M2.1 earthquake 90 km SSE of Atka, Alaska

Magnitude

2.1 (ML, local (Richter)), micro

Magnitude from

Alaska Earthquake Center

Local time

Sat, Aug 20, 2016, 1:02 PM HADT

UTC

2016-08-20 22:02:31 UTC

Depth

40.5 km (25.2 mi), shallow

Epicenter

51.435° N, 173.744° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Stations used

10

After

1. 1.926 km SSW of Atka, AlaskaSat, Aug 20, 8:37 PM HADT · 3696 days ago · 61 km deep · 72 km away
2. 1.866 km SW of Atka, AlaskaTue, Aug 23, 5:10 AM HADT · 3694 days ago · 13 km deep · 81 km away
3. 2.061 km SSW of Atka, AlaskaTue, Aug 23, 5:47 AM HADT · 3694 days ago · 16 km deep · 68 km away
4. 2.146 km SSE of Atka, AlaskaWed, Aug 24, 6:56 AM HADT · 3693 days ago · 59 km deep · 44 km away
5. 2.541 km SSW of Atka, AlaskaWed, Aug 24, 11:08 AM HADT · 3693 days ago · 177 km deep · 61 km away
6. 1.953 km SE of Atka, AlaskaWed, Aug 24, 1:48 PM HADT · 3693 days ago · 16 km deep · 41 km away
7. 2.366 km SW of Atka, AlaskaWed, Aug 24, 6:19 PM HADT · 3693 days ago · 47 km deep · 92 km away
8. 2.757 km SSE of Atka, AlaskaWed, Aug 24, 10:29 PM HADT · 3692 days ago · 54 km deep · 34 km away
9. 2.169 km SE of Atka, AlaskaThu, Aug 25, 4:55 PM HADT · 3692 days ago · 14 km deep · 33 km away
10. 1.790 km S of Atka, AlaskaSat, Aug 27, 2:20 AM HADT · 3690 days ago · 38 km deep · 21 km away
11. 2.251 km E of Atka, AlaskaSat, Aug 27, 7:27 PM HADT · 3690 days ago · 78 km deep · 83 km away
12. 1.760 km SSW of Atka, AlaskaSun, Aug 28, 2:00 AM HADT · 3689 days ago · 26 km deep · 65 km away
13. 2.473 km SSE of Atka, AlaskaSun, Aug 28, 11:48 AM HADT · 3689 days ago · 2 km deep · 20 km away
14. 1.643 km ESE of Atka, AlaskaMon, Aug 29, 10:34 AM HADT · 3688 days ago · 1 km deep · 70 km away
15. 2.448 km SW of Atka, AlaskaFri, Sep 2, 4:47 AM HADT · 3684 days ago · 43 km deep · 80 km away
16. 2.139 km WSW of Atka, AlaskaFri, Sep 2, 7:02 AM HADT · 3684 days ago · 72 km deep · 90 km away
17. 3.985 km S of Atka, AlaskaFri, Sep 2, 7:57 PM HADT · 3683 days ago · 46 km deep · 15 km away
18. 2.260 km SSE of Atka, AlaskaSat, Sep 3, 2:12 AM HADT · 3683 days ago · 47 km deep · 34 km away
19. 2.340 km ENE of Atka, AlaskaSat, Sep 3, 5:57 AM HADT · 3683 days ago · 78 km deep · 100 km away
20. 2.786 km S of Atka, AlaskaSat, Sep 3, 3:21 PM HADT · 3683 days ago · 26 km deep · 24 km away
21. 2.067 km S of Atka, AlaskaSun, Sep 4, 9:09 AM HADT · 3682 days ago · 21 km deep · 41 km away
22. 4.888 km SSE of Atka, AlaskaTue, Sep 6, 4:36 PM HADT · 3680 days ago · 42 km deep · 20 km away
23. 1.816 km SSW of Atka, AlaskaThu, Sep 8, 8:47 AM HADT · 3678 days ago · 65 km deep · 81 km away
24. 2.27 km SSW of Atka, AlaskaThu, Sep 8, 3:54 PM HADT · 3678 days ago · 162 km deep · 85 km away
25. 2.171 km SSE of Atka, AlaskaSun, Sep 11, 9:15 PM HADT · 3674 days ago · 20 km deep · 23 km away
26. 2.121 km SW of Atka, AlaskaMon, Sep 12, 11:27 AM HADT · 3674 days ago · 160 km deep · 81 km away
27. 2.190 km S of Atka, AlaskaMon, Sep 12, 6:35 PM HADT · 3674 days ago · 4 km deep · 46 km away
28. 2.491 km S of Atka, AlaskaMon, Sep 12, 9:48 PM HADT · 3673 days ago · 7 km deep · 44 km away
29. 2.081 km SSW of Atka, AlaskaTue, Sep 13, 2:22 AM HADT · 3673 days ago · 3 km deep · 50 km away
30. 2.390 km S of Atka, AlaskaThu, Sep 15, 1:04 PM HADT · 3671 days ago · 63 km deep · 37 km away
31. 3.896 km SE of Atka, AlaskaThu, Sep 15, 4:59 PM HADT · 3671 days ago · 59 km deep · 56 km away
32. 3.045 km S of Atka, AlaskaFri, Sep 16, 4:36 PM HADT · 3670 days ago · 59 km deep · 48 km away
33. 2.84 km NE of Atka, AlaskaSun, Sep 18, 7:21 AM HADT · 3668 days ago · 202 km deep · 93 km away
34. 2.044 km SSW of Atka, AlaskaWed, Sep 21, 6:27 PM HADT · 3665 days ago · 43 km deep · 59 km away
35. 2.220 km SW of Atka, AlaskaWed, Sep 21, 7:12 PM HADT · 3665 days ago · 71 km deep · 83 km away
36. 2.824 km WSW of Atka, AlaskaThu, Sep 22, 11:14 AM HADT · 3664 days ago · 73 km deep · 94 km away
37. 3.1Andreanof Islands, Aleutian Islands, AlaskaThu, Sep 22, 10:06 PM HADT · 3663 days ago · 10 km deep · 38 km away
38. 3.180 km S of Atka, AlaskaTue, Sep 27, 7:34 AM HADT · 3659 days ago · 36 km deep · 42 km away
39. 2.6160 km SSE of Atka, AlaskaWed, Sep 28, 4:49 AM HADT · 3658 days ago · 28 km deep · 72 km away
40. 2.9Andreanof Islands, Aleutian Islands, AlaskaWed, Sep 28, 9:05 AM HADT · 3658 days ago · 36 km deep · 37 km away
41. 3.981 km S of Atka, AlaskaThu, Sep 29, 10:09 AM HADT · 3657 days ago · 42 km deep · 40 km away
42. 1.748 km SW of Atka, AlaskaSun, Oct 2, 11:38 AM HADT · 3654 days ago · 16 km deep · 79 km away
43. 2.8118 km SSW of Atka, AlaskaTue, Oct 4, 1:52 PM HADT · 3652 days ago · 20 km deep · 90 km away
44. 2.5125 km SSW of Atka, AlaskaTue, Oct 4, 7:02 PM HADT · 3652 days ago · 25 km deep · 92 km away
45. 3.082 km S of Atka, AlaskaThu, Oct 6, 5:18 AM HADT · 3650 days ago · 19 km deep · 35 km away
46. 3.8135 km SE of Atka, AlaskaSun, Oct 9, 8:31 AM HADT · 3647 days ago · 50 km deep · 83 km away
47. 2.555 km SE of Atka, AlaskaSun, Oct 9, 3:34 PM HADT · 3647 days ago · 49 km deep · 49 km away
48. 3.1127 km S of Atka, AlaskaMon, Oct 10, 11:14 PM HADT · 3645 days ago · 39 km deep · 44 km away
49. 4.1113 km SE of Atka, AlaskaTue, Oct 11, 7:03 PM HADT · 3645 days ago · 42 km deep · 40 km away
50. 2.8181 km SSE of Atka, AlaskaThu, Oct 13, 8:06 PM HADT · 3642 days ago · 26 km deep · 92 km away
51. 1.873 km SW of Atka, AlaskaFri, Oct 14, 8:21 AM HADT · 3642 days ago · 19 km deep · 98 km away
52. 4.1115 km S of Atka, AlaskaSun, Oct 16, 3:00 AM HADT · 3640 days ago · 31 km deep · 36 km away
53. 3.046 km SSW of Atka, AlaskaSun, Oct 16, 3:17 AM HADT · 3640 days ago · 110 km deep · 60 km away
54. 1.994 km S of Atka, AlaskaSun, Oct 16, 12:34 PM HADT · 3640 days ago · 26 km deep · 38 km away

Before

1. 2.988 km SE of Atka, AlaskaFri, Aug 19, 8:58 PM HADT · 3697 days ago · 17 km deep · 31 km away
2. 3.4Andreanof Islands, Aleutian Islands, AlaskaThu, Aug 18, 4:54 PM HADT · 3699 days ago · 10 km deep · 14 km away
3. 2.151 km S of Atka, AlaskaThu, Aug 18, 3:19 PM HADT · 3699 days ago · 11 km deep · 51 km away
4. 1.994 km S of Atka, AlaskaThu, Aug 18, 5:57 AM HADT · 3699 days ago · 26 km deep · 42 km away
5. 2.3171 km SSE of Atka, AlaskaThu, Aug 18, 5:08 AM HADT · 3699 days ago · 23 km deep · 83 km away
6. 1.740 km SSW of Atka, AlaskaThu, Aug 18, 3:49 AM HADT · 3699 days ago · 46 km deep · 64 km away
7. 2.980 km SE of Atka, AlaskaWed, Aug 17, 5:40 PM HADT · 3700 days ago · 38 km deep · 35 km away
8. 1.930 km SW of Atka, AlaskaMon, Aug 15, 9:08 AM HADT · 3702 days ago · 26 km deep · 81 km away
9. 1.923 km WSW of Atka, AlaskaSun, Aug 14, 2:26 PM HADT · 3703 days ago · 41 km deep · 89 km away
10. 1.942 km S of Atka, AlaskaSat, Aug 13, 8:24 PM HADT · 3703 days ago · 1 km deep · 57 km away
11. 3.970 km S of Atka, AlaskaSat, Aug 13, 6:11 PM HADT · 3704 days ago · 10 km deep · 27 km away
12. 3.889 km S of Atka, AlaskaThu, Aug 11, 1:39 PM HADT · 3706 days ago · 37 km deep · 33 km away
13. 3.055 km E of Atka, AlaskaThu, Aug 11, 4:24 AM HADT · 3706 days ago · 221 km deep · 89 km away
14. 2.568 km E of Atka, AlaskaWed, Aug 10, 8:25 PM HADT · 3706 days ago · 78 km deep · 83 km away
15. 2.0133 km S of Atka, AlaskaWed, Aug 10, 8:10 PM HADT · 3706 days ago · 21 km deep · 48 km away
16. 2.321 km SSE of Atka, AlaskaWed, Aug 10, 1:16 PM HADT · 3707 days ago · 106 km deep · 69 km away
17. 2.267 km SW of Atka, AlaskaWed, Aug 10, 11:43 AM HADT · 3707 days ago · 31 km deep · 79 km away
18. 2.126 km WSW of Atka, AlaskaTue, Aug 9, 6:41 AM HADT · 3708 days ago · 198 km deep · 90 km away
19. 2.1182 km SSE of Atka, AlaskaTue, Aug 9, 5:53 AM HADT · 3708 days ago · 35 km deep · 92 km away
20. 3.735 km ENE of Atka, AlaskaTue, Aug 9, 1:25 AM HADT · 3708 days ago · 175 km deep · 95 km away

From the USGS Earthquake Hazards Program and its partner networks, event ak016appbw98 (also filed as ak13891045). Read Sun, Oct 4, 2026, 3:58 PM UTC.