Oklahoma earthquakes

M3.3 earthquake 5 km SSE of Helena, Oklahoma

A magnitude 3.3 earthquake struck 5 km SSE of Helena, Oklahoma on Wed, Apr 5, 2017, 3:14 AM CDT (08:14 UTC), 8 km (5 mi) below the surface.

A larger quake followed: M3.5 7 km NNW of Orlando, 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
3.3 (ml), minor
Local time
UTC
2017-04-05 08:14:35 UTC
Depth
7.6 km (4.7 mi), shallow
Epicenter
36.507° N, 98.238° 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 1.0 km horizontally, 3.2 km in depth
Station coverage gap
64°
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: 194 in the 60 days after this one and 5 in the 30 days before it.

After

  1. 2.615 km WNW of Alva, Oklahoma · 3457 days ago · 3 km deep · 66 km away
  2. 2.09 km W of Bluff City, Kansas · 3456 days ago · 7 km deep · 67 km away
  3. 1.79 km W of Bluff City, Kansas · 3455 days ago · 7 km deep · 67 km away
  4. 3.29 km SW of Waynoka, Oklahoma · 3455 days ago · 6 km deep · 66 km away
  5. 2.710 km SE of Perry, Oklahoma · 3455 days ago · 6 km deep · 98 km away
  6. 3.117 km SSE of Waynoka, Oklahoma · 3455 days ago · 8 km deep · 49 km away
  7. 2.917 km SSE of Waynoka, Oklahoma · 3455 days ago · 8 km deep · 49 km away
  8. 2.817 km SE of Waynoka, Oklahoma · 3455 days ago · 7 km deep · 47 km away
  9. 3.017 km SSE of Waynoka, Oklahoma · 3455 days ago · 6 km deep · 50 km away · felt by 1
  10. 2.715 km WNW of Alva, Oklahoma · 3454 days ago · 4 km deep · 66 km away
  11. 2.42 km SW of Anthony, Kansas · 3454 days ago · 6 km deep · 73 km away · felt by 2
  12. 2.712 km NNW of Caldwell, Kansas · 3454 days ago · 6 km deep · 86 km away · felt by 1
  13. 2.111 km NNW of Caldwell, Kansas · 3453 days ago · 5 km deep · 87 km away
  14. 1.92 km WSW of Anthony, Kansas · 3453 days ago · 6 km deep · 73 km away
  15. 2.64 km NE of Avard, Oklahoma · 3453 days ago · 7 km deep · 53 km away
  16. 2.510 km SSE of Waldron, Kansas · 3453 days ago · 10 km deep · 47 km away
  17. 2.810 km SSE of Waldron, Kansas · 3453 days ago · 9 km deep · 47 km away
  18. 3.010 km SSE of Waldron, Kansas · 3452 days ago · 8 km deep · 47 km away · felt by 6
  19. 1.611 km NNW of Caldwell, Kansas · 3452 days ago · 5 km deep · 87 km away
  20. 1.612 km NNW of Caldwell, Kansas · 3452 days ago · 4 km deep · 86 km away
  21. 2.51 km N of Lambert, Oklahoma · 3452 days ago · 5 km deep · 27 km away
  22. 1.811 km NNW of Caldwell, Kansas · 3452 days ago · 5 km deep · 87 km away
  23. 1.911 km NNW of Caldwell, Kansas · 3452 days ago · 5 km deep · 87 km away
  24. 2.610 km ENE of Orlando, Oklahoma · 3452 days ago · 6 km deep · 94 km away
  25. 2.54 km WNW of Lucien, Oklahoma · 3451 days ago · 6 km deep · 70 km away
  26. 2.03 km NNW of Freeport, Kansas · 3451 days ago · 4 km deep · 86 km away
  27. 2.011 km NNW of Caldwell, Kansas · 3451 days ago · 5 km deep · 87 km away
  28. 2.915 km WNW of Alva, Oklahoma · 3450 days ago · 5 km deep · 65 km away · felt by 1
  29. 1.83 km NNW of Freeport, Kansas · 3450 days ago · 4 km deep · 87 km away
  30. 2.26 km NE of Watonga, Oklahoma · 3449 days ago · 8 km deep · 70 km away
  31. 3.210 km W of Lamont, Oklahoma · 3449 days ago · 10 km deep · 55 km away · felt by 9
  32. 3.110 km W of Lamont, Oklahoma · 3449 days ago · 9 km deep · 55 km away · felt by 2
  33. 2.93 km NNW of Freeport, Kansas · 3448 days ago · 4 km deep · 86 km away · felt by 2
  34. 2.36 km SW of Okarche, Oklahoma · 3447 days ago · 7 km deep · 93 km away · felt by 1
  35. 3.57 km NNW of Orlando, Oklahoma · 3446 days ago · 8 km deep · 80 km away · felt by 12
  36. 2.52 km SW of Waldron, Kansas · 3446 days ago · 4 km deep · 54 km away
  37. 3.17 km NNW of Orlando, Oklahoma · 3446 days ago · 6 km deep · 80 km away
  38. 1.52 km NE of Caldwell, Kansas · 3445 days ago · 5 km deep · 83 km away
  39. 2.76 km SW of Okarche, Oklahoma · 3445 days ago · 6 km deep · 95 km away
  40. 2.87 km NNW of Orlando, Oklahoma · 3445 days ago · 8 km deep · 80 km away · felt by 2
  41. 1.65 km SSE of Freeport, Kansas · 3445 days ago · 4 km deep · 81 km away
  42. 2.714 km WNW of Canton, Oklahoma · 3444 days ago · 5 km deep · 61 km away
  43. 2.59 km W of Bluff City, Kansas · 3444 days ago · 7 km deep · 67 km away
  44. 2.79 km W of Bluff City, Kansas · 3444 days ago · 8 km deep · 67 km away · felt by 1
  45. 3.07 km SSE of Lucien, Oklahoma · 3444 days ago · 8 km deep · 80 km away · felt by 3
  46. 1.611 km NNW of Caldwell, Kansas · 3443 days ago · 5 km deep · 87 km away
  47. 2.51 km SSE of Hennessey, Oklahoma · 3443 days ago · 6 km deep · 55 km away
  48. 3.19 km W of Lamont, Oklahoma · 3442 days ago · 8 km deep · 55 km away · felt by 3
  49. 3.23 km SE of Meno, Oklahoma · 3442 days ago · 5 km deep · 18 km away · felt by 2
  50. 2.55 km WNW of Medford, Oklahoma · 3441 days ago · 8 km deep · 54 km away · felt by 2
  51. 1.64 km ESE of Harper, Kansas · 3440 days ago · 1 km deep · 87 km away
  52. 2.33 km NNW of Freeport, Kansas · 3440 days ago · 3 km deep · 87 km away
  53. 2.59 km W of Lamont, Oklahoma · 3440 days ago · 3 km deep · 55 km away
  54. 3.0Oklahoma · 3440 days ago · 6 km deep · 55 km away · felt by 1
  55. 3.69 km W of Lamont, Oklahoma · 3440 days ago · 8 km deep · 55 km away · felt by 7
  56. 1.72 km E of Anthony, Kansas · 3438 days ago · 6 km deep · 75 km away
  57. 2.65 km WNW of Medford, Oklahoma · 3438 days ago · 6 km deep · 54 km away
  58. 1.910 km N of Caldwell, Kansas · 3438 days ago · 4 km deep · 89 km away
  59. 3.38 km ENE of Cherokee, Oklahoma · 3437 days ago · 3 km deep · 32 km away · felt by 5
  60. 1.82 km E of Anthony, Kansas · 3437 days ago · 6 km deep · 75 km away

The first 60 of 194.

Before

  1. 2.56 km SW of Goltry, Oklahoma · 3457 days ago · 7 km deep · 4 km away
  2. 2.42 km W of Hennessey, Oklahoma · 3457 days ago · 5 km deep · 52 km away
  3. 2.82 km W of Hennessey, Oklahoma · 3457 days ago · 6 km deep · 52 km away
  4. 2.510 km NE of Quinlan, Oklahoma · 3457 days ago · 6 km deep · 66 km away
  5. 2.94 km WNW of Ringwood, Oklahoma · 3457 days ago · 8 km deep · 14 km away · felt by 1

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us10008eiq. Read Tue, Sep 22, 2026, 7:13 AM UTC.