M1.6 earthquake 20 km WNW of Adak, Alaska

Magnitude

1.6 (ML, local (Richter)), micro

Magnitude from

AV

Local time

Tue, Oct 9, 2018, 1:36 PM HADT

UTC

2018-10-09 22:36:06 UTC

Depth

10.5 km (6.5 mi), shallow

Epicenter

51.953° N, 176.906° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 2.1 km horizontally, 2.6 km in depth

Magnitude uncertainty

±0.17

Depth from

From location

Station coverage gap

179°

Stations used

7

After

1. 2.572 km SW of Adak, AlaskaWed, Oct 10, 12:07 AM HADT · 2914 days ago · 69 km deep · 64 km away
2. 1.958 km S of Adak, AlaskaThu, Oct 11, 2:07 AM HADT · 2913 days ago · 26 km deep · 70 km away
3. 2.032 km WNW of Adak, AlaskaThu, Oct 11, 2:34 AM HADT · 2913 days ago · 114 km deep · 12 km away
4. 2.049 km SSW of Adak, AlaskaThu, Oct 11, 6:10 AM HADT · 2913 days ago · 42 km deep · 52 km away
5. 1.717 km SSE of Adak, AlaskaThu, Oct 11, 8:26 AM HADT · 2913 days ago · 54 km deep · 36 km away
6. 1.676 km WSW of Adak, AlaskaThu, Oct 11, 10:32 AM HADT · 2913 days ago · 47 km deep · 65 km away
7. 2.592 km NE of Adak, AlaskaThu, Oct 11, 10:43 PM HADT · 2912 days ago · 203 km deep · 97 km away
8. 2.387 km SW of Adak, AlaskaFri, Oct 12, 4:08 AM HADT · 2912 days ago · 39 km deep · 82 km away
9. 1.9110 km WSW of Adak, AlaskaFri, Oct 12, 4:25 AM HADT · 2912 days ago · 68 km deep · 96 km away
10. 1.854 km SW of Adak, AlaskaFri, Oct 12, 8:35 PM HADT · 2911 days ago · 47 km deep · 54 km away
11. 2.061 km WNW of Adak, AlaskaFri, Oct 12, 11:08 PM HADT · 2911 days ago · 88 km deep · 41 km away
12. 2.4105 km WSW of Adak, AlaskaSat, Oct 13, 6:31 AM HADT · 2911 days ago · 52 km deep · 96 km away
13. 3.152 km SE of Adak, AlaskaSat, Oct 13, 11:42 PM HADT · 2910 days ago · 29 km deep · 72 km away
14. 1.543 km SW of Adak, AlaskaSun, Oct 14, 7:27 PM HADT · 2909 days ago · 7 km deep · 39 km away
15. 2.457 km SSE of Adak, AlaskaMon, Oct 15, 5:49 AM HADT · 2909 days ago · 41 km deep · 75 km away
16. 2.551 km S of Adak, AlaskaMon, Oct 15, 6:15 AM HADT · 2909 days ago · 46 km deep · 63 km away
17. 2.869 km SSW of Adak, AlaskaTue, Oct 16, 6:52 PM HADT · 2907 days ago · 42 km deep · 71 km away
18. 2.072 km SSW of Adak, AlaskaTue, Oct 16, 7:27 PM HADT · 2907 days ago · 20 km deep · 75 km away
19. 2.097 km SW of Adak, AlaskaWed, Oct 17, 5:53 AM HADT · 2907 days ago · 40 km deep · 92 km away
20. 2.526 km WSW of Adak, AlaskaThu, Oct 18, 2:59 AM HADT · 2906 days ago · 69 km deep · 17 km away
21. 2.1Andreanof Islands, Aleutian Islands, AlaskaThu, Oct 18, 8:57 AM HADT · 2906 days ago · 85 km deep · 66 km away
22. 1.637 km SSW of Adak, AlaskaFri, Oct 19, 3:39 AM HADT · 2905 days ago · 58 km deep · 46 km away
23. 1.925 km SSW of Adak, AlaskaFri, Oct 19, 3:47 AM HADT · 2905 days ago · 62 km deep · 32 km away
24. 1.952 km SE of Adak, AlaskaFri, Oct 19, 4:28 AM HADT · 2905 days ago · 37 km deep · 71 km away
25. 1.984 km WSW of Adak, AlaskaFri, Oct 19, 6:21 AM HADT · 2905 days ago · 16 km deep · 73 km away
26. 1.762 km SW of Adak, AlaskaFri, Oct 19, 6:29 AM HADT · 2905 days ago · 43 km deep · 62 km away
27. 1.938 km SSE of Adak, AlaskaFri, Oct 19, 8:59 AM HADT · 2905 days ago · 45 km deep · 56 km away
28. 1.787 km SW of Adak, AlaskaFri, Oct 19, 7:32 PM HADT · 2904 days ago · 35 km deep · 80 km away
29. 2.571 km S of Adak, AlaskaSat, Oct 20, 2:13 PM HADT · 2904 days ago · 35 km deep · 79 km away
30. 1.940 km ENE of Adak, AlaskaSat, Oct 20, 5:58 PM HADT · 2903 days ago · 6 km deep · 54 km away
31. 1.831 km SW of Adak, AlaskaSun, Oct 21, 3:23 PM HADT · 2903 days ago · 63 km deep · 32 km away
32. 1.823 km WSW of Adak, AlaskaMon, Oct 22, 2:50 AM HADT · 2902 days ago · 73 km deep · 18 km away
33. 1.636 km WNW of Adak, AlaskaMon, Oct 22, 12:49 PM HADT · 2902 days ago · 77 km deep · 16 km away
34. 1.683 km WSW of Adak, AlaskaMon, Oct 22, 5:38 PM HADT · 2901 days ago · 13 km deep · 73 km away
35. 1.732 km SE of Adak, AlaskaMon, Oct 22, 8:32 PM HADT · 2901 days ago · 63 km deep · 53 km away
36. 2.446 km ENE of Adak, AlaskaTue, Oct 23, 3:14 AM HADT · 2901 days ago · 89 km deep · 63 km away
37. 1.683 km W of Adak, AlaskaTue, Oct 23, 7:50 AM HADT · 2901 days ago · 7 km deep · 65 km away
38. 1.840 km ENE of Adak, AlaskaTue, Oct 23, 12:22 PM HADT · 2901 days ago · 4 km deep · 55 km away
39. 1.868 km SSW of Adak, AlaskaWed, Oct 24, 9:08 AM HADT · 2900 days ago · 25 km deep · 71 km away
40. 2.363 km SSE of Adak, AlaskaWed, Oct 24, 2:48 PM HADT · 2900 days ago · 21 km deep · 81 km away
41. 2.555 km SE of Adak, AlaskaThu, Oct 25, 11:58 PM HADT · 2898 days ago · 28 km deep · 75 km away
42. 1.972 km SW of Adak, AlaskaFri, Oct 26, 1:58 AM HADT · 2898 days ago · 16 km deep · 67 km away
43. 1.968 km E of Adak, AlaskaFri, Oct 26, 5:03 AM HADT · 2898 days ago · 29 km deep · 87 km away
44. 1.881 km WSW of Adak, AlaskaFri, Oct 26, 6:28 AM HADT · 2898 days ago · 40 km deep · 68 km away
45. 1.627 km S of Adak, AlaskaFri, Oct 26, 6:42 AM HADT · 2898 days ago · 43 km deep · 38 km away
46. 2.053 km SSE of Adak, AlaskaFri, Oct 26, 2:31 PM HADT · 2898 days ago · 24 km deep · 72 km away
47. 2.456 km SE of Adak, AlaskaFri, Oct 26, 3:34 PM HADT · 2898 days ago · 42 km deep · 75 km away
48. 2.651 km ENE of Adak, AlaskaFri, Oct 26, 4:19 PM HADT · 2898 days ago · 168 km deep · 65 km away
49. 1.864 km W of Adak, AlaskaSat, Oct 27, 3:59 AM HADT · 2897 days ago · 13 km deep · 46 km away
50. 1.855 km S of Adak, AlaskaSat, Oct 27, 10:15 AM HADT · 2897 days ago · 9 km deep · 68 km away
51. 1.882 km W of Adak, AlaskaSat, Oct 27, 8:46 PM HADT · 2896 days ago · 0 km deep · 64 km away
52. 2.1Andreanof Islands, Aleutian Islands, AlaskaSun, Oct 28, 8:47 PM HADT · 2895 days ago · 71 km deep · 23 km away
53. 2.037 km ESE of Adak, AlaskaMon, Oct 29, 3:58 AM HADT · 2895 days ago · 65 km deep · 58 km away
54. 1.950 km SW of Adak, AlaskaMon, Oct 29, 5:41 PM HADT · 2894 days ago · 23 km deep · 48 km away
55. 1.942 km ENE of Adak, AlaskaMon, Oct 29, 5:52 PM HADT · 2894 days ago · 7 km deep · 57 km away
56. 2.5104 km WSW of Adak, AlaskaMon, Oct 29, 5:56 PM HADT · 2894 days ago · 41 km deep · 95 km away
57. 1.7102 km SW of Adak, AlaskaMon, Oct 29, 10:13 PM HADT · 2894 days ago · 50 km deep · 94 km away
58. 1.6Andreanof Islands, Aleutian Islands, AlaskaMon, Oct 29, 11:54 PM HADT · 2894 days ago · 63 km deep · 90 km away
59. 1.653 km SSE of Adak, AlaskaTue, Oct 30, 3:37 AM HADT · 2894 days ago · 22 km deep · 71 km away
60. 2.390 km WSW of Adak, AlaskaTue, Oct 30, 4:55 AM HADT · 2894 days ago · 69 km deep · 76 km away

The first 60 of 141.

Before

1. 4.180 km SW of Adak, AlaskaTue, Oct 9, 9:57 AM HADT · 2915 days ago · 40 km deep · 73 km away
2. 1.757 km SSW of Adak, AlaskaMon, Oct 8, 11:10 PM HADT · 2915 days ago · 24 km deep · 61 km away
3. 1.890 km WSW of Adak, AlaskaMon, Oct 8, 7:10 PM HADT · 2915 days ago · 65 km deep · 75 km away
4. 2.034 km SSE of Adak, AlaskaMon, Oct 8, 5:39 PM HADT · 2915 days ago · 42 km deep · 52 km away
5. 2.026 km WSW of Adak, AlaskaMon, Oct 8, 5:07 PM HADT · 2916 days ago · 79 km deep · 19 km away
6. 1.650 km SW of Adak, AlaskaMon, Oct 8, 1:37 PM HADT · 2916 days ago · 40 km deep · 50 km away
7. 2.139 km S of Adak, AlaskaMon, Oct 8, 12:52 PM HADT · 2916 days ago · 35 km deep · 51 km away
8. 2.138 km ESE of Adak, AlaskaMon, Oct 8, 12:21 AM HADT · 2916 days ago · 57 km deep · 59 km away
9. 2.373 km SSW of Adak, AlaskaSun, Oct 7, 8:45 AM HADT · 2917 days ago · 16 km deep · 77 km away
10. 2.023 km NNE of Adak, AlaskaSat, Oct 6, 9:26 PM HADT · 2917 days ago · 104 km deep · 30 km away
11. 1.523 km WSW of Adak, AlaskaSat, Oct 6, 7:34 PM HADT · 2917 days ago · 15 km deep · 15 km away
12. 1.867 km E of Adak, AlaskaSat, Oct 6, 3:17 PM HADT · 2918 days ago · 27 km deep · 87 km away
13. 2.070 km SE of Adak, AlaskaSat, Oct 6, 11:38 AM HADT · 2918 days ago · 52 km deep · 91 km away
14. 2.262 km SSE of Adak, AlaskaSat, Oct 6, 11:27 AM HADT · 2918 days ago · 22 km deep · 81 km away
15. 2.572 km SE of Adak, AlaskaSat, Oct 6, 11:11 AM HADT · 2918 days ago · 35 km deep · 90 km away
16. 2.362 km SSW of Adak, AlaskaFri, Oct 5, 8:43 PM HADT · 2918 days ago · 41 km deep · 65 km away
17. 1.649 km S of Adak, AlaskaFri, Oct 5, 7:26 AM HADT · 2919 days ago · 26 km deep · 63 km away
18. 1.8103 km SW of Adak, AlaskaThu, Oct 4, 9:39 PM HADT · 2919 days ago · 26 km deep · 97 km away
19. 1.654 km SSW of Adak, AlaskaThu, Oct 4, 8:28 PM HADT · 2919 days ago · 44 km deep · 61 km away
20. 2.431 km SSE of Adak, AlaskaWed, Oct 3, 6:09 AM HADT · 2921 days ago · 54 km deep · 49 km away

From the USGS Earthquake Hazards Program and its partner networks, event av61794686. Read Fri, Oct 2, 2026, 1:46 PM UTC.