Oklahoma earthquakes

M1.8 earthquake 8 km SE of Ratliff City, Oklahoma

A magnitude 1.8 earthquake struck 8 km SE of Ratliff City, Oklahoma on Thu, Jul 29, 2021, 4:07 AM CDT (09:07 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M2.1 1 km SSW of Verden, 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), micro
Local time
UTC
2021-07-29 09:07:21 UTC
Depth
5.3 km (3.3 mi), shallow
Epicenter
34.397° N, 97.435° 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
±0.19
Station coverage gap
102°
Stations used
14

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 13 in the 60 days after this one and 11 in the 30 days before it.

After

  1. 2.11 km SSW of Verden, Oklahoma · 1865 days ago · 9 km deep · 96 km away · felt by 1
  2. 1.68 km SW of Dibble, Oklahoma · 1851 days ago · 8 km deep · 68 km away
  3. 1.90 km WSW of Sherwood Shores, Texas · 1848 days ago · 17 km deep · 83 km away
  4. 1.66 km S of Ratliff City, Oklahoma · 1845 days ago · 10 km deep · 6 km away
  5. 2.76 km NNE of Alex, Oklahoma · 1844 days ago · 8 km deep · 71 km away · felt by 4
  6. 1.77 km NE of Alex, Oklahoma · 1842 days ago · 9 km deep · 67 km away · felt by 1
  7. 2.27 km SSE of Erin Springs, Oklahoma · 1831 days ago · 7 km deep · 41 km away · felt by 1
  8. 1.87 km SSE of Erin Springs, Oklahoma · 1830 days ago · 7 km deep · 41 km away
  9. 1.93 km S of Blanchard, Oklahoma · 1829 days ago · 4 km deep · 82 km away · felt by 11
  10. 2.013 km W of Marietta, Oklahoma · 1827 days ago · 15 km deep · 52 km away
  11. 2.415 km NE of Leon, Oklahoma · 1827 days ago · 12 km deep · 50 km away
  12. 1.87 km SSE of Erin Springs, Oklahoma · 1827 days ago · 7 km deep · 41 km away
  13. 1.77 km SSE of Erin Springs, Oklahoma · 1827 days ago · 7 km deep · 41 km away

Before

  1. 1.811 km SE of Ratliff City, Oklahoma · 1882 days ago · 5 km deep · 2 km away
  2. 1.611 km SE of Ratliff City, Oklahoma · 1883 days ago · 5 km deep · 3 km away
  3. 1.614 km NE of Leon, Oklahoma · 1887 days ago · 12 km deep · 51 km away
  4. 1.53 km SSE of Blanchard, Oklahoma · 1890 days ago · 5 km deep · 81 km away
  5. 2.05 km SSE of Hickory, Oklahoma · 1892 days ago · 6 km deep · 57 km away
  6. 1.65 km N of Rosedale, Oklahoma · 1892 days ago · 18 km deep · 67 km away
  7. 1.75 km SW of Blanchard, Oklahoma · 1895 days ago · 7 km deep · 82 km away
  8. 1.65 km ESE of Ratliff City, Oklahoma · 1900 days ago · 4 km deep · 4 km away
  9. 1.92 km N of Ada, Oklahoma · 1905 days ago · 5 km deep · 82 km away
  10. 1.92 km SSW of Blanchard, Oklahoma · 1905 days ago · 7 km deep · 83 km away · felt by 2
  11. 1.89 km E of Chickasha, Oklahoma · 1911 days ago · 8 km deep · 80 km away · felt by 1

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ok2021osof. Read Tue, Sep 22, 2026, 11:32 PM UTC.