Oklahoma earthquakes

M3.4 earthquake 8 km NE of Alex, Oklahoma

A magnitude 3.4 earthquake struck 8 km NE of Alex, Oklahoma on Thu, Mar 5, 2020, 7:42 PM CST (01:42 UTC), 10 km (6 mi) below the surface.

Alex 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
3.4 (ml), minor
Local time
UTC
2020-03-06 01:42:14 UTC
Depth
10.2 km (6.3 mi), shallow
Epicenter
34.967° N, 97.708° W
Region
Oklahoma
Felt reports
54
Strongest shaking
V, moderate shaking
Tsunami flag
No
Status
Reviewed by a seismologist

Shaking

The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.

Strongest estimated
V, moderate shaking
Peak ground acceleration
4.4% of gravity
Peak ground velocity
-0.1 cm/s
Map
Automatic
USGS ShakeMap: estimated shaking intensity around the epicenter
Estimated shaking intensity. Map: USGS ShakeMap.

Did you feel it?

54 people reported to the USGS what they felt; the strongest reported shaking was V, moderate shaking.

Did You Feel It? map: shaking reported by the public
Shaking reported by the public, by area. Map: USGS Did You Feel It?

Fault motion and ground failure

How the rock slipped, from the moment tensor, and the USGS estimate of landslides and liquefaction.

Faulting
Strike-slip
Moment magnitude
3.6 Mwr
Nodal plane 1
Strike 45°, dip 68°, rake -178°
Nodal plane 2
Strike 314°, dip 88°, rake -22°

How well it is located

Reviewed by a seismologist.

Magnitude uncertainty
±0.23
Station coverage gap
40°
Stations used
54

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 24 in the 60 days after this one and 49 in the 30 days before it.

After

  1. 1.77 km WSW of Blanchard, Oklahoma · 2388 days ago · 8 km deep · 15 km away
  2. 1.510 km W of Dibble, Oklahoma · 2386 days ago · 7 km deep · 7 km away
  3. 1.87 km E of Meeker, Oklahoma · 2385 days ago · 7 km deep · 100 km away
  4. 1.78 km WSW of Blanchard, Oklahoma · 2382 days ago · 7 km deep · 16 km away
  5. 1.610 km W of Blanchard, Oklahoma · 2381 days ago · 7 km deep · 18 km away
  6. 1.97 km E of Medicine Park, Oklahoma · 2380 days ago · 7 km deep · 70 km away
  7. 1.66 km WSW of Blanchard, Oklahoma · 2380 days ago · 7 km deep · 16 km away
  8. 3.010 km WSW of Blanchard, Oklahoma · 2379 days ago · 8 km deep · 16 km away · felt by 22
  9. 1.94 km SSE of Minco, Oklahoma · 2371 days ago · 8 km deep · 40 km away
  10. 1.63 km SSE of Minco, Oklahoma · 2371 days ago · 6 km deep · 40 km away
  11. 1.8Oklahoma · 2369 days ago · 9 km deep · 1 km away
  12. 1.75 km ENE of Jones, Oklahoma · 2366 days ago · 7 km deep · 81 km away
  13. 2.67 km NNE of Geronimo, Oklahoma · 2365 days ago · 34 km deep · 75 km away · felt by 1
  14. 1.84 km SE of Minco, Oklahoma · 2358 days ago · 4 km deep · 40 km away
  15. 1.811 km NE of Harrah, Oklahoma · 2349 days ago · 6 km deep · 88 km away
  16. 1.511 km NE of Harrah, Oklahoma · 2346 days ago · 7 km deep · 88 km away
  17. 1.511 km NE of Harrah, Oklahoma · 2346 days ago · 7 km deep · 88 km away
  18. 1.86 km WSW of Tuttle, Oklahoma · 2343 days ago · 7 km deep · 38 km away
  19. 2.011 km NE of Harrah, Oklahoma · 2340 days ago · 7 km deep · 88 km away
  20. 2.511 km NE of Harrah, Oklahoma · 2340 days ago · 6 km deep · 88 km away · felt by 4
  21. 3.310 km SE of Amber, Oklahoma · 2335 days ago · 10 km deep · 16 km away · felt by 44
  22. 2.68 km N of Bradley, Oklahoma · 2335 days ago · 12 km deep · 2 km away
  23. 2.08 km N of Bradley, Oklahoma · 2334 days ago · 7 km deep · 2 km away
  24. 1.69 km SW of Dibble, Oklahoma · 2334 days ago · 7 km deep · 2 km away

Before

  1. 1.88 km WSW of Blanchard, Oklahoma · 2392 days ago · 7 km deep · 16 km away
  2. 1.77 km SW of Washington, Oklahoma · 2397 days ago · 3 km deep · 16 km away
  3. 2.56 km SE of Minco, Oklahoma · 2399 days ago · 7 km deep · 38 km away · felt by 7
  4. 1.66 km SW of Byars, Oklahoma · 2399 days ago · 5 km deep · 57 km away
  5. 2.09 km NNW of Alex, Oklahoma · 2400 days ago · 7 km deep · 10 km away · felt by 1
  6. 2.06 km ESE of Union City, Oklahoma · 2401 days ago · 7 km deep · 46 km away
  7. 2.16 km E of Union City, Oklahoma · 2401 days ago · 5 km deep · 49 km away
  8. 1.76 km ESE of Union City, Oklahoma · 2401 days ago · 5 km deep · 48 km away
  9. 1.65 km ESE of Union City, Oklahoma · 2401 days ago · 8 km deep · 47 km away
  10. 1.76 km ESE of Union City, Oklahoma · 2401 days ago · 5 km deep · 47 km away
  11. 1.8Oklahoma · 2402 days ago · 6 km deep · 47 km away
  12. 2.27 km ESE of Union City, Oklahoma · 2402 days ago · 5 km deep · 48 km away
  13. 1.75 km ESE of Union City, Oklahoma · 2403 days ago · 6 km deep · 48 km away
  14. 1.811 km SW of Blanchard, Oklahoma · 2404 days ago · 8 km deep · 12 km away
  15. 2.67 km SE of Minco, Oklahoma · 2406 days ago · 8 km deep · 37 km away · felt by 3
  16. 1.68 km NE of Alex, Oklahoma · 2406 days ago · 7 km deep · 1 km away
  17. 2.17 km NE of Alex, Oklahoma · 2407 days ago · 8 km deep · 1 km away
  18. 2.08 km NE of Alex, Oklahoma · 2407 days ago · 7 km deep · 0 km away
  19. 2.07 km NE of Alex, Oklahoma · 2407 days ago · 10 km deep · 1 km away
  20. 2.56 km WSW of Tuttle, Oklahoma · 2407 days ago · 7 km deep · 38 km away · felt by 3

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ok2020eoxb (also filed as us60008art). Read Wed, Sep 23, 2026, 12:52 AM UTC.