51:12 UTC
Depth
5.0 km (3.1 mi), shallow
Epicenter
37.002° N, 99.389° W
Region
Kansas
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 2.2 km horizontally, 2.0 km in depth
Magnitude uncertainty
±0.07
Depth from
Operator assigned
Station coverage gap
170°
Stations used
55

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 47 in the 60 days after this one and 14 in the 30 days before it.

After

  1. 3.126 km SSE of Protection, Kansas · 3358 days ago · 7 km deep · 3 km away
  2. 2.727 km ENE of Buffalo, Oklahoma · 3358 days ago · 5 km deep · 6 km away · felt by 3
  3. 2.526 km ENE of Buffalo, Oklahoma · 3357 days ago · 3 km deep · 5 km away
  4. 2.926 km SSE of Protection, Kansas · 3356 days ago · 3 km deep · 3 km away · felt by 4
  5. 2.617 km SE of Waynoka, Oklahoma · 3355 days ago · 8 km deep · 82 km away · felt by 1
  6. 2.726 km ENE of Buffalo, Oklahoma · 3354 days ago · 3 km deep · 4 km away
  7. 2.627 km ENE of Buffalo, Oklahoma · 3354 days ago · 3 km deep · 4 km away
  8. 2.717 km SSE of Waynoka, Oklahoma · 3354 days ago · 5 km deep · 82 km away
  9. 2.726 km SSE of Protection, Kansas · 3352 days ago · 5 km deep · 4 km away · felt by 5
  10. 2.425 km SSE of Protection, Kansas · 3351 days ago · 5 km deep · 3 km away
  11. 2.728 km SSE of Protection, Kansas · 3350 days ago · 4 km deep · 5 km away
  12. 2.59 km WSW of Waynoka, Oklahoma · 3349 days ago · 6 km deep · 64 km away
  13. 2.526 km NE of Buffalo, Oklahoma · 3349 days ago · 5 km deep · 4 km away
  14. 2.615 km SSE of Waynoka, Oklahoma · 3349 days ago · 6 km deep · 80 km away
  15. 3.115 km SSE of Waynoka, Oklahoma · 3348 days ago · 6 km deep · 80 km away
  16. 3.18 km SW of Waynoka, Oklahoma · 3347 days ago · 10 km deep · 64 km away · felt by 5
  17. 2.65 km SE of Mooreland, Oklahoma · 3346 days ago · 6 km deep · 69 km away · felt by 1
  18. 3.215 km SSE of Waynoka, Oklahoma · 3346 days ago · 7 km deep · 81 km away
  19. 3.316 km SSE of Waynoka, Oklahoma · 3346 days ago · 7 km deep · 81 km away · felt by 7
  20. 2.62 km NNE of Lambert, Oklahoma · 3344 days ago · 5 km deep · 93 km away · felt by 2
  21. 2.59 km SW of Waynoka, Oklahoma · 3340 days ago · 7 km deep · 64 km away
  22. 2.315 km SSE of Waynoka, Oklahoma · 3338 days ago · 6 km deep · 80 km away · felt by 2
  23. 2.317 km SE of Waynoka, Oklahoma · 3337 days ago · 5 km deep · 83 km away
  24. 3.016 km SSE of Waynoka, Oklahoma · 3337 days ago · 6 km deep · 81 km away · felt by 1
  25. 2.721 km SE of Waynoka, Oklahoma · 3336 days ago · 7 km deep · 86 km away · felt by 2
  26. 3.016 km SE of Waynoka, Oklahoma · 3335 days ago · 6 km deep · 82 km away · felt by 1
  27. 3.126 km SSE of Protection, Kansas · 3333 days ago · 5 km deep · 3 km away · felt by 2
  28. 3.128 km SSE of Protection, Kansas · 3333 days ago · 5 km deep · 5 km away
  29. 2.817 km SSE of Waynoka, Oklahoma · 3331 days ago · 6 km deep · 82 km away · felt by 3
  30. 2.516 km SSE of Waynoka, Oklahoma · 3326 days ago · 6 km deep · 82 km away
  31. 2.327 km ENE of Buffalo, Oklahoma · 3325 days ago · 1 km deep · 5 km away
  32. 2.426 km NE of Buffalo, Oklahoma · 3322 days ago · 3 km deep · 4 km away
  33. 2.919 km SE of Waynoka, Oklahoma · 3322 days ago · 5 km deep · 85 km away
  34. 3.56 km NE of Carmen, Oklahoma · 3319 days ago · 6 km deep · 98 km away · felt by 1
  35. 2.59 km E of Mutual, Oklahoma · 3319 days ago · 6 km deep · 91 km away
  36. 2.626 km ENE of Buffalo, Oklahoma · 3319 days ago · 1 km deep · 4 km away
  37. 2.816 km SE of Waynoka, Oklahoma · 3314 days ago · 6 km deep · 82 km away
  38. 2.917 km SE of Waynoka, Oklahoma · 3314 days ago · 7 km deep · 82 km away · felt by 3
  39. 2.52 km WSW of Aline, Oklahoma · 3310 days ago · 7 km deep · 99 km away · felt by 3
  40. 2.627 km NW of Freedom, Oklahoma · 3308 days ago · 2 km deep · 8 km away
  41. 2.79 km WSW of Waynoka, Oklahoma · 3307 days ago · 6 km deep · 64 km away
  42. 2.41 km SSE of Chester, Oklahoma · 3305 days ago · 6 km deep · 98 km away
  43. 2.91 km S of Chester, Oklahoma · 3305 days ago · 6 km deep · 98 km away · felt by 3
  44. 3.01 km SSW of Cherokee, Oklahoma · 3305 days ago · 8 km deep · 95 km away · felt by 4
  45. 2.41 km ESE of Chester, Oklahoma · 3304 days ago · 4 km deep · 98 km away
  46. 3.01 km SSW of Cherokee, Oklahoma · 3304 days ago · 8 km deep · 96 km away · felt by 1
  47. 2.717 km SSE of Waynoka, Oklahoma · 3302 days ago · 8 km deep · 82 km away

Before

  1. 2.46 km NE of Carmen, Oklahoma · 3361 days ago · 5 km deep · 97 km away
  2. 2.45 km NE of Carmen, Oklahoma · 3361 days ago · 5 km deep · 96 km away
  3. 2.65 km NE of Carmen, Oklahoma · 3361 days ago · 6 km deep · 97 km away
  4. 3.65 km NE of Carmen, Oklahoma · 3362 days ago · 5 km deep · 96 km away · felt by 13
  5. 2.617 km SSE of Waynoka, Oklahoma · 3368 days ago · 8 km deep · 82 km away
  6. 2.72 km ESE of Lambert, Oklahoma · 3370 days ago · 7 km deep · 95 km away · felt by 1
  7. 2.6Oklahoma · 3377 days ago · 3 km deep · 85 km away
  8. 2.8Oklahoma · 3380 days ago · 5 km deep · 70 km away
  9. 2.89 km SW of Waynoka, Oklahoma · 3380 days ago · 6 km deep · 64 km away
  10. 3.59 km SW of Waynoka, Oklahoma · 3380 days ago · 6 km deep · 64 km away · felt by 3
  11. 2.310 km NNE of Quinlan, Oklahoma · 3382 days ago · 5 km deep · 63 km away
  12. 2.86 km N of Buffalo, Oklahoma · 3385 days ago · 3 km deep · 25 km away · felt by 20
  13. 2.41 km NNW of Lambert, Oklahoma · 3386 days ago · 5 km deep · 92 km away
  14. 2.917 km SSE of Waynoka, Oklahoma · 3387 days ago · 1 km deep · 82 km away · felt by 4

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us20009yxl. Read Wed, Sep 30, 2026, 8:52 PM UTC.