Oklahoma earthquakes

M1.6 earthquake 11 km NNW of Medford, Oklahoma

A magnitude 1.6 earthquake struck 11 km NNW of Medford, Oklahoma on Sun, Apr 4, 2021, 9:48 PM CDT (02:48 UTC), 8 km (5 mi) below the surface.

A larger quake followed: M2.6 5 km N of Ames, Oklahoma. This one was a foreshock.

Medford 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
1.6 (ml), micro
Local time
UTC
2021-04-05 02:48:38 UTC
Depth
7.7 km (4.8 mi), shallow
Epicenter
36.896° N, 97.795° 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 I, not felt 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.

Magnitude uncertainty
±0.24
Station coverage gap
69°
Stations used
62

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 46 in the 60 days after this one and 40 in the 30 days before it.

After

  1. 2.65 km N of Ames, Oklahoma · 1989 days ago · 8 km deep · 75 km away
  2. 2.610 km NW of Perry, Oklahoma · 1988 days ago · 7 km deep · 71 km away · felt by 3
  3. 1.910 km ESE of Jefferson, Oklahoma · 1988 days ago · 7 km deep · 24 km away
  4. 1.616 km SE of Waynoka, Oklahoma · 1987 days ago · 9 km deep · 99 km away
  5. 3.05 km SW of Manchester, Oklahoma · 1986 days ago · 9 km deep · 27 km away
  6. 1.86 km NW of Lamont, Oklahoma · 1986 days ago · 8 km deep · 25 km away
  7. 1.56 km SW of Manchester, Oklahoma · 1984 days ago · 5 km deep · 28 km away
  8. 2.010 km ESE of Jefferson, Oklahoma · 1984 days ago · 5 km deep · 24 km away
  9. 1.510 km ESE of Jefferson, Oklahoma · 1984 days ago · 7 km deep · 24 km away
  10. 1.910 km W of Lamont, Oklahoma · 1984 days ago · 6 km deep · 25 km away
  11. 1.910 km W of Lamont, Oklahoma · 1984 days ago · 5 km deep · 25 km away
  12. 1.910 km ESE of Jefferson, Oklahoma · 1984 days ago · 8 km deep · 24 km away
  13. 2.17 km S of Byron, Oklahoma · 1984 days ago · 5 km deep · 44 km away
  14. 1.65 km SW of Manchester, Oklahoma · 1979 days ago · 7 km deep · 26 km away
  15. 1.810 km NW of Perry, Oklahoma · 1978 days ago · 7 km deep · 71 km away
  16. 2.09 km W of Mulhall, Oklahoma · 1978 days ago · 5 km deep · 96 km away
  17. 1.89 km NNW of Perry, Oklahoma · 1976 days ago · 6 km deep · 71 km away
  18. 2.010 km NNW of Perry, Oklahoma · 1976 days ago · 6 km deep · 71 km away
  19. 2.39 km NNW of Perry, Oklahoma · 1976 days ago · 6 km deep · 71 km away
  20. 1.617 km SE of Waynoka, Oklahoma · 1974 days ago · 8 km deep · 94 km away
  21. 1.517 km SE of Waynoka, Oklahoma · 1974 days ago · 9 km deep · 94 km away
  22. 2.310 km NW of Perry, Oklahoma · 1973 days ago · 8 km deep · 71 km away
  23. 2.010 km SW of Hardtner, Kansas · 1971 days ago · 7 km deep · 83 km away
  24. 2.34 km W of Lucien, Oklahoma · 1969 days ago · 8 km deep · 73 km away
  25. 1.64 km W of Lucien, Oklahoma · 1969 days ago · 7 km deep · 73 km away
  26. 2.310 km W of Lamont, Oklahoma · 1966 days ago · 8 km deep · 24 km away
  27. 2.23 km SE of Meno, Oklahoma · 1965 days ago · 7 km deep · 67 km away
  28. 1.95 km W of Lucien, Oklahoma · 1965 days ago · 7 km deep · 73 km away
  29. 2.216 km NW of Pawnee, Oklahoma · 1964 days ago · 8 km deep · 92 km away · felt by 1
  30. 1.72 km SE of Aline, Oklahoma · 1960 days ago · 8 km deep · 71 km away
  31. 1.610 km NNW of Perry, Oklahoma · 1958 days ago · 6 km deep · 71 km away
  32. 2.06 km WSW of Isabella, Oklahoma · 1955 days ago · 6 km deep · 94 km away
  33. 2.14 km ESE of Perry, Oklahoma · 1954 days ago · 7 km deep · 85 km away
  34. 1.817 km SE of Waynoka, Oklahoma · 1953 days ago · 7 km deep · 100 km away
  35. 2.17 km ESE of Ames, Oklahoma · 1949 days ago · 8 km deep · 81 km away
  36. 1.813 km NW of Alva, Oklahoma · 1948 days ago · 7 km deep · 86 km away
  37. 1.99 km NW of Perry, Oklahoma · 1948 days ago · 6 km deep · 71 km away
  38. 1.95 km ESE of Jefferson, Oklahoma · 1947 days ago · 8 km deep · 22 km away
  39. 1.56 km N of Ames, Oklahoma · 1947 days ago · 7 km deep · 75 km away
  40. 1.67 km NNE of Loyal, Oklahoma · 1946 days ago · 5 km deep · 100 km away
  41. 1.84 km W of Marshall, Oklahoma · 1941 days ago · 6 km deep · 84 km away
  42. 1.66 km W of Carmen, Oklahoma · 1941 days ago · 6 km deep · 75 km away
  43. 1.54 km SE of Meno, Oklahoma · 1940 days ago · 6 km deep · 67 km away
  44. 2.43 km WNW of Douglas, Oklahoma · 1940 days ago · 8 km deep · 70 km away · felt by 1
  45. 1.610 km NNW of Perry, Oklahoma · 1940 days ago · 7 km deep · 71 km away
  46. 1.53 km N of Lambert, Oklahoma · 1938 days ago · 5 km deep · 60 km away

Before

  1. 1.74 km S of Avard, Oklahoma · 1997 days ago · 6 km deep · 93 km away
  2. 1.83 km SE of Marshall, Oklahoma · 1999 days ago · 6 km deep · 87 km away
  3. 2.23 km SE of McConnell AFB, Kansas · 1999 days ago · 5 km deep · 94 km away · felt by 18
  4. 2.15 km N of Ames, Oklahoma · 2004 days ago · 8 km deep · 75 km away
  5. 2.07 km N of Ames, Oklahoma · 2004 days ago · 7 km deep · 73 km away
  6. 1.96 km N of Nardin, Oklahoma · 2004 days ago · 4 km deep · 31 km away
  7. 1.710 km ESE of Jefferson, Oklahoma · 2005 days ago · 7 km deep · 24 km away
  8. 2.4Oklahoma · 2005 days ago · 5 km deep · 25 km away · felt by 1
  9. 1.54 km N of Breckinridge, Oklahoma · 2010 days ago · 7 km deep · 47 km away
  10. 3.311 km W of Hennessey, Oklahoma · 2010 days ago · 6 km deep · 89 km away · felt by 7
  11. 1.75 km NW of Bison, Oklahoma · 2010 days ago · 5 km deep · 75 km away
  12. 2.313 km NW of Pawnee, Oklahoma · 2011 days ago · 6 km deep · 95 km away · felt by 1
  13. 1.95 km NNE of Ames, Oklahoma · 2011 days ago · 8 km deep · 75 km away
  14. 2.49 km WSW of Isabella, Oklahoma · 2012 days ago · 7 km deep · 97 km away
  15. 1.68 km NW of Perry, Oklahoma · 2012 days ago · 8 km deep · 73 km away
  16. 1.74 km N of Ames, Oklahoma · 2012 days ago · 8 km deep · 76 km away
  17. 1.811 km S of Ames, Oklahoma · 2012 days ago · 5 km deep · 91 km away
  18. 1.66 km SW of Manchester, Oklahoma · 2013 days ago · 5 km deep · 28 km away
  19. 2.15 km N of Ames, Oklahoma · 2013 days ago · 8 km deep · 75 km away
  20. 2.56 km WSW of Helena, Oklahoma · 2015 days ago · 7 km deep · 64 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ok2021gpyt. Read Tue, Sep 22, 2026, 11:13 AM UTC.