Oklahoma earthquakes

M1.8 earthquake 7 km WSW of Shamrock, Oklahoma

A magnitude 1.8 earthquake struck 7 km WSW of Shamrock, Oklahoma on Sat, Nov 27, 2021, 10:55 AM CST (16:55 UTC), 7 km (5 mi) below the surface.

A larger quake followed: M2.7 6 km WNW of Lucien, 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
1.8 (ML, local (Richter)), micro
Magnitude from
Oklahoma Geological Survey
Local time
UTC
2021-11-27 16:55:32 UTC
Depth
7.4 km (4.6 mi), shallow
Epicenter
35.890° N, 96.666° 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.

How well it is located

Reviewed by a seismologist.

Magnitude uncertainty
±0.23
Station coverage gap
93°
Stations used
48

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 20 in the 60 days after this one and 27 in the 30 days before it.

After

  1. 2.09 km NNW of Perry, Oklahoma · 1772 days ago · 7 km deep · 81 km away
  2. 1.810 km NNW of Perry, Oklahoma · 1772 days ago · 6 km deep · 81 km away
  3. 1.99 km NNW of Perry, Oklahoma · 1769 days ago · 6 km deep · 81 km away
  4. 2.76 km WNW of Lucien, Oklahoma · 1763 days ago · 7 km deep · 89 km away · felt by 4
  5. 1.86 km W of Johnson, Oklahoma · 1756 days ago · 6 km deep · 59 km away
  6. 1.911 km NW of Perry, Oklahoma · 1754 days ago · 7 km deep · 82 km away
  7. 2.010 km WSW of Shamrock, Oklahoma · 1754 days ago · 8 km deep · 3 km away
  8. 2.14 km NE of Coyle, Oklahoma · 1754 days ago · 7 km deep · 49 km away
  9. 2.18 km NW of Prague, Oklahoma · 1752 days ago · 8 km deep · 40 km away
  10. 1.98 km NW of Prague, Oklahoma · 1752 days ago · 8 km deep · 41 km away
  11. 1.72 km WNW of Crescent, Oklahoma · 1752 days ago · 8 km deep · 86 km away
  12. 1.88 km NW of Prague, Oklahoma · 1752 days ago · 7 km deep · 41 km away
  13. 2.34 km NE of Coyle, Oklahoma · 1751 days ago · 7 km deep · 49 km away · felt by 2
  14. 2.010 km WSW of Shamrock, Oklahoma · 1740 days ago · 7 km deep · 3 km away
  15. 1.67 km E of Marshall, Oklahoma · 1733 days ago · 25 km deep · 84 km away
  16. 1.67 km NW of Wetumka, Oklahoma · 1730 days ago · 2 km deep · 75 km away
  17. 1.64 km W of Lucien, Oklahoma · 1724 days ago · 4 km deep · 86 km away · felt by 1
  18. 1.93 km NNW of Covington, Oklahoma · 1724 days ago · 7 km deep · 98 km away
  19. 2.23 km NNW of Covington, Oklahoma · 1724 days ago · 6 km deep · 98 km away · felt by 3
  20. 2.25 km N of Stroud, Oklahoma · 1721 days ago · 8 km deep · 10 km away

Before

  1. 1.68 km NW of Prague, Oklahoma · 1773 days ago · 8 km deep · 40 km away
  2. 1.95 km ESE of Meeker, Oklahoma · 1773 days ago · 7 km deep · 49 km away
  3. 1.89 km NW of Perry, Oklahoma · 1773 days ago · 6 km deep · 81 km away
  4. 1.95 km W of Lucien, Oklahoma · 1773 days ago · 7 km deep · 88 km away
  5. 1.79 km NNW of Perry, Oklahoma · 1774 days ago · 6 km deep · 81 km away
  6. 2.29 km NNW of Perry, Oklahoma · 1775 days ago · 6 km deep · 81 km away
  7. 2.05 km N of Stroud, Oklahoma · 1780 days ago · 8 km deep · 10 km away
  8. 1.610 km NNW of Perry, Oklahoma · 1783 days ago · 7 km deep · 81 km away
  9. 1.85 km WNW of Lucien, Oklahoma · 1784 days ago · 3 km deep · 88 km away
  10. 1.99 km NNW of Perry, Oklahoma · 1786 days ago · 7 km deep · 81 km away
  11. 2.01 km NNW of Cushing, Oklahoma · 1787 days ago · 7 km deep · 16 km away
  12. 2.210 km WSW of Shamrock, Oklahoma · 1787 days ago · 8 km deep · 3 km away
  13. 1.610 km NNW of Perry, Oklahoma · 1787 days ago · 5 km deep · 81 km away
  14. 1.98 km SSW of Warwick, Oklahoma · 1788 days ago · 7 km deep · 46 km away
  15. 1.78 km SSW of Warwick, Oklahoma · 1788 days ago · 7 km deep · 46 km away
  16. 2.88 km SSW of Warwick, Oklahoma · 1788 days ago · 7 km deep · 46 km away · felt by 14
  17. 1.89 km NNW of Perry, Oklahoma · 1788 days ago · 6 km deep · 81 km away
  18. 1.62 km WNW of Cushing, Oklahoma · 1792 days ago · 7 km deep · 16 km away · felt by 1
  19. 1.63 km WNW of Cushing, Oklahoma · 1792 days ago · 7 km deep · 17 km away
  20. 2.08 km SSW of Warwick, Oklahoma · 1794 days ago · 6 km deep · 46 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ok2021xgfn. Read Mon, Oct 5, 2026, 3:37 AM UTC.