Oklahoma earthquakes

M2.5 earthquake 4 km N of Harrah, Oklahoma

A magnitude 2.5 earthquake struck 4 km N of Harrah, Oklahoma on Sun, May 20, 2018, 5:58 PM CDT (22:58 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M4.0 Oklahoma. This one was a foreshock.

Harrah 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
2.5 (ml), micro
Local time
UTC
2018-05-20 22:58:00 UTC
Depth
5.4 km (3.4 mi), shallow
Epicenter
35.526° N, 97.155° W
Region
Oklahoma
Felt reports
1
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

1 person reported to the USGS what they felt; the strongest reported shaking was II, 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?

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 0.9 km horizontally, 3.4 km in depth
Station coverage gap
37°
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: 61 in the 60 days after this one and 32 in the 30 days before it.

After

  1. 2.510 km SSE of Marshall, Oklahoma · 3053 days ago · 7 km deep · 71 km away
  2. 3.46 km WNW of Arcadia, Oklahoma · 3053 days ago · 5 km deep · 27 km away · felt by 24
  3. 2.411 km WSW of Shamrock, Oklahoma · 3051 days ago · 6 km deep · 56 km away
  4. 3.21 km ENE of Cushing, Oklahoma · 3049 days ago · 4 km deep · 64 km away · felt by 15
  5. 2.211 km NW of Marshall, OK · 3049 days ago · 5 km deep · 71 km away
  6. 2.89 km WNW of Prague, Oklahoma · 3045 days ago · 6 km deep · 34 km away · felt by 1
  7. 2.68 km NE of Marshall, Oklahoma · 3044 days ago · 6 km deep · 86 km away
  8. 2.615 km W of Union City, Oklahoma · 3043 days ago · 8 km deep · 88 km away · felt by 2
  9. 2.75 km WNW of Lucien, Oklahoma · 3039 days ago · 8 km deep · 91 km away
  10. 3.06 km S of Perry, Oklahoma · 3038 days ago · 7 km deep · 79 km away · felt by 5
  11. 3.15 km WNW of Lucien, Oklahoma · 3037 days ago · 6 km deep · 90 km away · felt by 5
  12. 2.410 km SE of Marshall, Oklahoma · 3037 days ago · 5 km deep · 71 km away
  13. 2.74 km W of Lucien, Oklahoma · 3037 days ago · 6 km deep · 90 km away · felt by 1
  14. 2.45 km WNW of Lucien, Oklahoma · 3037 days ago · 8 km deep · 90 km away
  15. 3.25 km WNW of Lucien, Oklahoma · 3036 days ago · 7 km deep · 90 km away
  16. 2.66 km E of Hennessey, Oklahoma · 3035 days ago · 3 km deep · 88 km away
  17. 2.411 km WSW of Marshall, Oklahoma · 3034 days ago · 5 km deep · 84 km away
  18. 2.44 km NE of Coyle, Oklahoma · 3030 days ago · 7 km deep · 50 km away
  19. 4.0Oklahoma · 3029 days ago · 7 km deep · 71 km away · felt by 154
  20. 2.910 km SSE of Marshall, Oklahoma · 3029 days ago · 7 km deep · 71 km away
  21. 2.910 km SSE of Marshall, Oklahoma · 3029 days ago · 7 km deep · 71 km away · felt by 6
  22. 2.610 km SSE of Marshall, Oklahoma · 3029 days ago · 8 km deep · 71 km away
  23. 3.310 km SSE of Marshall, Oklahoma · 3028 days ago · 6 km deep · 71 km away · felt by 7
  24. 2.410 km SSE of Marshall, Oklahoma · 3027 days ago · 5 km deep · 71 km away
  25. 2.510 km SE of Marshall, Oklahoma · 3026 days ago · 6 km deep · 71 km away · felt by 1
  26. 2.610 km SE of Marshall, Oklahoma · 3026 days ago · 6 km deep · 71 km away
  27. 2.712 km WSW of Union City, Oklahoma · 3026 days ago · 8 km deep · 85 km away · felt by 2
  28. 2.511 km WSW of Union City, Oklahoma · 3026 days ago · 7 km deep · 85 km away
  29. 3.111 km WSW of Union City, Oklahoma · 3025 days ago · 7 km deep · 85 km away · felt by 1
  30. 3.84 km W of Lucien, Oklahoma · 3025 days ago · 8 km deep · 89 km away · felt by 5
  31. 2.912 km WSW of Union City, Oklahoma · 3024 days ago · 7 km deep · 86 km away
  32. 3.25 km E of Hennessey, Oklahoma · 3023 days ago · 5 km deep · 89 km away · felt by 15
  33. 2.24 km W of Bridge Creek, Oklahoma · 3022 days ago · 6 km deep · 65 km away · felt by 1
  34. 2.42 km NE of Kendrick, Oklahoma · 3022 days ago · 7 km deep · 47 km away · felt by 1
  35. 1.91 km NE of Kendrick, Oklahoma · 3022 days ago · 4 km deep · 46 km away · felt by 1
  36. 2.89 km SSW of Washington, Oklahoma · 3018 days ago · 3 km deep · 70 km away · felt by 1
  37. 2.53 km ESE of Luther, Oklahoma · 3018 days ago · 6 km deep · 14 km away
  38. 2.915 km W of Union City, Oklahoma · 3015 days ago · 5 km deep · 88 km away · felt by 7
  39. 3.115 km W of Union City, Oklahoma · 3014 days ago · 12 km deep · 88 km away · felt by 1
  40. 2.96 km NNW of Meridian, Oklahoma · 3014 days ago · 5 km deep · 42 km away · felt by 3
  41. 2.85 km NNW of Meridian, Oklahoma · 3014 days ago · 7 km deep · 42 km away · felt by 1
  42. 3.26 km NNW of Meridian, Oklahoma · 3014 days ago · 6 km deep · 42 km away · felt by 16
  43. 2.715 km W of Union City, Oklahoma · 3013 days ago · 7 km deep · 88 km away · felt by 1
  44. 3.010 km E of Dover, Oklahoma · 3012 days ago · 6 km deep · 76 km away · felt by 6
  45. 3.56 km NNW of Meridian, Oklahoma · 3012 days ago · 6 km deep · 42 km away · felt by 6
  46. 2.8Oklahoma · 3011 days ago · 5 km deep · 85 km away
  47. 2.38 km SSW of Washington, Oklahoma · 3008 days ago · 5 km deep · 69 km away
  48. 2.28 km ESE of Dibble, Oklahoma · 3008 days ago · 5 km deep · 69 km away · felt by 3
  49. 2.54 km W of Lucien, Oklahoma · 3006 days ago · 7 km deep · 89 km away
  50. 3.45 km ESE of Covington, Oklahoma · 3004 days ago · 8 km deep · 92 km away · felt by 40
  51. 2.65 km ESE of Covington, Oklahoma · 3004 days ago · 7 km deep · 92 km away
  52. 2.59 km SSW of Washington, Oklahoma · 3004 days ago · 6 km deep · 69 km away
  53. 2.813 km ESE of Dover, Oklahoma · 3004 days ago · 5 km deep · 73 km away
  54. 2.34 km WNW of Cushing, Oklahoma · 3002 days ago · 6 km deep · 60 km away · felt by 1
  55. 2.12 km NE of Agra, Oklahoma · 3000 days ago · 9 km deep · 51 km away · felt by 1
  56. 2.94 km W of Lucien, Oklahoma · 2998 days ago · 6 km deep · 89 km away · felt by 2
  57. 2.42 km NNW of Tuttle, Oklahoma · 2997 days ago · 5 km deep · 65 km away · felt by 1
  58. 3.15 km E of Edmond, Oklahoma · 2997 days ago · 6 km deep · 27 km away · felt by 207
  59. 2.69 km SE of Dibble, Oklahoma · 2996 days ago · 6 km deep · 70 km away · felt by 2
  60. 2.55 km SSW of Langston, Oklahoma · 2995 days ago · 8 km deep · 43 km away · felt by 10

The first 60 of 61.

Before

  1. 3.710 km SSE of Marshall, Oklahoma · 3058 days ago · 6 km deep · 71 km away · felt by 7
  2. 2.610 km SSE of Marshall, Oklahoma · 3058 days ago · 8 km deep · 71 km away
  3. 2.510 km SE of Marshall, Oklahoma · 3059 days ago · 7 km deep · 71 km away
  4. 2.11 km SE of Choctaw, Oklahoma · 3059 days ago · 5 km deep · 10 km away · felt by 1
  5. 2.610 km SSE of Marshall, Oklahoma · 3059 days ago · 7 km deep · 71 km away · felt by 2
  6. 2.710 km SSE of Marshall, Oklahoma · 3059 days ago · 7 km deep · 71 km away
  7. 2.610 km SE of Marshall, Oklahoma · 3059 days ago · 7 km deep · 71 km away · felt by 1
  8. 2.810 km SSE of Marshall, Oklahoma · 3060 days ago · 7 km deep · 71 km away
  9. 4.010 km SSE of Marshall, Oklahoma · 3060 days ago · 6 km deep · 71 km away · felt by 117
  10. 2.410 km SSE of Marshall, Oklahoma · 3060 days ago · 7 km deep · 71 km away · felt by 1
  11. 2.910 km SSE of Marshall, Oklahoma · 3061 days ago · 7 km deep · 71 km away · felt by 6
  12. 2.310 km SSE of Marshall, Oklahoma · 3061 days ago · 7 km deep · 71 km away
  13. 3.010 km SSE of Marshall, Oklahoma · 3061 days ago · 8 km deep · 71 km away · felt by 11
  14. 2.610 km SSE of Marshall, Oklahoma · 3061 days ago · 8 km deep · 71 km away · felt by 1
  15. 4.010 km SSE of Marshall, Oklahoma · 3061 days ago · 7 km deep · 71 km away · felt by 182
  16. 2.510 km SSE of Marshall, Oklahoma · 3062 days ago · 8 km deep · 71 km away
  17. 2.510 km SSE of Marshall, Oklahoma · 3062 days ago · 7 km deep · 71 km away
  18. 3.010 km SSE of Marshall, Oklahoma · 3062 days ago · 8 km deep · 71 km away
  19. 2.810 km SSE of Marshall, Oklahoma · 3062 days ago · 8 km deep · 71 km away · felt by 3
  20. 3.710 km SSE of Marshall, Oklahoma · 3062 days ago · 7 km deep · 71 km away · felt by 122

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us1000e94h. Read Wed, Sep 30, 2026, 5:47 PM UTC.