Kansas earthquakes

M4.0 earthquake 6 km NNW of Sun City, Kansas

A magnitude 4.0 earthquake struck 6 km NNW of Sun City, Kansas on Sat, May 23, 2015, 1:44 PM CDT (18:44 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M4.1 3 km SW of Danville, Kansas. This one was a foreshock.

Haviland forecastMore in Kansas

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
4.0 (mwr), light
Local time
UTC
2015-05-23 18:44:28 UTC
Depth
5.0 km (3.1 mi), shallow
Epicenter
37.429° N, 98.954° W
Region
Kansas
Felt reports
274
Strongest shaking
IV, light shaking
PAGER alert
Green
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.

Strongest estimated
IV, light shaking
Map
Automatic
USGS ShakeMap: estimated shaking intensity around the epicenter
Estimated shaking intensity. Map: USGS ShakeMap.

Did you feel it?

274 people reported to the USGS what they felt; the strongest reported shaking was VI, strong shaking.

Did You Feel It? map: shaking reported by the public
Shaking reported by the public, by area. Map: USGS Did You Feel It?

Estimated impact

The USGS PAGER system estimates deaths and economic losses from the shaking and the population and buildings exposed to it.

Alert level
Green: little or no damage or loss of life expected

Fault motion and ground failure

How the rock slipped, from the moment tensor, and the USGS estimate of landslides and liquefaction.

Faulting
Normal
Moment magnitude
4.0 Mwr
Nodal plane 1
Strike 263°, dip 37°, rake -107°
Nodal plane 2
Strike 105°, dip 55°, rake -77°

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 2.7 km horizontally, 1.8 km in depth
Magnitude uncertainty
±0.06
Depth from
Operator assigned
Station coverage gap
15°
Stations used
393

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 168 in the 60 days after this one and 31 in the 30 days before it.

After

  1. 1.57 km S of Anthony, Kansas · 4139 days ago · 6 km deep · 89 km away
  2. 1.77 km SSE of Anthony, Kansas · 4139 days ago · 6 km deep · 92 km away
  3. 1.67 km ENE of Manchester, Oklahoma · 4139 days ago · 6 km deep · 99 km away
  4. 1.66 km WSW of Bluff City, Kansas · 4138 days ago · 5 km deep · 99 km away
  5. 1.58 km NE of Anthony, Kansas · 4136 days ago · 6 km deep · 91 km away
  6. 1.84 km S of Harper, Kansas · 4134 days ago · 4 km deep · 84 km away
  7. 1.62 km NW of Freeport, Kansas · 4134 days ago · 2 km deep · 98 km away
  8. 1.72 km NW of Freeport, Kansas · 4134 days ago · 2 km deep · 98 km away
  9. 3.19 km NW of Dacoma, Oklahoma · 4132 days ago · 5 km deep · 85 km away
  10. 2.710 km SSE of Capron, Oklahoma · 4131 days ago · 6 km deep · 79 km away · felt by 1
  11. 1.87 km S of Anthony, Kansas · 4131 days ago · 6 km deep · 90 km away
  12. 1.87 km S of Anthony, Kansas · 4131 days ago · 6 km deep · 90 km away
  13. 1.54 km S of Harper, Kansas · 4131 days ago · 3 km deep · 84 km away
  14. 2.810 km NW of Dacoma, Oklahoma · 4130 days ago · 5 km deep · 84 km away
  15. 2.510 km NE of Quinlan, Oklahoma · 4130 days ago · 3 km deep · 100 km away · felt by 1
  16. 2.513 km NNE of Nescatunga, Oklahoma · 4129 days ago · 5 km deep · 97 km away
  17. 3.210 km SSE of Capron, Oklahoma · 4129 days ago · 5 km deep · 79 km away
  18. 2.15 km WSW of Bluff City, Kansas · 4128 days ago · 7 km deep · 100 km away
  19. 1.64 km S of Harper, Kansas · 4128 days ago · 4 km deep · 84 km away
  20. 2.611 km NNE of Quinlan, Oklahoma · 4128 days ago · 5 km deep · 98 km away
  21. 2.96 km NNW of Dacoma, Oklahoma · 4127 days ago · 5 km deep · 86 km away
  22. 2.86 km ESE of Harper, Kansas · 4127 days ago · 8 km deep · 90 km away
  23. 3.28 km WNW of Freeport, Kansas · 4127 days ago · 7 km deep · 91 km away · felt by 2
  24. 2.08 km SW of Danville, Kansas · 4127 days ago · 5 km deep · 90 km away
  25. 1.68 km SE of Harper, Kansas · 4127 days ago · 5 km deep · 90 km away
  26. 2.68 km SE of Harper, Kansas · 4127 days ago · 5 km deep · 90 km away
  27. 2.58 km SE of Harper, Kansas · 4127 days ago · 5 km deep · 90 km away
  28. 1.68 km SE of Harper, Kansas · 4127 days ago · 5 km deep · 90 km away
  29. 3.69 km SE of Harper, Kansas · 4127 days ago · 5 km deep · 90 km away
  30. 4.13 km SW of Danville, Kansas · 4127 days ago · 2 km deep · 93 km away · felt by 43
  31. 2.27 km SE of Harper, Kansas · 4127 days ago · 4 km deep · 89 km away
  32. 1.87 km SE of Harper, Kansas · 4127 days ago · 5 km deep · 90 km away
  33. 2.37 km SW of Danville, Kansas · 4127 days ago · 4 km deep · 91 km away
  34. 2.48 km SW of Danville, Kansas · 4127 days ago · 5 km deep · 91 km away
  35. 1.97 km SE of Harper, Kansas · 4127 days ago · 5 km deep · 90 km away
  36. 1.68 km SE of Harper, Kansas · 4127 days ago · 4 km deep · 90 km away
  37. 2.48 km SE of Harper, Kansas · 4127 days ago · 5 km deep · 90 km away
  38. 2.18 km SE of Harper, Kansas · 4127 days ago · 5 km deep · 90 km away
  39. 2.07 km SW of Danville, Kansas · 4127 days ago · 5 km deep · 91 km away
  40. 1.61 km NE of Manchester, Oklahoma · 4127 days ago · 3 km deep · 95 km away
  41. 1.67 km SE of Harper, Kansas · 4126 days ago · 4 km deep · 90 km away
  42. 1.78 km SE of Harper, Kansas · 4126 days ago · 3 km deep · 91 km away
  43. 1.98 km SE of Harper, Kansas · 4126 days ago · 3 km deep · 90 km away
  44. 2.37 km SW of Danville, Kansas · 4126 days ago · 4 km deep · 91 km away
  45. 1.68 km SE of Harper, Kansas · 4126 days ago · 3 km deep · 90 km away
  46. 2.02 km SSW of Manchester, Oklahoma · 4125 days ago · 1 km deep · 95 km away
  47. 2.74 km S of Harper, Kansas · 4125 days ago · 5 km deep · 84 km away
  48. 2.38 km SE of Harper, Kansas · 4125 days ago · 3 km deep · 90 km away
  49. 2.36 km E of Manchester, Oklahoma · 4125 days ago · 7 km deep · 100 km away
  50. 3.48 km SW of Danville, Kansas · 4124 days ago · 6 km deep · 91 km away · felt by 9
  51. 1.57 km SW of Danville, Kansas · 4124 days ago · 2 km deep · 91 km away
  52. 1.77 km SE of Harper, Kansas · 4124 days ago · 4 km deep · 90 km away
  53. 1.87 km NNE of Anthony, Kansas · 4123 days ago · 4 km deep · 88 km away
  54. 1.62 km SSW of Manchester, Oklahoma · 4123 days ago · 3 km deep · 95 km away
  55. 3.36 km W of Nescatunga, Oklahoma · 4123 days ago · 5 km deep · 100 km away · felt by 1
  56. 2.54 km SE of Cherokee, Oklahoma · 4123 days ago · 5 km deep · 96 km away
  57. 2.24 km S of Harper, Kansas · 4123 days ago · 4 km deep · 84 km away
  58. 2.47 km S of Anthony, Kansas · 4123 days ago · 6 km deep · 90 km away
  59. 1.97 km S of Anthony, Kansas · 4123 days ago · 6 km deep · 90 km away
  60. 1.67 km S of Anthony, Kansas · 4123 days ago · 6 km deep · 89 km away

The first 60 of 168.

Before

  1. 1.97 km SW of Danville, Kansas · 4140 days ago · 3 km deep · 91 km away
  2. 1.99 km NNE of Manchester, Oklahoma · 4140 days ago · 2 km deep · 94 km away
  3. 3.38 km NNW of Sun City, Kansas · 4140 days ago · 5 km deep · 2 km away · felt by 3
  4. 1.84 km SE of Manchester, Oklahoma · 4140 days ago · 7 km deep · 99 km away
  5. 2.24 km S of Harper, Kansas · 4141 days ago · 3 km deep · 84 km away
  6. 2.33 km N of Anthony, Kansas · 4141 days ago · 6 km deep · 86 km away · felt by 2
  7. 2.24 km S of Harper, Kansas · 4141 days ago · 4 km deep · 84 km away
  8. 1.64 km S of Harper, Kansas · 4141 days ago · 4 km deep · 84 km away
  9. 2.63 km WNW of Lambert, Oklahoma · 4142 days ago · 7 km deep · 93 km away
  10. 2.65 km SW of Lambert, Oklahoma · 4142 days ago · 7 km deep · 97 km away
  11. 2.14 km S of Harper, Kansas · 4142 days ago · 1 km deep · 85 km away
  12. 2.22 km W of Harper, Kansas · 4142 days ago · 8 km deep · 81 km away · felt by 1
  13. 2.03 km SE of Harper, Kansas · 4143 days ago · 4 km deep · 86 km away
  14. 2.28 km SE of Harper, Kansas · 4143 days ago · 5 km deep · 90 km away
  15. 3.010 km SW of Dacoma, Oklahoma · 4144 days ago · 5 km deep · 96 km away
  16. 2.611 km SW of Dacoma, Oklahoma · 4144 days ago · 5 km deep · 97 km away
  17. 2.910 km SW of Dacoma, Oklahoma · 4144 days ago · 3 km deep · 95 km away
  18. 3.412 km WSW of Dacoma, Oklahoma · 4145 days ago · 14 km deep · 94 km away · felt by 2
  19. 2.38 km SE of Harper, Kansas · 4146 days ago · 3 km deep · 90 km away
  20. 2.24 km N of Anthony, Kansas · 4146 days ago · 5 km deep · 85 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us10002bup. Read Tue, Sep 22, 2026, 2:49 PM UTC.