M1.8 earthquake 90 km WSW of Adak, Alaska

Magnitude

1.8 (ML, local (Richter)), micro

Magnitude from

Alaska Earthquake Center

Local time

Tue, Sep 20, 2016, 8:33 AM HADT

UTC

2016-09-20 17:33:12 UTC

Depth

32.1 km (19.9 mi), shallow

Epicenter

51.485° N, 177.784° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Stations used

21

After

1. 2.5113 km WSW of Adak, AlaskaWed, Sep 21, 1:16 AM HADT · 3665 days ago · 23 km deep · 30 km away
2. 2.4142 km WSW of Adak, AlaskaWed, Sep 21, 9:06 PM HADT · 3664 days ago · 53 km deep · 52 km away
3. 2.095 km WSW of Adak, AlaskaWed, Sep 21, 9:45 PM HADT · 3664 days ago · 39 km deep · 6 km away
4. 2.0105 km WSW of Adak, AlaskaWed, Sep 21, 10:53 PM HADT · 3664 days ago · 42 km deep · 16 km away
5. 2.7156 km WSW of Adak, AlaskaThu, Sep 22, 3:35 AM HADT · 3664 days ago · 26 km deep · 66 km away
6. 3.14 km ESE of Adak, AlaskaThu, Sep 22, 1:19 PM HADT · 3663 days ago · 72 km deep · 93 km away
7. 1.846 km SW of Adak, AlaskaFri, Sep 23, 3:46 AM HADT · 3663 days ago · 44 km deep · 47 km away
8. 1.731 km S of Adak, AlaskaFri, Sep 23, 4:00 PM HADT · 3662 days ago · 42 km deep · 81 km away
9. 2.640 km S of Adak, AlaskaFri, Sep 23, 5:54 PM HADT · 3662 days ago · 42 km deep · 79 km away
10. 2.033 km SSE of Adak, AlaskaSat, Sep 24, 11:19 AM HADT · 3661 days ago · 41 km deep · 94 km away
11. 2.1144 km WSW of Adak, AlaskaSun, Sep 25, 10:35 PM HADT · 3660 days ago · 51 km deep · 54 km away
12. 1.792 km SW of Adak, AlaskaMon, Sep 26, 8:50 AM HADT · 3660 days ago · 35 km deep · 21 km away
13. 1.7107 km SSW of Adak, AlaskaMon, Sep 26, 2:32 PM HADT · 3659 days ago · 57 km deep · 69 km away
14. 1.5112 km WSW of Adak, AlaskaMon, Sep 26, 7:49 PM HADT · 3659 days ago · 13 km deep · 27 km away
15. 1.5110 km SW of Adak, AlaskaMon, Sep 26, 11:17 PM HADT · 3659 days ago · 39 km deep · 26 km away
16. 4.3116 km SSW of Adak, AlaskaTue, Sep 27, 1:25 AM HADT · 3659 days ago · 40 km deep · 62 km away
17. 1.9135 km SSW of Adak, AlaskaTue, Sep 27, 2:08 AM HADT · 3659 days ago · 23 km deep · 83 km away
18. 2.6120 km SSW of Adak, AlaskaTue, Sep 27, 2:30 AM HADT · 3659 days ago · 52 km deep · 66 km away
19. 1.669 km SW of Adak, AlaskaTue, Sep 27, 3:00 AM HADT · 3659 days ago · 35 km deep · 24 km away
20. 2.2117 km SSW of Adak, AlaskaTue, Sep 27, 6:45 AM HADT · 3659 days ago · 61 km deep · 65 km away
21. 2.2138 km SSW of Adak, AlaskaTue, Sep 27, 12:41 PM HADT · 3658 days ago · 25 km deep · 85 km away
22. 2.7132 km SSW of Adak, AlaskaTue, Sep 27, 12:57 PM HADT · 3658 days ago · 22 km deep · 81 km away
23. 2.1128 km SSW of Adak, AlaskaTue, Sep 27, 1:57 PM HADT · 3658 days ago · 25 km deep · 76 km away
24. 2.7138 km SSW of Adak, AlaskaTue, Sep 27, 2:19 PM HADT · 3658 days ago · 25 km deep · 84 km away
25. 2.1124 km SSW of Adak, AlaskaTue, Sep 27, 6:01 PM HADT · 3658 days ago · 40 km deep · 70 km away
26. 1.792 km WSW of Adak, AlaskaTue, Sep 27, 10:53 PM HADT · 3658 days ago · 63 km deep · 21 km away
27. 1.579 km WSW of Adak, AlaskaTue, Sep 27, 10:55 PM HADT · 3658 days ago · 32 km deep · 21 km away
28. 2.154 km WSW of Adak, AlaskaWed, Sep 28, 8:59 AM HADT · 3658 days ago · 90 km deep · 40 km away
29. 2.1123 km SSW of Adak, AlaskaWed, Sep 28, 10:45 AM HADT · 3657 days ago · 25 km deep · 69 km away
30. 2.7128 km W of Adak, AlaskaWed, Sep 28, 1:47 PM HADT · 3657 days ago · 14 km deep · 59 km away
31. 2.9131 km SSW of Adak, AlaskaWed, Sep 28, 4:28 PM HADT · 3657 days ago · 24 km deep · 77 km away
32. 2.3130 km W of Adak, AlaskaWed, Sep 28, 9:03 PM HADT · 3657 days ago · 16 km deep · 57 km away
33. 1.883 km SW of Adak, AlaskaWed, Sep 28, 9:59 PM HADT · 3657 days ago · 35 km deep · 14 km away
34. 2.386 km SW of Adak, AlaskaThu, Sep 29, 12:08 AM HADT · 3657 days ago · 55 km deep · 25 km away
35. 2.7137 km SSW of Adak, AlaskaThu, Sep 29, 12:14 AM HADT · 3657 days ago · 31 km deep · 87 km away
36. 1.933 km SSE of Adak, AlaskaThu, Sep 29, 6:45 AM HADT · 3657 days ago · 36 km deep · 94 km away
37. 1.728 km WSW of Adak, AlaskaThu, Sep 29, 8:29 AM HADT · 3657 days ago · 68 km deep · 62 km away
38. 2.0146 km WSW of Adak, AlaskaThu, Sep 29, 5:18 PM HADT · 3656 days ago · 47 km deep · 56 km away
39. 2.9104 km SW of Adak, AlaskaThu, Sep 29, 6:59 PM HADT · 3656 days ago · 31 km deep · 22 km away
40. 1.528 km SSW of Adak, AlaskaFri, Sep 30, 1:54 PM HADT · 3655 days ago · 54 km deep · 72 km away
41. 3.0111 km WSW of Adak, AlaskaSat, Oct 1, 3:16 AM HADT · 3655 days ago · 17 km deep · 24 km away
42. 3.427 km SW of Adak, AlaskaSat, Oct 1, 8:52 AM HADT · 3655 days ago · 15 km deep · 63 km away
43. 1.627 km SW of Adak, AlaskaSun, Oct 2, 2:40 AM HADT · 3654 days ago · 14 km deep · 63 km away
44. 2.0129 km W of Adak, AlaskaSun, Oct 2, 8:55 AM HADT · 3654 days ago · 14 km deep · 62 km away
45. 1.890 km WSW of Adak, AlaskaSun, Oct 2, 3:48 PM HADT · 3653 days ago · 44 km deep · 2 km away
46. 1.544 km S of Adak, AlaskaTue, Oct 4, 10:07 AM HADT · 3651 days ago · 43 km deep · 86 km away
47. 1.8110 km WSW of Adak, AlaskaWed, Oct 5, 11:21 AM HADT · 3650 days ago · 13 km deep · 27 km away
48. 2.964 km SW of Adak, AlaskaSat, Oct 8, 12:19 PM HADT · 3647 days ago · 36 km deep · 31 km away
49. 2.027 km WSW of Adak, AlaskaSat, Oct 8, 1:13 PM HADT · 3647 days ago · 13 km deep · 64 km away
50. 3.529 km SSW of Adak, AlaskaSun, Oct 9, 12:04 AM HADT · 3647 days ago · 13 km deep · 71 km away
51. 1.522 km SW of Adak, AlaskaSun, Oct 9, 1:16 AM HADT · 3647 days ago · 22 km deep · 70 km away
52. 1.748 km SW of Adak, AlaskaSun, Oct 9, 12:09 PM HADT · 3646 days ago · 7 km deep · 51 km away
53. 2.554 km WSW of Adak, AlaskaSun, Oct 9, 10:39 PM HADT · 3646 days ago · 68 km deep · 40 km away
54. 3.347 km SSE of Adak, AlaskaMon, Oct 10, 9:57 PM HADT · 3645 days ago · 26 km deep · 97 km away
55. 4.386 km SW of Adak, AlaskaTue, Oct 11, 11:24 PM HADT · 3644 days ago · 55 km deep · 35 km away
56. 2.4143 km WSW of Adak, AlaskaThu, Oct 13, 9:45 PM HADT · 3642 days ago · 20 km deep · 59 km away
57. 1.726 km W of Adak, AlaskaFri, Oct 14, 1:01 AM HADT · 3642 days ago · 11 km deep · 66 km away
58. 2.3129 km SSW of Adak, AlaskaFri, Oct 14, 9:10 AM HADT · 3642 days ago · 52 km deep · 77 km away
59. 2.1108 km WSW of Adak, AlaskaFri, Oct 14, 11:50 AM HADT · 3641 days ago · 20 km deep · 19 km away
60. 2.367 km WSW of Adak, AlaskaSat, Oct 15, 5:12 AM HADT · 3641 days ago · 68 km deep · 28 km away

The first 60 of 108.

Before

1. 2.719 km WSW of Adak, AlaskaMon, Sep 19, 11:31 AM HADT · 3666 days ago · 27 km deep · 71 km away
2. 2.5160 km WSW of Adak, AlaskaMon, Sep 19, 8:19 AM HADT · 3667 days ago · 34 km deep · 72 km away
3. 2.0130 km WSW of Adak, AlaskaSun, Sep 18, 9:43 PM HADT · 3667 days ago · 13 km deep · 49 km away
4. 1.670 km WSW of Adak, AlaskaSun, Sep 18, 9:42 PM HADT · 3667 days ago · 27 km deep · 20 km away
5. 2.080 km WSW of Adak, AlaskaSun, Sep 18, 8:46 PM HADT · 3667 days ago · 43 km deep · 10 km away
6. 3.288 km WSW of Adak, AlaskaSat, Sep 17, 12:58 AM HADT · 3669 days ago · 63 km deep · 3 km away
7. 2.3173 km W of Adak, AlaskaFri, Sep 16, 2:36 PM HADT · 3669 days ago · 37 km deep · 96 km away
8. 2.9134 km WSW of Adak, AlaskaFri, Sep 16, 2:24 PM HADT · 3669 days ago · 16 km deep · 48 km away
9. 2.3144 km WSW of Adak, AlaskaThu, Sep 15, 11:36 PM HADT · 3670 days ago · 54 km deep · 53 km away
10. 2.3131 km W of Adak, AlaskaThu, Sep 15, 11:46 AM HADT · 3670 days ago · 84 km deep · 62 km away
11. 1.875 km WSW of Adak, AlaskaThu, Sep 15, 4:23 AM HADT · 3671 days ago · 40 km deep · 16 km away
12. 2.1109 km SW of Adak, AlaskaThu, Sep 15, 3:27 AM HADT · 3671 days ago · 44 km deep · 23 km away
13. 4.4110 km SW of Adak, AlaskaThu, Sep 15, 2:57 AM HADT · 3671 days ago · 46 km deep · 22 km away
14. 1.977 km WSW of Adak, AlaskaMon, Sep 12, 11:35 PM HADT · 3673 days ago · 63 km deep · 25 km away
15. 1.720 km SW of Adak, AlaskaMon, Sep 12, 11:22 PM HADT · 3673 days ago · 66 km deep · 71 km away
16. 1.6107 km WSW of Adak, AlaskaMon, Sep 12, 4:03 AM HADT · 3674 days ago · 31 km deep · 21 km away
17. 2.2177 km WSW of Adak, AlaskaMon, Sep 12, 4:00 AM HADT · 3674 days ago · 71 km deep · 96 km away
18. 1.972 km WSW of Adak, AlaskaSun, Sep 11, 3:54 PM HADT · 3674 days ago · 71 km deep · 24 km away
19. 1.8117 km WSW of Adak, AlaskaSun, Sep 11, 3:31 PM HADT · 3674 days ago · 13 km deep · 33 km away
20. 3.4Andreanof Islands, Aleutian Islands, AlaskaSun, Sep 11, 5:18 AM HADT · 3675 days ago · 30 km deep · 91 km away

From the USGS Earthquake Hazards Program and its partner networks, event ak016c4w737n (also filed as ak14005419). Read Sun, Oct 4, 2026, 5:42 AM UTC.