Oklahoma earthquakes

M2.5 earthquake 8 km NW of Knowles, Oklahoma

A magnitude 2.5 earthquake struck 8 km NW of Knowles, Oklahoma on Wed, Dec 11, 2019, 7:35 PM CST (01:35 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M2.8 12 km NNE of Rosston, Oklahoma. This one was a foreshock.

Forgan 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
2.5 (ml), micro
Local time
UTC
2019-12-12 01:35:00 UTC
Depth
6.0 km (3.7 mi), shallow
Epicenter
36.925° N, 100.258° 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 III, weak 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
±0.14
Depth from
Operator assigned
Station coverage gap
291°, poorly surrounded by stations
Stations used
28

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 14 in the 60 days after this one and 2 in the 30 days before it.

After

  1. 1.617 km ENE of Fort Supply, Oklahoma · 2458 days ago · 7 km deep · 82 km away
  2. 2.019 km NE of Buffalo, Oklahoma · 2446 days ago · 5 km deep · 70 km away
  3. 2.410 km NNE of Rosston, Oklahoma · 2436 days ago · 7 km deep · 32 km away
  4. 2.812 km NNE of Rosston, Oklahoma · 2436 days ago · 7 km deep · 34 km away · felt by 2
  5. 2.312 km NNE of Rosston, Oklahoma · 2436 days ago · 5 km deep · 34 km away
  6. 2.413 km N of Rosston, Oklahoma · 2436 days ago · 5 km deep · 31 km away
  7. 2.313 km NNE of Rosston, Oklahoma · 2436 days ago · 9 km deep · 32 km away
  8. 2.511 km NNE of Rosston, Oklahoma · 2436 days ago · 7 km deep · 32 km away
  9. 2.510 km NNE of Rosston, Oklahoma · 2436 days ago · 7 km deep · 32 km away
  10. 2.211 km NNE of Rosston, Oklahoma · 2436 days ago · 8 km deep · 33 km away · felt by 1
  11. 1.912 km N of Rosston, Oklahoma · 2427 days ago · 8 km deep · 31 km away
  12. 2.311 km NNE of Rosston, Oklahoma · 2427 days ago · 7 km deep · 32 km away
  13. 1.712 km N of Rosston, Oklahoma · 2425 days ago · 8 km deep · 31 km away
  14. 2.226 km NE of Buffalo, Oklahoma · 2424 days ago · 7 km deep · 78 km away

Before

  1. 2.025 km ENE of Buffalo, Oklahoma · 2481 days ago · 6 km deep · 77 km away
  2. 2.211 km S of Buffalo, Oklahoma · 2484 days ago · 6 km deep · 59 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ok2019yglr (also filed as us60006qdh). Read Tue, Sep 22, 2026, 9:29 PM UTC.