Oklahoma earthquakes

M3.8 earthquake 7 km S of Byron, Oklahoma

A magnitude 3.8 earthquake struck 7 km S of Byron, Oklahoma on Mon, Nov 23, 2015, 3:36 PM CST (21:36 UTC), 4 km (3 mi) below the surface.

A larger quake followed: M4.0 16 km SE of Waynoka, 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
3.8 (ml), minor
Local time
UTC
2015-11-23 21:36:18 UTC
Depth
4.3 km (2.7 mi), shallow
Epicenter
36.833° N, 98.291° W
Region
Oklahoma
Felt reports
13
Tsunami flag
No
Status
Reviewed by a seismologist

Shaking

The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.

Map
Automatic
USGS ShakeMap: estimated shaking intensity around the epicenter
Estimated shaking intensity. Map: USGS ShakeMap.

Did you feel it?

13 people reported to the USGS what they felt; the strongest reported shaking was IV, light 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 2.5 km horizontally, 6.9 km in depth
Station coverage gap
95°
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. 2.79 km NNE of Quinlan, Oklahoma · 3921 days ago · 8 km deep · 72 km away
  2. 1.67 km NE of Bluff City, Kansas · 3921 days ago · 4 km deep · 53 km away
  3. 3.07 km S of Byron, Oklahoma · 3920 days ago · 5 km deep · 1 km away
  4. 3.116 km SSE of Waynoka, Oklahoma · 3920 days ago · 5 km deep · 63 km away · felt by 12
  5. 2.63 km E of Milan, Kansas · 3920 days ago · 6 km deep · 75 km away · felt by 3
  6. 3.08 km S of Waynoka, Oklahoma · 3919 days ago · 16 km deep · 65 km away · felt by 11
  7. 3.77 km NNE of Nash, Oklahoma · 3919 days ago · 7 km deep · 28 km away · felt by 5
  8. 1.95 km SW of Harper, Kansas · 3919 days ago · 3 km deep · 51 km away
  9. 3.37 km E of Carmen, Oklahoma · 3919 days ago · 5 km deep · 28 km away · felt by 2
  10. 2.13 km E of Milan, Kansas · 3919 days ago · 6 km deep · 76 km away
  11. 2.2Kansas · 3919 days ago · 5 km deep · 40 km away
  12. 2.27 km SSW of Anthony, Kansas · 3918 days ago · 5 km deep · 35 km away
  13. 3.04 km NW of Medford, Oklahoma · 3918 days ago · 5 km deep · 47 km away
  14. 1.86 km WNW of Freeport, Kansas · 3918 days ago · 5 km deep · 53 km away
  15. 3.27 km ENE of Waynoka, Oklahoma · 3918 days ago · 6 km deep · 52 km away · felt by 3
  16. 2.311 km NNW of Caldwell, Kansas · 3918 days ago · 6 km deep · 65 km away · felt by 1
  17. 2.0Kansas · 3918 days ago · 1 km deep · 52 km away
  18. 2.711 km NNW of Caldwell, Kansas · 3918 days ago · 6 km deep · 65 km away
  19. 2.14 km N of Jefferson, Oklahoma · 3917 days ago · 5 km deep · 46 km away · felt by 1
  20. 1.83 km NW of Freeport, Kansas · 3917 days ago · 3 km deep · 57 km away
  21. 2.75 km NW of Ames, Oklahoma · 3917 days ago · 6 km deep · 61 km away · felt by 1
  22. 2.55 km WNW of Cleo Springs, Oklahoma · 3917 days ago · 4 km deep · 49 km away
  23. 3.010 km W of Medford, Oklahoma · 3917 days ago · 5 km deep · 39 km away · felt by 1
  24. 2.111 km NNW of Caldwell, Kansas · 3917 days ago · 6 km deep · 65 km away
  25. 1.611 km NNW of Caldwell, Kansas · 3917 days ago · 5 km deep · 65 km away
  26. 2.916 km SE of Waynoka, Oklahoma · 3916 days ago · 7 km deep · 55 km away
  27. 3.016 km SE of Waynoka, Oklahoma · 3916 days ago · 8 km deep · 55 km away · felt by 1
  28. 3.02 km NE of Medford, Oklahoma · 3916 days ago · 6 km deep · 52 km away · felt by 2
  29. 1.55 km W of Mayfield, Kansas · 3916 days ago · 5 km deep · 77 km away
  30. 3.10 km N of Lucien, Oklahoma · 3916 days ago · 7 km deep · 97 km away · felt by 3
  31. 2.68 km E of Nescatunga, Oklahoma · 3916 days ago · 6 km deep · 22 km away
  32. 2.815 km SE of Waynoka, Oklahoma · 3916 days ago · 8 km deep · 59 km away · felt by 4
  33. 3.30 km WNW of Lucien, Oklahoma · 3915 days ago · 7 km deep · 97 km away · felt by 2
  34. 2.70 km NNE of Lucien, Oklahoma · 3915 days ago · 7 km deep · 97 km away · felt by 1
  35. 1.69 km N of Wakita, Oklahoma · 3915 days ago · 2 km deep · 35 km away
  36. 2.210 km SE of Bluff City, Kansas · 3915 days ago · 3 km deep · 50 km away
  37. 2.88 km NNE of Quinlan, Oklahoma · 3915 days ago · 5 km deep · 72 km away · felt by 2
  38. 1.52 km E of Anthony, Kansas · 3915 days ago · 6 km deep · 44 km away
  39. 1.97 km N of Harper, KS · 3914 days ago · 6 km deep · 62 km away
  40. 2.77 km N of Nash, Oklahoma · 3914 days ago · 6 km deep · 23 km away · felt by 1
  41. 1.88 km SSE of Anthony, Kansas · 3914 days ago · 7 km deep · 40 km away
  42. 2.97 km N of Nash, Oklahoma · 3913 days ago · 6 km deep · 23 km away · felt by 1
  43. 1.74 km SSW of Argonia, Kansas · 3913 days ago · 4 km deep · 63 km away
  44. 2.66 km S of Byron, Oklahoma · 3912 days ago · 5 km deep · 1 km away
  45. 2.87 km N of Nash, Oklahoma · 3912 days ago · 6 km deep · 23 km away · felt by 1
  46. 4.016 km SE of Waynoka, Oklahoma · 3912 days ago · 9 km deep · 55 km away · felt by 16
  47. 3.27 km NNE of Nash, Oklahoma · 3912 days ago · 6 km deep · 27 km away · felt by 2
  48. 3.916 km SE of Waynoka, Oklahoma · 3912 days ago · 7 km deep · 55 km away · felt by 6
  49. 1.96 km S of Anthony, Kansas · 3911 days ago · 5 km deep · 37 km away
  50. 3.216 km SE of Waynoka, Oklahoma · 3911 days ago · 4 km deep · 55 km away
  51. 4.416 km SE of Waynoka, Oklahoma · 3911 days ago · 7 km deep · 56 km away · felt by 71
  52. 4.716 km SE of Waynoka, Oklahoma · 3911 days ago · 4 km deep · 54 km away · felt by 2,713
  53. 2.618 km ESE of Waynoka, Oklahoma · 3911 days ago · 1 km deep · 50 km away · felt by 2
  54. 3.616 km SE of Waynoka, Oklahoma · 3911 days ago · 8 km deep · 56 km away
  55. 2.916 km SE of Waynoka, Oklahoma · 3911 days ago · 6 km deep · 55 km away
  56. 2.716 km SE of Waynoka, Oklahoma · 3911 days ago · 7 km deep · 56 km away
  57. 3.516 km SE of Waynoka, Oklahoma · 3911 days ago · 7 km deep · 56 km away · felt by 24
  58. 3.116 km SE of Waynoka, Oklahoma · 3911 days ago · 8 km deep · 56 km away
  59. 3.317 km ESE of Waynoka, Oklahoma · 3911 days ago · 8 km deep · 50 km away · felt by 7
  60. 2.716 km SE of Waynoka, Oklahoma · 3911 days ago · 7 km deep · 56 km away

The first 60 of 200.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us100040ji. Read Tue, Sep 22, 2026, 6:56 AM UTC.