M1.6 earthquake 20 km SE of Adak, Alaska

Magnitude

1.6 (ml), micro

Local time

Fri, Aug 13, 2021, 3:40 PM HADT

UTC

2021-08-14 00:40:33 UTC

Depth

70.5 km (43.8 mi), intermediate-depth

Epicenter

51.728° N, 176.442° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Stations used

28

After

1. 1.539 km SSW of Adak, AlaskaFri, Aug 13, 4:55 PM HADT · 1867 days ago · 12 km deep · 39 km away
2. 1.560 km SE of Adak, AlaskaFri, Aug 13, 5:37 PM HADT · 1867 days ago · 22 km deep · 40 km away
3. 1.783 km SW of Adak, AlaskaFri, Aug 13, 11:26 PM HADT · 1867 days ago · 30 km deep · 88 km away
4. 1.667 km SSW of Adak, AlaskaSat, Aug 14, 8:38 AM HADT · 1867 days ago · 27 km deep · 62 km away
5. 2.6101 km SSW of Adak, AlaskaSun, Aug 15, 6:31 PM HADT · 1865 days ago · 24 km deep · 94 km away
6. 1.7102 km SSW of Adak, AlaskaSun, Aug 15, 9:45 PM HADT · 1865 days ago · 47 km deep · 96 km away
7. 3.183 km E of Adak, AlaskaSun, Aug 15, 11:11 PM HADT · 1865 days ago · 73 km deep · 70 km away
8. 1.648 km SW of Adak, AlaskaMon, Aug 16, 1:41 PM HADT · 1864 days ago · 42 km deep · 48 km away
9. 2.760 km SW of Adak, AlaskaMon, Aug 16, 8:48 PM HADT · 1864 days ago · 69 km deep · 64 km away
10. 1.514 km SSE of Adak, AlaskaWed, Aug 18, 2:44 AM HADT · 1863 days ago · 80 km deep · 7 km away
11. 1.956 km W of Adak, AlaskaWed, Aug 18, 3:50 AM HADT · 1863 days ago · 92 km deep · 70 km away
12. 1.573 km WSW of Atka, AlaskaWed, Aug 18, 12:02 PM HADT · 1863 days ago · 64 km deep · 90 km away
13. 1.572 km SSE of Adak, AlaskaWed, Aug 18, 10:51 PM HADT · 1862 days ago · 21 km deep · 53 km away
14. 1.654 km WNW of Adak, AlaskaWed, Aug 18, 11:08 PM HADT · 1862 days ago · 128 km deep · 74 km away
15. 2.053 km ENE of Adak, AlaskaThu, Aug 19, 3:58 AM HADT · 1862 days ago · 146 km deep · 51 km away
16. 3.464 km SE of Adak, AlaskaThu, Aug 19, 2:20 PM HADT · 1861 days ago · 35 km deep · 44 km away
17. 1.668 km SW of Adak, AlaskaSat, Aug 21, 2:56 AM HADT · 1860 days ago · 51 km deep · 71 km away
18. 1.610 km SW of Adak, AlaskaSat, Aug 21, 11:52 AM HADT · 1860 days ago · 81 km deep · 21 km away
19. 3.064 km SSW of Adak, AlaskaSat, Aug 21, 3:02 PM HADT · 1859 days ago · 35 km deep · 58 km away
20. 2.687 km S of Adak, AlaskaSat, Aug 21, 5:28 PM HADT · 1859 days ago · 35 km deep · 76 km away
21. 1.915 km NE of Adak, AlaskaSun, Aug 22, 3:16 AM HADT · 1859 days ago · 151 km deep · 28 km away
22. 1.664 km ENE of Adak, AlaskaSun, Aug 22, 3:51 AM HADT · 1859 days ago · 12 km deep · 61 km away
23. 1.550 km W of Adak, AlaskaSun, Aug 22, 9:16 PM HADT · 1858 days ago · 126 km deep · 68 km away
24. 3.067 km E of Adak, AlaskaSun, Aug 22, 9:54 PM HADT · 1858 days ago · 71 km deep · 55 km away
25. 1.980 km SE of Adak, AlaskaSun, Aug 22, 10:10 PM HADT · 1858 days ago · 26 km deep · 60 km away
26. 2.055 km WSW of Adak, AlaskaMon, Aug 23, 2:13 AM HADT · 1858 days ago · 75 km deep · 67 km away
27. 1.657 km ENE of Adak, AlaskaMon, Aug 23, 12:08 PM HADT · 1858 days ago · 175 km deep · 57 km away
28. 1.645 km E of Adak, AlaskaMon, Aug 23, 6:19 PM HADT · 1857 days ago · 68 km deep · 33 km away
29. 2.938 km SSW of Adak, AlaskaTue, Aug 24, 1:17 AM HADT · 1857 days ago · 39 km deep · 35 km away
30. 2.5Andreanof Islands, Aleutian Islands, AlaskaTue, Aug 24, 6:05 PM HADT · 1856 days ago · 35 km deep · 91 km away
31. 1.696 km ESE of Adak, AlaskaTue, Aug 24, 10:56 PM HADT · 1856 days ago · 26 km deep · 80 km away
32. 2.020 km WSW of Adak, AlaskaWed, Aug 25, 12:04 AM HADT · 1856 days ago · 77 km deep · 35 km away
33. 1.871 km E of Adak, AlaskaWed, Aug 25, 10:38 AM HADT · 1856 days ago · 149 km deep · 60 km away
34. 1.675 km SE of Adak, AlaskaWed, Aug 25, 11:19 AM HADT · 1856 days ago · 18 km deep · 55 km away
35. 3.668 km ESE of Adak, AlaskaWed, Aug 25, 5:07 PM HADT · 1855 days ago · 35 km deep · 49 km away
36. 1.829 km SSE of Adak, AlaskaWed, Aug 25, 8:39 PM HADT · 1855 days ago · 45 km deep · 10 km away
37. 1.662 km SE of Adak, AlaskaThu, Aug 26, 3:12 AM HADT · 1855 days ago · 26 km deep · 41 km away
38. 1.6Andreanof Islands, Aleutian Islands, AlaskaThu, Aug 26, 4:49 AM HADT · 1855 days ago · 15 km deep · 73 km away
39. 1.665 km SSW of Adak, AlaskaThu, Aug 26, 9:09 AM HADT · 1855 days ago · 48 km deep · 62 km away
40. 2.062 km SSW of Adak, AlaskaThu, Aug 26, 10:26 AM HADT · 1855 days ago · 29 km deep · 58 km away
41. 1.773 km WSW of Atka, AlaskaThu, Aug 26, 10:45 AM HADT · 1855 days ago · 73 km deep · 89 km away
42. 1.796 km ESE of Adak, AlaskaThu, Aug 26, 3:50 PM HADT · 1854 days ago · 29 km deep · 80 km away
43. 1.543 km SW of Adak, AlaskaFri, Aug 27, 11:02 AM HADT · 1854 days ago · 64 km deep · 47 km away
44. 1.559 km W of Adak, AlaskaFri, Aug 27, 6:10 PM HADT · 1853 days ago · 7 km deep · 72 km away
45. 1.559 km W of Adak, AlaskaFri, Aug 27, 7:15 PM HADT · 1853 days ago · 12 km deep · 73 km away
46. 3.534 km S of Adak, AlaskaSat, Aug 28, 7:12 AM HADT · 1853 days ago · 46 km deep · 20 km away
47. 2.687 km WSW of Adak, AlaskaSat, Aug 28, 9:57 AM HADT · 1853 days ago · 33 km deep · 93 km away
48. 2.683 km SW of Adak, AlaskaSat, Aug 28, 12:01 PM HADT · 1853 days ago · 33 km deep · 87 km away
49. 1.942 km NE of Adak, AlaskaSat, Aug 28, 1:34 PM HADT · 1853 days ago · 189 km deep · 49 km away
50. 1.8Andreanof Islands, Aleutian Islands, AlaskaSat, Aug 28, 1:38 PM HADT · 1853 days ago · 13 km deep · 72 km away
51. 1.689 km SE of Adak, AlaskaSat, Aug 28, 2:52 PM HADT · 1852 days ago · 26 km deep · 69 km away
52. 1.578 km W of Atka, AlaskaSat, Aug 28, 7:16 PM HADT · 1852 days ago · 110 km deep · 86 km away
53. 1.758 km SSE of Adak, AlaskaSat, Aug 28, 10:08 PM HADT · 1852 days ago · 24 km deep · 39 km away
54. 1.759 km W of Adak, AlaskaSun, Aug 29, 2:12 AM HADT · 1852 days ago · 7 km deep · 72 km away
55. 1.772 km WSW of Atka, AlaskaSun, Aug 29, 11:45 AM HADT · 1852 days ago · 122 km deep · 90 km away
56. 1.658 km SE of Adak, AlaskaSun, Aug 29, 1:04 PM HADT · 1852 days ago · 33 km deep · 38 km away
57. 1.846 km NNW of Adak, AlaskaSun, Aug 29, 5:06 PM HADT · 1851 days ago · 138 km deep · 67 km away
58. 1.748 km E of Adak, AlaskaMon, Aug 30, 8:38 AM HADT · 1851 days ago · 149 km deep · 37 km away
59. 2.717 km SE of Adak, AlaskaMon, Aug 30, 2:52 PM HADT · 1850 days ago · 112 km deep · 4 km away
60. 3.684 km E of Adak, AlaskaMon, Aug 30, 9:28 PM HADT · 1850 days ago · 64 km deep · 71 km away

The first 60 of 150.

Before

1. 2.9Andreanof Islands, Aleutian Islands, AlaskaFri, Aug 13, 2:37 PM HADT · 1867 days ago · 33 km deep · 30 km away
2. 3.142 km S of Adak, AlaskaFri, Aug 13, 8:38 AM HADT · 1868 days ago · 69 km deep · 27 km away
3. 1.644 km SW of Adak, AlaskaFri, Aug 13, 5:03 AM HADT · 1868 days ago · 28 km deep · 45 km away
4. 1.574 km E of Adak, AlaskaThu, Aug 12, 12:57 PM HADT · 1869 days ago · 22 km deep · 61 km away
5. 1.741 km ENE of Adak, AlaskaThu, Aug 12, 10:06 AM HADT · 1869 days ago · 6 km deep · 43 km away
6. 2.078 km SW of Adak, AlaskaThu, Aug 12, 7:51 AM HADT · 1869 days ago · 24 km deep · 82 km away
7. 3.671 km SSW of Adak, AlaskaWed, Aug 11, 8:25 PM HADT · 1869 days ago · 35 km deep · 66 km away
8. 3.764 km SE of Adak, AlaskaWed, Aug 11, 8:02 AM HADT · 1870 days ago · 35 km deep · 43 km away
9. 1.535 km W of Adak, AlaskaWed, Aug 11, 4:17 AM HADT · 1870 days ago · 93 km deep · 51 km away
10. 1.549 km S of Adak, AlaskaTue, Aug 10, 5:11 PM HADT · 1870 days ago · 48 km deep · 39 km away
11. 1.685 km SW of Atka, AlaskaTue, Aug 10, 1:23 PM HADT · 1871 days ago · 25 km deep · 97 km away
12. 2.744 km SSE of Adak, AlaskaTue, Aug 10, 5:59 AM HADT · 1871 days ago · 35 km deep · 25 km away
13. 3.054 km SE of Adak, AlaskaTue, Aug 10, 3:04 AM HADT · 1871 days ago · 35 km deep · 33 km away
14. 1.774 km SSE of Adak, AlaskaMon, Aug 9, 7:04 PM HADT · 1871 days ago · 25 km deep · 55 km away
15. 1.9Andreanof Islands, Aleutian Islands, AlaskaMon, Aug 9, 5:10 PM HADT · 1871 days ago · 26 km deep · 57 km away
16. 1.682 km WSW of Adak, AlaskaMon, Aug 9, 3:37 PM HADT · 1871 days ago · 25 km deep · 90 km away
17. 1.687 km WSW of Adak, AlaskaMon, Aug 9, 3:16 PM HADT · 1871 days ago · 13 km deep · 92 km away
18. 1.582 km W of Adak, AlaskaMon, Aug 9, 10:35 AM HADT · 1872 days ago · 7 km deep · 96 km away
19. 1.6101 km SSE of Adak, AlaskaSun, Aug 8, 2:34 AM HADT · 1873 days ago · 24 km deep · 81 km away
20. 1.584 km WSW of Adak, AlaskaSat, Aug 7, 9:32 PM HADT · 1873 days ago · 24 km deep · 91 km away

From the USGS Earthquake Hazards Program and its partner networks, event ak021adrp2uj. Read Thu, Sep 24, 2026, 10:09 AM UTC.