M1.9 earthquake 68 km E of Adak, Alaska

Magnitude

1.9 (ML, local (Richter)), micro

Magnitude from

Alaska Earthquake Center

Local time

Thu, Apr 21, 2016, 4:27 PM HADT

UTC

2016-04-22 01:27:50 UTC

Depth

25.7 km (16.0 mi), shallow

Epicenter

51.822° N, 175.640° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Stations used

24

After

1. 3.8Andreanof Islands, Aleutian Islands, AlaskaFri, Apr 22, 12:00 AM HADT · 3817 days ago · 34 km deep · 69 km away
2. 2.246 km NW of Atka, AlaskaFri, Apr 22, 2:33 AM HADT · 3817 days ago · 228 km deep · 95 km away
3. 2.189 km SW of Atka, AlaskaSun, Apr 24, 3:01 PM HADT · 3814 days ago · 49 km deep · 29 km away
4. 2.4113 km ESE of Adak, AlaskaSun, Apr 24, 8:53 PM HADT · 3814 days ago · 20 km deep · 58 km away
5. 4.676 km SSW of Atka, AlaskaMon, Apr 25, 5:16 AM HADT · 3814 days ago · 43 km deep · 78 km away
6. 4.388 km SSW of Atka, AlaskaMon, Apr 25, 5:34 AM HADT · 3814 days ago · 26 km deep · 84 km away
7. 2.690 km SSW of Atka, AlaskaMon, Apr 25, 5:42 AM HADT · 3814 days ago · 20 km deep · 85 km away
8. 2.396 km SSW of Atka, AlaskaMon, Apr 25, 6:30 AM HADT · 3814 days ago · 26 km deep · 89 km away
9. 2.592 km SSW of Atka, AlaskaMon, Apr 25, 6:49 AM HADT · 3814 days ago · 13 km deep · 88 km away
10. 4.192 km SSW of Atka, AlaskaMon, Apr 25, 6:58 AM HADT · 3814 days ago · 26 km deep · 90 km away
11. 2.890 km SSW of Atka, AlaskaMon, Apr 25, 8:04 AM HADT · 3814 days ago · 13 km deep · 82 km away
12. 2.663 km ESE of Adak, AlaskaMon, Apr 25, 8:30 AM HADT · 3814 days ago · 33 km deep · 30 km away
13. 1.896 km SSW of Atka, AlaskaMon, Apr 25, 10:16 AM HADT · 3813 days ago · 24 km deep · 87 km away
14. 1.737 km SSE of Adak, AlaskaMon, Apr 25, 4:44 PM HADT · 3813 days ago · 35 km deep · 58 km away
15. 1.972 km SE of Adak, AlaskaMon, Apr 25, 10:40 PM HADT · 3813 days ago · 50 km deep · 42 km away
16. 1.735 km S of Adak, AlaskaTue, Apr 26, 6:54 AM HADT · 3813 days ago · 39 km deep · 74 km away
17. 2.2Andreanof Islands, Aleutian Islands, AlaskaTue, Apr 26, 11:38 AM HADT · 3812 days ago · 1 km deep · 83 km away
18. 2.652 km S of Atka, AlaskaThu, Apr 28, 8:59 AM HADT · 3811 days ago · 27 km deep · 95 km away
19. 1.643 km S of Adak, AlaskaThu, Apr 28, 10:05 PM HADT · 3810 days ago · 38 km deep · 79 km away
20. 1.637 km ESE of Adak, AlaskaFri, Apr 29, 1:10 PM HADT · 3809 days ago · 62 km deep · 33 km away
21. 1.871 km SSW of Atka, AlaskaFri, Apr 29, 3:23 PM HADT · 3809 days ago · 11 km deep · 86 km away
22. 1.836 km SW of Atka, AlaskaFri, Apr 29, 8:26 PM HADT · 3809 days ago · 67 km deep · 76 km away
23. 2.480 km E of Adak, AlaskaSat, Apr 30, 12:48 AM HADT · 3809 days ago · 15 km deep · 12 km away
24. 1.83 km NNW of Adak, AlaskaSat, Apr 30, 1:01 PM HADT · 3808 days ago · 81 km deep · 70 km away
25. 1.848 km E of Adak, AlaskaSat, Apr 30, 7:05 PM HADT · 3808 days ago · 137 km deep · 23 km away
26. 3.189 km S of Atka, AlaskaSat, Apr 30, 9:02 PM HADT · 3808 days ago · 21 km deep · 100 km away
27. 1.685 km SSW of Atka, AlaskaSat, Apr 30, 9:44 PM HADT · 3808 days ago · 2 km deep · 89 km away
28. 1.690 km S of Atka, AlaskaSun, May 1, 3:00 AM HADT · 3808 days ago · 17 km deep · 100 km away
29. 1.686 km SSW of Atka, AlaskaSun, May 1, 3:12 AM HADT · 3808 days ago · 4 km deep · 92 km away
30. 2.447 km SSW of Atka, AlaskaMon, May 2, 6:14 AM HADT · 3807 days ago · 46 km deep · 81 km away
31. 1.799 km SW of Atka, AlaskaMon, May 2, 4:54 PM HADT · 3806 days ago · 27 km deep · 37 km away
32. 1.684 km SW of Atka, AlaskaMon, May 2, 7:22 PM HADT · 3806 days ago · 16 km deep · 51 km away
33. 1.696 km ESE of Adak, AlaskaMon, May 2, 11:45 PM HADT · 3806 days ago · 51 km deep · 33 km away
34. 2.171 km E of Adak, AlaskaTue, May 3, 4:18 AM HADT · 3806 days ago · 73 km deep · 13 km away
35. 1.583 km SW of Atka, AlaskaTue, May 3, 8:29 PM HADT · 3805 days ago · 46 km deep · 45 km away
36. 2.184 km SW of Atka, AlaskaWed, May 4, 4:20 PM HADT · 3804 days ago · 20 km deep · 32 km away
37. 2.631 km SSW of Atka, AlaskaThu, May 5, 1:04 PM HADT · 3803 days ago · 53 km deep · 83 km away
38. 2.222 km WSW of Atka, AlaskaFri, May 6, 3:53 PM HADT · 3802 days ago · 139 km deep · 84 km away
39. 1.715 km S of Adak, AlaskaSat, May 7, 1:13 AM HADT · 3802 days ago · 68 km deep · 71 km away
40. 2.344 km ENE of Adak, AlaskaSat, May 7, 4:39 AM HADT · 3802 days ago · 85 km deep · 30 km away
41. 1.973 km WSW of Atka, AlaskaSun, May 8, 9:50 AM HADT · 3801 days ago · 97 km deep · 37 km away
42. 1.933 km SSE of Adak, AlaskaSun, May 8, 11:14 PM HADT · 3800 days ago · 39 km deep · 58 km away
43. 2.361 km S of Atka, AlaskaMon, May 9, 3:11 AM HADT · 3800 days ago · 11 km deep · 97 km away
44. 1.954 km SSW of Atka, AlaskaMon, May 9, 8:49 AM HADT · 3800 days ago · 15 km deep · 76 km away
45. 2.257 km E of Adak, AlaskaMon, May 9, 1:29 PM HADT · 3799 days ago · 62 km deep · 12 km away
46. 1.553 km SSE of Adak, AlaskaTue, May 10, 1:48 PM HADT · 3798 days ago · 22 km deep · 61 km away
47. 1.754 km SSE of Adak, AlaskaTue, May 10, 10:36 PM HADT · 3798 days ago · 21 km deep · 75 km away
48. 2.057 km ENE of Adak, AlaskaWed, May 11, 5:24 AM HADT · 3798 days ago · 105 km deep · 27 km away
49. 3.795 km SW of Atka, AlaskaThu, May 12, 3:46 AM HADT · 3797 days ago · 26 km deep · 38 km away
50. 1.597 km ESE of Adak, AlaskaThu, May 12, 9:35 AM HADT · 3797 days ago · 20 km deep · 33 km away
51. 1.953 km ENE of Adak, AlaskaThu, May 12, 10:13 AM HADT · 3797 days ago · 108 km deep · 28 km away
52. 2.2Andreanof Islands, Aleutian Islands, AlaskaThu, May 12, 1:31 PM HADT · 3796 days ago · 42 km deep · 77 km away
53. 4.1101 km ESE of Adak, AlaskaThu, May 12, 4:28 PM HADT · 3796 days ago · 27 km deep · 40 km away
54. 2.032 km ENE of Adak, AlaskaFri, May 13, 12:26 AM HADT · 3796 days ago · 76 km deep · 39 km away
55. 3.825 km SSW of Adak, AlaskaFri, May 13, 11:05 AM HADT · 3795 days ago · 51 km deep · 78 km away
56. 1.530 km SSW of Adak, AlaskaFri, May 13, 11:16 AM HADT · 3795 days ago · 38 km deep · 84 km away
57. 2.797 km SW of Atka, AlaskaFri, May 13, 9:51 PM HADT · 3795 days ago · 41 km deep · 37 km away
58. 1.556 km SSE of Adak, AlaskaSat, May 14, 6:05 AM HADT · 3795 days ago · 21 km deep · 69 km away
59. 1.869 km ESE of Adak, AlaskaSat, May 14, 10:49 PM HADT · 3794 days ago · 54 km deep · 33 km away
60. 2.066 km SE of Adak, AlaskaSun, May 15, 5:21 AM HADT · 3794 days ago · 32 km deep · 34 km away

The first 60 of 127.

Before

1. 1.549 km ESE of Adak, AlaskaThu, Apr 21, 1:19 PM HADT · 3817 days ago · 55 km deep · 27 km away
2. 2.255 km SSW of Atka, AlaskaThu, Apr 21, 1:00 PM HADT · 3817 days ago · 11 km deep · 84 km away
3. 2.425 km SSE of Adak, AlaskaWed, Apr 20, 8:32 PM HADT · 3818 days ago · 49 km deep · 61 km away
4. 2.822 km SSE of Adak, AlaskaWed, Apr 20, 4:00 PM HADT · 3818 days ago · 53 km deep · 59 km away
5. 1.847 km SSE of Adak, AlaskaWed, Apr 20, 3:48 PM HADT · 3818 days ago · 25 km deep · 68 km away
6. 3.755 km NE of Adak, AlaskaWed, Apr 20, 3:26 PM HADT · 3818 days ago · 179 km deep · 56 km away
7. 1.968 km WSW of Atka, AlaskaWed, Apr 20, 8:14 AM HADT · 3819 days ago · 78 km deep · 39 km away
8. 2.189 km SSE of Adak, AlaskaWed, Apr 20, 3:40 AM HADT · 3819 days ago · 26 km deep · 92 km away
9. 1.861 km SE of Adak, AlaskaTue, Apr 19, 5:21 PM HADT · 3819 days ago · 50 km deep · 36 km away
10. 2.319 km SW of Atka, AlaskaTue, Apr 19, 3:29 AM HADT · 3820 days ago · 149 km deep · 90 km away
11. 2.135 km SE of Adak, AlaskaMon, Apr 18, 12:17 PM HADT · 3820 days ago · 60 km deep · 43 km away
12. 1.628 km ESE of Adak, AlaskaMon, Apr 18, 10:28 AM HADT · 3820 days ago · 61 km deep · 46 km away
13. 2.577 km WNW of Atka, AlaskaMon, Apr 18, 6:04 AM HADT · 3821 days ago · 243 km deep · 64 km away
14. 1.875 km SE of Adak, AlaskaSun, Apr 17, 10:46 PM HADT · 3821 days ago · 14 km deep · 60 km away
15. 2.399 km SE of Adak, AlaskaSun, Apr 17, 6:12 PM HADT · 3821 days ago · 33 km deep · 53 km away
16. 1.870 km SSW of Atka, AlaskaSun, Apr 17, 5:18 PM HADT · 3821 days ago · 21 km deep · 64 km away
17. 2.066 km SSW of Atka, AlaskaSun, Apr 17, 5:17 PM HADT · 3821 days ago · 38 km deep · 65 km away
18. 2.058 km SE of Adak, AlaskaSun, Apr 17, 12:00 PM HADT · 3821 days ago · 13 km deep · 55 km away
19. 2.357 km S of Atka, AlaskaSun, Apr 17, 2:07 AM HADT · 3822 days ago · 40 km deep · 93 km away
20. 1.733 km SSW of Adak, AlaskaSat, Apr 16, 4:16 PM HADT · 3822 days ago · 33 km deep · 80 km away

From the USGS Earthquake Hazards Program and its partner networks, event ak01656whjnf (also filed as ak13490133). Read Sun, Oct 4, 2026, 6:44 AM UTC.