Oklahoma earthquakes

M2.8 earthquake 23 km NE of Fort Supply, Oklahoma

A magnitude 2.8 earthquake struck 23 km NE of Fort Supply, Oklahoma on Mon, Apr 9, 2018, 4:26 PM CDT (21:26 UTC), 4 km (2 mi) below the surface.

A larger quake followed: M2.9 14 km SSE of Freedom, 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
2.8 (ml), micro
Local time
UTC
2018-04-09 21:26:40 UTC
Depth
3.8 km (2.4 mi), shallow
Epicenter
36.722° N, 99.377° 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 2.8 km horizontally, 6.0 km in depth
Station coverage gap
103°
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: 18 in the 60 days after this one and 19 in the 30 days before it.

After

  1. 2.69 km SW of Waynoka, Oklahoma · 3084 days ago · 4 km deep · 43 km away
  2. 2.914 km SSE of Freedom, Oklahoma · 3083 days ago · 6 km deep · 32 km away · felt by 2
  3. 2.82 km NNW of Lambert, Oklahoma · 3080 days ago · 7 km deep · 84 km away
  4. 2.81 km NNW of Lambert, Oklahoma · 3080 days ago · 7 km deep · 85 km away
  5. 2.814 km SSE of Freedom, Oklahoma · 3079 days ago · 5 km deep · 33 km away
  6. 3.616 km SSE of Waynoka, Oklahoma · 3078 days ago · 6 km deep · 61 km away · felt by 7
  7. 2.513 km WSW of Carmen, Oklahoma · 3077 days ago · 5 km deep · 72 km away
  8. 2.717 km SSE of Waynoka, Oklahoma · 3070 days ago · 5 km deep · 62 km away
  9. 3.215 km SSE of Waynoka, Oklahoma · 3067 days ago · 5 km deep · 60 km away · felt by 2
  10. 2.615 km SSE of Waynoka, Oklahoma · 3067 days ago · 6 km deep · 60 km away
  11. 2.814 km WNW of Longdale, Oklahoma · 3066 days ago · 5 km deep · 85 km away · felt by 2
  12. 2.415 km SSE of Waynoka, Oklahoma · 3066 days ago · 5 km deep · 59 km away
  13. 2.84 km NE of Cherokee, Oklahoma · 3065 days ago · 5 km deep · 94 km away
  14. 2.414 km SSE of Freedom, Oklahoma · 3064 days ago · 5 km deep · 32 km away
  15. 2.78 km SW of Waynoka, Oklahoma · 3058 days ago · 6 km deep · 42 km away
  16. 3.09 km SW of Waynoka, Oklahoma · 3058 days ago · 6 km deep · 42 km away
  17. 2.513 km NW of Longdale, Oklahoma · 3056 days ago · 7 km deep · 86 km away
  18. 2.716 km SSW of Freedom, Oklahoma · 3048 days ago · 3 km deep · 20 km away

Before

  1. 2.16 km WSW of Chester, Oklahoma · 3089 days ago · 7 km deep · 69 km away · felt by 1
  2. 2.51 km SW of Cherokee, Oklahoma · 3090 days ago · 9 km deep · 90 km away
  3. 2.815 km SSE of Waynoka, Oklahoma · 3094 days ago · 6 km deep · 59 km away · felt by 3
  4. 2.615 km SSW of Freedom, Oklahoma · 3096 days ago · 3 km deep · 20 km away
  5. 2.514 km WNW of Waynoka, Oklahoma · 3102 days ago · 6 km deep · 33 km away · felt by 1
  6. 2.613 km WNW of Taloga, Oklahoma · 3102 days ago · 5 km deep · 74 km away
  7. 2.412 km WNW of Taloga, Oklahoma · 3102 days ago · 7 km deep · 74 km away · felt by 1
  8. 2.614 km WNW of Waynoka, Oklahoma · 3104 days ago · 6 km deep · 33 km away
  9. 2.914 km SSE of Freedom, Oklahoma · 3105 days ago · 6 km deep · 32 km away · felt by 1
  10. 2.516 km SE of Waynoka, Oklahoma · 3106 days ago · 8 km deep · 63 km away
  11. 2.55 km SE of Fairview, Oklahoma · 3106 days ago · 6 km deep · 100 km away · felt by 1
  12. 2.79 km NE of Quinlan, Oklahoma · 3107 days ago · 6 km deep · 41 km away · felt by 1
  13. 3.417 km SE of Waynoka, Oklahoma · 3108 days ago · 8 km deep · 62 km away · felt by 5
  14. 2.16 km WNW of Buffalo, Oklahoma · 3109 days ago · 5 km deep · 32 km away
  15. 2.38 km W of Buffalo, Oklahoma · 3110 days ago · 6 km deep · 33 km away
  16. 2.822 km NE of Fort Supply, Oklahoma · 3111 days ago · 1 km deep · 1 km away
  17. 2.727 km SSE of Protection, Kansas · 3112 days ago · 4 km deep · 28 km away · felt by 3
  18. 3.022 km NE of Fort Supply, Oklahoma · 3112 days ago · 4 km deep · 1 km away
  19. 2.615 km SSE of Waynoka, Oklahoma · 3115 days ago · 6 km deep · 58 km away · felt by 2

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us2000dx52. Read Tue, Sep 22, 2026, 11:14 AM UTC.