Oklahoma earthquakes

M2.6 earthquake 4 km NNW of Helena, Oklahoma

A magnitude 2.6 earthquake struck 4 km NNW of Helena, Oklahoma on Fri, Sep 11, 2015, 6:06 PM CDT (23:06 UTC), 7 km (4 mi) below the surface.

A larger quake followed: M2.8 1 km NNE of Fairmont, Oklahoma. This one was a foreshock.

Helena 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
2.6 (ml), micro
Local time
UTC
2015-09-11 23:06:55 UTC
Depth
7.1 km (4.4 mi), shallow
Epicenter
36.584° N, 98.292° W
Region
Oklahoma
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

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 2.5 km horizontally, 6.3 km in depth
Station coverage gap
99°
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: 200 in the 60 days after this one and 0 in the 30 days before it.

After

  1. 2.55 km WNW of Medford, Oklahoma · 3985 days ago · 5 km deep · 52 km away
  2. 2.66 km WSW of Hunter, Oklahoma · 3985 days ago · 3 km deep · 51 km away
  3. 2.81 km NNE of Fairmont, Oklahoma · 3985 days ago · 6 km deep · 58 km away
  4. 2.4Oklahoma · 3985 days ago · 2 km deep · 76 km away · felt by 1
  5. 2.69 km W of Pond Creek, Oklahoma · 3985 days ago · 7 km deep · 36 km away
  6. 2.55 km NE of Billings, Oklahoma · 3985 days ago · 7 km deep · 79 km away
  7. 2.55 km W of Lucien, Oklahoma · 3985 days ago · 8 km deep · 77 km away
  8. 2.08 km ENE of Caldwell, Kansas · 3985 days ago · 6 km deep · 87 km away
  9. 3.41 km NNE of Fairmont, Oklahoma · 3985 days ago · 5 km deep · 58 km away · felt by 13
  10. 1.58 km ENE of Caldwell, Kansas · 3985 days ago · 6 km deep · 87 km away
  11. 2.58 km S of Lamont, Oklahoma · 3984 days ago · 4 km deep · 65 km away
  12. 2.711 km NE of Nash, Oklahoma · 3984 days ago · 7 km deep · 34 km away
  13. 2.68 km SSE of Lambert, Oklahoma · 3984 days ago · 8 km deep · 8 km away
  14. 2.8Oklahoma · 3984 days ago · 8 km deep · 89 km away · felt by 1
  15. 2.520 km W of Cleo Springs, Oklahoma · 3984 days ago · 5 km deep · 40 km away
  16. 3.310 km N of Caldwell, Kansas · 3984 days ago · 4 km deep · 85 km away · felt by 5
  17. 3.610 km N of Caldwell, Kansas · 3984 days ago · 4 km deep · 84 km away · felt by 14
  18. 2.59 km N of Caldwell, Kansas · 3984 days ago · 4 km deep · 84 km away
  19. 3.4Oklahoma · 3983 days ago · 3 km deep · 52 km away · felt by 1
  20. 2.85 km WNW of Medford, Oklahoma · 3983 days ago · 5 km deep · 52 km away
  21. 3.08 km NE of Marshall, Oklahoma · 3983 days ago · 5 km deep · 77 km away · felt by 1
  22. 2.612 km SSE of Milan, Kansas · 3983 days ago · 5 km deep · 87 km away · felt by 7
  23. 1.78 km SW of Bluff City, Kansas · 3983 days ago · 7 km deep · 58 km away
  24. 1.58 km SW of Bluff City, Kansas · 3983 days ago · 6 km deep · 58 km away
  25. 3.13 km NNW of Orlando, Oklahoma · 3983 days ago · 5 km deep · 93 km away · felt by 4
  26. 2.85 km W of Lucien, Oklahoma · 3983 days ago · 8 km deep · 77 km away
  27. 3.37 km SE of Avard, Oklahoma · 3983 days ago · 4 km deep · 39 km away
  28. 1.59 km N of Caldwell, Kansas · 3983 days ago · 4 km deep · 84 km away
  29. 2.07 km ENE of Caldwell, Kansas · 3983 days ago · 6 km deep · 86 km away · felt by 2
  30. 2.511 km NE of Nash, Oklahoma · 3983 days ago · 6 km deep · 35 km away
  31. 2.88 km N of Hunter, Oklahoma · 3982 days ago · 5 km deep · 56 km away
  32. 3.18 km ESE of Jefferson, Oklahoma · 3982 days ago · 0 km deep · 55 km away
  33. 2.56 km NNE of Avard, Oklahoma · 3982 days ago · 3 km deep · 46 km away
  34. 2.69 km N of Caldwell, Kansas · 3982 days ago · 4 km deep · 84 km away
  35. 3.014 km SE of Billings, Oklahoma · 3982 days ago · 1 km deep · 87 km away · felt by 3
  36. 2.24 km NNE of Danville, Kansas · 3982 days ago · 4 km deep · 91 km away
  37. 2.04 km NNE of Danville, Kansas · 3982 days ago · 2 km deep · 90 km away
  38. 2.79 km ENE of Cherokee, Oklahoma · 3982 days ago · 5 km deep · 23 km away
  39. 2.85 km WNW of Medford, Oklahoma · 3981 days ago · 3 km deep · 52 km away
  40. 2.54 km WNW of Medford, Oklahoma · 3981 days ago · 3 km deep · 53 km away
  41. 1.811 km ESE of Bluff City, Kansas · 3981 days ago · 3 km deep · 71 km away
  42. 1.911 km ESE of Bluff City, Kansas · 3981 days ago · 4 km deep · 71 km away
  43. 1.77 km ENE of Caldwell, Kansas · 3981 days ago · 6 km deep · 86 km away
  44. 1.87 km ENE of Caldwell, Kansas · 3981 days ago · 6 km deep · 86 km away
  45. 2.34 km SSE of Anthony, Kansas · 3981 days ago · 6 km deep · 64 km away
  46. 2.78 km S of Perry, Oklahoma · 3981 days ago · 6 km deep · 99 km away
  47. 1.84 km S of Anthony, Kansas · 3981 days ago · 7 km deep · 64 km away
  48. 3.412 km SSE of Milan, Kansas · 3981 days ago · 5 km deep · 87 km away · felt by 36
  49. 1.89 km N of Caldwell, Kansas · 3980 days ago · 4 km deep · 84 km away
  50. 3.13 km SSE of Alva, Oklahoma · 3980 days ago · 2 km deep · 39 km away · felt by 7
  51. 2.75 km NNW of Ames, Oklahoma · 3980 days ago · 7 km deep · 33 km away
  52. 1.67 km ENE of Caldwell, Kansas · 3980 days ago · 6 km deep · 87 km away
  53. 2.67 km ENE of Caldwell, Kansas · 3980 days ago · 6 km deep · 86 km away
  54. 3.610 km SSE of Marshall, Oklahoma · 3980 days ago · 5 km deep · 86 km away · felt by 6
  55. 1.910 km N of Caldwell, Kansas · 3980 days ago · 4 km deep · 85 km away
  56. 3.35 km NE of Avard, Oklahoma · 3980 days ago · 4 km deep · 44 km away · felt by 4
  57. 2.55 km WSW of Marland, Oklahoma · 3980 days ago · 7 km deep · 97 km away
  58. 1.68 km NNE of Anthony, Kansas · 3980 days ago · 5 km deep · 75 km away
  59. 2.63 km SSE of Alva, Oklahoma · 3980 days ago · 5 km deep · 39 km away
  60. 2.612 km ESE of Bluff City, Kansas · 3980 days ago · 3 km deep · 71 km away · felt by 2

The first 60 of 200.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us20003ks5. Read Tue, Sep 22, 2026, 8:21 PM UTC.