M2.8 earthquake 7 km SW of Helena, Oklahoma

Magnitude

2.8 (ml), micro

Local time

Fri, Dec 11, 2015, 1:56 AM CST

UTC

2015-12-11 07:56:16 UTC

Depth

6.5 km (4.1 mi), shallow

Epicenter

36.504° N, 98.341° W

Region

Oklahoma

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 2.0 km horizontally, 6.6 km in depth

Station coverage gap

94°

Stations used

0

• Helena, OklahomaPopulation 1,426. Forecast8 kmSW
• Enid, OklahomaPopulation 51,776. Forecast43 kmWNW
• Oklahoma City, OklahomaPopulation 681,054. Forecast137 kmNNW
• Fort Worth, TexasPopulation 1,008,106. Forecast430 kmNNW

After

1. 2.89 km NNW of Lamont, OklahomaFri, Dec 11, 3:15 AM CST · 3944 days ago · 6 km deep · 71 km away
2. 2.64 km SSE of Covington, OklahomaFri, Dec 11, 7:36 PM CST · 3943 days ago · 5 km deep · 74 km away · felt by 2
3. 2.83 km WNW of Douglas, OklahomaFri, Dec 11, 8:28 PM CST · 3943 days ago · 5 km deep · 63 km away · felt by 1
4. 1.82 km E of Anthony, KansasSat, Dec 12, 2:42 AM CST · 3943 days ago · 6 km deep · 78 km away
5. 2.02 km E of Anthony, KansasSat, Dec 12, 5:24 AM CST · 3943 days ago · 6 km deep · 78 km away
6. 3.10 km NNW of Lucien, OklahomaSat, Dec 12, 6:39 AM CST · 3943 days ago · 8 km deep · 83 km away
7. 2.22 km E of Anthony, KansasSat, Dec 12, 11:24 AM CST · 3943 days ago · 7 km deep · 78 km away · felt by 1
8. 1.64 km ESE of Anthony, KansasSat, Dec 12, 5:33 PM CST · 3943 days ago · 5 km deep · 77 km away
9. 2.08 km N of Wakita, OklahomaSat, Dec 12, 5:41 PM CST · 3943 days ago · 3 km deep · 63 km away
10. 2.06 km SW of Bluff City, KansasSat, Dec 12, 10:13 PM CST · 3942 days ago · 6 km deep · 69 km away
11. 3.07 km WSW of Wakita, OklahomaSun, Dec 13, 9:24 AM CST · 3942 days ago · 6 km deep · 50 km away
12. 1.69 km SSE of Anthony, KansasSun, Dec 13, 12:12 PM CST · 3942 days ago · 6 km deep · 70 km away
13. 3.05 km W of Lucien, OklahomaSun, Dec 13, 3:00 PM CST · 3942 days ago · 8 km deep · 78 km away
14. 1.68 km ENE of Caldwell, KansasMon, Dec 14, 12:11 AM CST · 3941 days ago · 5 km deep · 96 km away
15. 3.25 km W of Lucien, OklahomaMon, Dec 14, 12:54 AM CST · 3941 days ago · 7 km deep · 78 km away · felt by 7
16. 2.07 km ESE of Bluff City, KansasMon, Dec 14, 2:24 AM CST · 3941 days ago · 4 km deep · 77 km away
17. 2.53 km S of Renfrow, OklahomaMon, Dec 14, 6:19 AM CST · 3941 days ago · 5 km deep · 75 km away
18. 1.71 km E of Anthony, KansasMon, Dec 14, 7:00 AM CST · 3941 days ago · 6 km deep · 78 km away
19. 2.7OklahomaMon, Dec 14, 12:15 PM CST · 3941 days ago · 5 km deep · 77 km away · felt by 2
20. 2.67 km NE of Hillsdale, OklahomaMon, Dec 14, 1:54 PM CST · 3941 days ago · 6 km deep · 38 km away
21. 2.76 km NE of Billings, OklahomaMon, Dec 14, 4:50 PM CST · 3941 days ago · 6 km deep · 85 km away
22. 3.12 km ESE of Nescatunga, OklahomaMon, Dec 14, 7:07 PM CST · 3940 days ago · 6 km deep · 33 km away · felt by 1
23. 3.29 km NE of Marshall, OklahomaTue, Dec 15, 3:57 AM CST · 3940 days ago · 6 km deep · 78 km away · felt by 2
24. 3.38 km E of Nescatunga, OklahomaTue, Dec 15, 10:49 AM CST · 3940 days ago · 6 km deep · 39 km away
25. 3.212 km WSW of Carmen, OklahomaTue, Dec 15, 2:42 PM CST · 3940 days ago · 5 km deep · 23 km away · felt by 1
26. 3.29 km NE of Marshall, OklahomaTue, Dec 15, 4:56 PM CST · 3940 days ago · 6 km deep · 77 km away · felt by 2
27. 2.89 km WSW of Renfrow, OklahomaWed, Dec 16, 4:21 AM CST · 3939 days ago · 3 km deep · 68 km away
28. 2.89 km NNE of Quinlan, OklahomaWed, Dec 16, 7:00 AM CST · 3939 days ago · 1 km deep · 58 km away
29. 2.53 km NNW of Deer Creek, OklahomaWed, Dec 16, 7:11 PM CST · 3938 days ago · 5 km deep · 80 km away
30. 1.97 km ESE of Manchester, OklahomaThu, Dec 17, 2:07 AM CST · 3938 days ago · 3 km deep · 60 km away
31. 3.49 km NE of Marshall, OklahomaThu, Dec 17, 9:56 AM CST · 3938 days ago · 6 km deep · 78 km away · felt by 1
32. 2.89 km NNE of Nash, OklahomaThu, Dec 17, 10:01 AM CST · 3938 days ago · 7 km deep · 40 km away
33. 2.916 km SE of Waynoka, OklahomaThu, Dec 17, 11:11 AM CST · 3938 days ago · 5 km deep · 34 km away
34. 1.57 km NNW of Caldwell, KansasThu, Dec 17, 5:20 PM CST · 3938 days ago · 5 km deep · 92 km away
35. 3.46 km WNW of Lucien, OklahomaThu, Dec 17, 8:35 PM CST · 3937 days ago · 7 km deep · 77 km away · felt by 6
36. 3.616 km SE of Waynoka, OklahomaThu, Dec 17, 10:09 PM CST · 3937 days ago · 7 km deep · 35 km away · felt by 9
37. 2.73 km N of Deer Creek, OklahomaFri, Dec 18, 12:59 AM CST · 3937 days ago · 5 km deep · 82 km away
38. 3.33 km SSW of Marshall, OklahomaFri, Dec 18, 2:06 AM CST · 3937 days ago · 5 km deep · 76 km away · felt by 3
39. 1.75 km SE of Freeport, KansasFri, Dec 18, 11:02 AM CST · 3937 days ago · 4 km deep · 88 km away
40. 2.87 km SSE of Byron, OklahomaFri, Dec 18, 4:01 PM CST · 3937 days ago · 4 km deep · 38 km away
41. 3.36 km NE of Nash, OklahomaFri, Dec 18, 7:37 PM CST · 3936 days ago · 7 km deep · 39 km away
42. 2.6OklahomaSat, Dec 19, 12:23 AM CST · 3936 days ago · 9 km deep · 39 km away
43. 2.14 km S of Harper, KansasSat, Dec 19, 1:09 AM CST · 3936 days ago · 1 km deep · 87 km away
44. 1.54 km S of Harper, KansasSat, Dec 19, 1:39 AM CST · 3936 days ago · 2 km deep · 87 km away
45. 2.817 km SE of Waynoka, OklahomaSat, Dec 19, 2:58 AM CST · 3936 days ago · 4 km deep · 37 km away · felt by 1
46. 1.67 km E of Manchester, OklahomaSat, Dec 19, 10:01 AM CST · 3936 days ago · 5 km deep · 65 km away
47. 2.916 km SE of Waynoka, OklahomaSat, Dec 19, 1:14 PM CST · 3936 days ago · 6 km deep · 35 km away
48. 1.89 km WSW of Hunnewell, KansasSat, Dec 19, 6:31 PM CST · 3936 days ago · 5 km deep · 91 km away
49. 1.65 km SSW of Freeport, KansasSat, Dec 19, 10:51 PM CST · 3935 days ago · 7 km deep · 83 km away
50. 2.55 km NNE of Kremlin, OklahomaSun, Dec 20, 1:33 AM CST · 3935 days ago · 7 km deep · 48 km away
51. 3.017 km SE of Waynoka, OklahomaSun, Dec 20, 8:32 PM CST · 3934 days ago · 5 km deep · 35 km away · felt by 1
52. 2.520 km SE of Waynoka, OklahomaSun, Dec 20, 8:46 PM CST · 3934 days ago · 11 km deep · 32 km away
53. 2.616 km SE of Waynoka, OklahomaSun, Dec 20, 8:49 PM CST · 3934 days ago · 7 km deep · 36 km away
54. 2.78 km NNE of Orlando, OklahomaMon, Dec 21, 5:20 AM CST · 3934 days ago · 6 km deep · 93 km away
55. 1.713 km NNW of Caldwell, KansasMon, Dec 21, 7:25 AM CST · 3934 days ago · 4 km deep · 91 km away
56. 2.65 km ESE of Caldwell, KansasMon, Dec 21, 8:30 AM CST · 3934 days ago · 6 km deep · 90 km away · felt by 1
57. 2.86 km ENE of Nash, OklahomaMon, Dec 21, 9:25 AM CST · 3934 days ago · 7 km deep · 38 km away
58. 2.56 km SE of Wakita, OklahomaMon, Dec 21, 11:19 AM CST · 3934 days ago · 6 km deep · 56 km away
59. 1.53 km W of Freeport, KansasMon, Dec 21, 11:55 AM CST · 3934 days ago · 7 km deep · 87 km away
60. 2.98 km E of Nescatunga, OklahomaMon, Dec 21, 5:49 PM CST · 3934 days ago · 7 km deep · 38 km away

The first 60 of at least 199.

Before

1. 2.35 km WSW of Bluff City, KansasThu, Dec 10, 11:05 PM CST · 3944 days ago · 6 km deep · 71 km away
2. 1.85 km WSW of Bluff City, KansasThu, Dec 10, 6:40 PM CST · 3945 days ago · 5 km deep · 71 km away
3. 2.25 km WSW of Bluff City, KansasThu, Dec 10, 6:11 PM CST · 3945 days ago · 6 km deep · 71 km away
4. 3.36 km WSW of Perry, OklahomaThu, Dec 10, 5:21 PM CST · 3945 days ago · 8 km deep · 92 km away · felt by 3
5. 1.95 km WSW of Bluff City, KansasThu, Dec 10, 4:05 PM CST · 3945 days ago · 5 km deep · 72 km away
6. 2.25 km WSW of Bluff City, KansasThu, Dec 10, 4:05 PM CST · 3945 days ago · 6 km deep · 71 km away
7. 2.15 km WSW of Bluff City, KansasThu, Dec 10, 3:54 PM CST · 3945 days ago · 6 km deep · 71 km away
8. 2.05 km WSW of Bluff City, KansasThu, Dec 10, 3:52 PM CST · 3945 days ago · 6 km deep · 71 km away
9. 1.65 km WSW of Bluff City, KansasThu, Dec 10, 3:49 PM CST · 3945 days ago · 6 km deep · 71 km away
10. 1.55 km WSW of Bluff City, KansasThu, Dec 10, 2:12 PM CST · 3945 days ago · 5 km deep · 71 km away
11. 2.83 km NE of Orlando, OklahomaThu, Dec 10, 10:13 AM CST · 3945 days ago · 5 km deep · 97 km away
12. 2.7OklahomaThu, Dec 10, 4:16 AM CST · 3945 days ago · 3 km deep · 37 km away
13. 2.79 km NNE of Nash, OklahomaThu, Dec 10, 12:22 AM CST · 3945 days ago · 6 km deep · 39 km away
14. 2.616 km SE of Waynoka, OklahomaWed, Dec 9, 5:50 PM CST · 3946 days ago · 5 km deep · 37 km away
15. 3.39 km NW of Helena, OklahomaWed, Dec 9, 5:12 PM CST · 3946 days ago · 4 km deep · 11 km away · felt by 3
16. 2.16 km S of Harper, KansasWed, Dec 9, 3:00 PM CST · 3946 days ago · 4 km deep · 85 km away
17. 2.16 km ENE of Anthony, KansasWed, Dec 9, 9:16 AM CST · 3946 days ago · 4 km deep · 83 km away · felt by 2
18. 2.64 km N of Helena, OklahomaWed, Dec 9, 12:03 AM CST · 3946 days ago · 6 km deep · 11 km away
19. 3.09 km NNW of Lamont, OklahomaTue, Dec 8, 8:14 PM CST · 3946 days ago · 6 km deep · 71 km away · felt by 1
20. 1.75 km NNE of Anthony, KansasTue, Dec 8, 6:41 PM CST · 3947 days ago · 3 km deep · 82 km away

From the USGS Earthquake Hazards Program and its partner networks, event us20004gc7. Read Mon, Sep 28, 2026, 12:34 PM UTC.