M1.9 earthquake 4 km NE of Greenbrier, Arkansas

Magnitude

1.9 (Md, duration), micro

Magnitude from

NM

Local time

Fri, May 20, 2011, 11:42 AM CDT

UTC

2011-05-20 16:42:27 UTC

Depth

6.4 km (4.0 mi), shallow

Epicenter

35.258° N, 92.353° W

Region

Arkansas

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 1.5 km horizontally, 0.9 km in depth

Magnitude uncertainty

±0.16

Depth from

From location

Station coverage gap

169°

Stations used

6

• Greenbrier, ArkansasPopulation 5,296. Forecast4 kmNE
• Conway, ArkansasPopulation 64,980. Forecast20 kmNNE
• Little Rock, ArkansasPopulation 202,591. Forecast57 kmN
• Dallas, TexasPopulation 1,326,087. Forecast494 kmNE

After

1. 2.02 km SSW of Rose Bud, ArkansasSat, May 21, 4:35 AM CDT · 5615 days ago · 3 km deep · 24 km away
2. 2.04 km S of Guy, ArkansasThu, May 26, 1:20 AM CDT · 5610 days ago · 5 km deep · 4 km away
3. 1.80 km ESE of Greenbrier, ArkansasMon, May 30, 5:48 PM CDT · 5606 days ago · 5 km deep · 4 km away
4. 2.11 km E of Greenbrier, ArkansasTue, May 31, 3:29 AM CDT · 5605 days ago · 4 km deep · 3 km away
5. 2.01 km ESE of Greenbrier, ArkansasTue, May 31, 3:33 AM CDT · 5605 days ago · 5 km deep · 4 km away
6. 2.12 km SSE of Guy, ArkansasSat, Jun 4, 1:51 AM CDT · 5601 days ago · 4 km deep · 6 km away
7. 2.25 km W of Quitman, ArkansasThu, Jun 9, 4:01 AM CDT · 5596 days ago · 5 km deep · 15 km away
8. 2.21 km ESE of Greenbrier, ArkansasSun, Jun 12, 9:54 AM CDT · 5593 days ago · 4 km deep · 4 km away
9. 1.71 km SE of Greenbrier, ArkansasSun, Jun 12, 11:16 PM CDT · 5593 days ago · 4 km deep · 4 km away
10. 2.42 km W of Rose Bud, ArkansasSun, Jun 19, 4:22 PM CDT · 5586 days ago · 8 km deep · 23 km away
11. 2.11 km SE of Greenbrier, ArkansasSun, Jun 19, 7:38 PM CDT · 5586 days ago · 6 km deep · 5 km away
12. 2.51 km E of Greenbrier, ArkansasTue, Jun 21, 7:07 AM CDT · 5584 days ago · 4 km deep · 3 km away · felt by 6
13. 2.11 km SSE of Greenbrier, ArkansasWed, Jun 22, 5:34 AM CDT · 5583 days ago · 7 km deep · 5 km away
14. 2.02 km E of Greenbrier, ArkansasSun, Jun 26, 2:13 AM CDT · 5579 days ago · 5 km deep · 3 km away
15. 1.99 km ESE of Guy, ArkansasSat, Jul 9, 12:23 PM CDT · 5566 days ago · 3 km deep · 10 km away
16. 2.14 km WSW of Quitman, ArkansasMon, Jul 11, 5:41 AM CDT · 5564 days ago · 5 km deep · 14 km away
17. 2.1ArkansasTue, Jul 12, 2:39 PM CDT · 5563 days ago · 8 km deep · 15 km away
18. 2.34 km SSW of Center Ridge, ArkansasWed, Jul 13, 2:30 AM CDT · 5562 days ago · 0 km deep · 22 km away
19. 2.44 km SSW of Center Ridge, ArkansasWed, Jul 13, 3:21 AM CDT · 5562 days ago · 0 km deep · 23 km away
20. 2.2ArkansasWed, Jul 13, 10:00 AM CDT · 5562 days ago · 0 km deep · 24 km away
21. 2.29 km NNW of Quitman, ArkansasWed, Jul 13, 3:46 PM CDT · 5562 days ago · 5 km deep · 24 km away
22. 2.49 km NNW of Quitman, ArkansasThu, Jul 14, 9:49 PM CDT · 5561 days ago · 3 km deep · 24 km away
23. 2.8ArkansasThu, Jul 14, 11:08 PM CDT · 5561 days ago · 4 km deep · 4 km away · felt by 24
24. 2.31 km SE of Greenbrier, ArkansasFri, Jul 15, 2:49 AM CDT · 5560 days ago · 6 km deep · 4 km away
25. 2.28 km NNW of Quitman, ArkansasFri, Jul 15, 4:34 AM CDT · 5560 days ago · 4 km deep · 24 km away
26. 2.210 km NNW of Quitman, ArkansasSat, Jul 16, 5:59 AM CDT · 5559 days ago · 5 km deep · 25 km away
27. 2.0ArkansasSat, Jul 16, 1:34 PM CDT · 5559 days ago · 5 km deep · 4 km away
28. 2.07 km NW of Quitman, ArkansasSun, Jul 17, 3:04 PM CDT · 5558 days ago · 2 km deep · 22 km away
29. 2.212 km WSW of Center Ridge, ArkansasMon, Jul 18, 2:07 PM CDT · 5557 days ago · 10 km deep · 33 km away
30. 2.25 km NNW of Holland, ArkansasMon, Jul 18, 7:53 PM CDT · 5557 days ago · 5 km deep · 7 km away
31. 2.413 km WSW of Center Ridge, ArkansasTue, Jul 19, 1:10 AM CDT · 5556 days ago · 8 km deep · 34 km away

Before

1. 2.42 km SE of Guy, ArkansasThu, May 19, 12:12 PM CDT · 5617 days ago · 5 km deep · 7 km away
2. 2.06 km NE of Greenbrier, ArkansasWed, May 18, 6:35 PM CDT · 5618 days ago · 3 km deep · 2 km away
3. 2.14 km WNW of Greenbrier, ArkansasTue, May 17, 11:26 PM CDT · 5619 days ago · 5 km deep · 7 km away
4. 2.42 km ENE of Greenbrier, ArkansasTue, May 17, 2:57 AM CDT · 5619 days ago · 3 km deep · 1 km away
5. 2.51 km NNW of Enola, ArkansasSat, May 14, 9:36 AM CDT · 5622 days ago · 7 km deep · 15 km away
6. 2.02 km ENE of Greenbrier, ArkansasFri, May 13, 10:41 PM CDT · 5623 days ago · 7 km deep · 2 km away
7. 1.62 km ENE of Greenbrier, ArkansasFri, May 13, 8:40 PM CDT · 5623 days ago · 7 km deep · 2 km away
8. 2.12 km ENE of Greenbrier, ArkansasFri, May 13, 7:56 PM CDT · 5623 days ago · 6 km deep · 2 km away
9. 2.84 km NE of Greenbrier, ArkansasFri, May 13, 12:14 PM CDT · 5623 days ago · 4 km deep · 1 km away · felt by 7
10. 2.12 km ENE of Greenbrier, ArkansasThu, May 12, 5:15 PM CDT · 5624 days ago · 3 km deep · 2 km away
11. 2.23 km ENE of Greenbrier, ArkansasThu, May 12, 4:09 PM CDT · 5624 days ago · 4 km deep · 2 km away
12. 2.11 km E of Greenbrier, ArkansasWed, May 11, 4:55 AM CDT · 5625 days ago · 4 km deep · 3 km away
13. 1.72 km SE of Greenbrier, ArkansasMon, May 9, 9:10 AM CDT · 5627 days ago · 3 km deep · 5 km away
14. 2.15 km NE of Greenbrier, ArkansasSun, May 8, 11:03 PM CDT · 5628 days ago · 4 km deep · 1 km away
15. 2.05 km NE of Greenbrier, ArkansasSun, May 8, 10:37 PM CDT · 5628 days ago · 2 km deep · 1 km away
16. 1.93 km NE of Greenbrier, ArkansasSun, May 8, 10:06 PM CDT · 5628 days ago · 6 km deep · 0 km away
17. 1.61 km E of Greenbrier, ArkansasSat, May 7, 12:44 PM CDT · 5629 days ago · 7 km deep · 3 km away
18. 3.11 km NNE of Greenbrier, ArkansasSat, May 7, 8:08 AM CDT · 5629 days ago · 6 km deep · 3 km away · felt by 33
19. 2.38 km WNW of Southside, ArkansasThu, May 5, 3:50 AM CDT · 5631 days ago · 10 km deep · 77 km away
20. 2.06 km NE of Greenbrier, ArkansasThu, May 5, 2:11 AM CDT · 5631 days ago · 4 km deep · 2 km away

From the USGS Earthquake Hazards Program and its partner networks, event nm608912. Read Sun, Oct 4, 2026, 4:29 PM UTC.