M1.7 earthquake 102 km SSW of Adak, Alaska

Magnitude

1.7 (ml), micro

Local time

Sun, Aug 15, 2021, 9:45 PM HADT

UTC

2021-08-16 06:45:02 UTC

Depth

46.5 km (28.9 mi), shallow

Epicenter

51.047° N, 177.279° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Stations used

30

After

1. 1.793 km WSW of Adak, AlaskaMon, Aug 16, 2:35 AM HADT · 1867 days ago · 13 km deep · 66 km away
2. 1.648 km SW of Adak, AlaskaMon, Aug 16, 1:41 PM HADT · 1867 days ago · 42 km deep · 55 km away
3. 2.760 km SW of Adak, AlaskaMon, Aug 16, 8:48 PM HADT · 1867 days ago · 69 km deep · 52 km away
4. 2.1128 km SW of Adak, AlaskaTue, Aug 17, 2:13 PM HADT · 1866 days ago · 26 km deep · 58 km away
5. 1.514 km SSE of Adak, AlaskaWed, Aug 18, 2:44 AM HADT · 1865 days ago · 80 km deep · 95 km away
6. 1.956 km W of Adak, AlaskaWed, Aug 18, 3:50 AM HADT · 1865 days ago · 92 km deep · 86 km away
7. 2.5135 km WSW of Adak, AlaskaWed, Aug 18, 11:12 AM HADT · 1865 days ago · 35 km deep · 74 km away
8. 3.6141 km WSW of Adak, AlaskaWed, Aug 18, 1:26 PM HADT · 1865 days ago · 31 km deep · 85 km away
9. 1.572 km SSE of Adak, AlaskaWed, Aug 18, 10:51 PM HADT · 1865 days ago · 21 km deep · 71 km away
10. 1.5137 km SSW of Adak, AlaskaThu, Aug 19, 2:42 AM HADT · 1864 days ago · 26 km deep · 39 km away
11. 2.9113 km WSW of Adak, AlaskaThu, Aug 19, 11:16 AM HADT · 1864 days ago · 66 km deep · 79 km away
12. 1.7120 km WSW of Adak, AlaskaThu, Aug 19, 5:36 PM HADT · 1864 days ago · 66 km deep · 88 km away
13. 1.9156 km WSW of Adak, AlaskaThu, Aug 19, 10:20 PM HADT · 1864 days ago · 17 km deep · 88 km away
14. 1.668 km SW of Adak, AlaskaSat, Aug 21, 2:56 AM HADT · 1862 days ago · 51 km deep · 46 km away
15. 2.1186 km SSW of Adak, AlaskaSat, Aug 21, 5:40 AM HADT · 1862 days ago · 26 km deep · 85 km away
16. 1.610 km SW of Adak, AlaskaSat, Aug 21, 11:52 AM HADT · 1862 days ago · 81 km deep · 92 km away
17. 3.064 km SSW of Adak, AlaskaSat, Aug 21, 3:02 PM HADT · 1862 days ago · 35 km deep · 38 km away
18. 2.687 km S of Adak, AlaskaSat, Aug 21, 5:28 PM HADT · 1862 days ago · 35 km deep · 29 km away
19. 4.8128 km WSW of Adak, AlaskaSun, Aug 22, 2:45 AM HADT · 1861 days ago · 52 km deep · 83 km away · felt by 1
20. 4.0131 km WSW of Adak, AlaskaSun, Aug 22, 2:46 AM HADT · 1861 days ago · 35 km deep · 77 km away
21. 2.8132 km WSW of Adak, AlaskaSun, Aug 22, 2:47 AM HADT · 1861 days ago · 35 km deep · 79 km away
22. 3.4133 km WSW of Adak, AlaskaSun, Aug 22, 2:50 AM HADT · 1861 days ago · 35 km deep · 77 km away
23. 1.8133 km WSW of Adak, AlaskaSun, Aug 22, 2:53 AM HADT · 1861 days ago · 25 km deep · 76 km away
24. 1.5132 km WSW of Adak, AlaskaSun, Aug 22, 3:05 AM HADT · 1861 days ago · 25 km deep · 76 km away
25. 2.5135 km WSW of Adak, AlaskaSun, Aug 22, 4:32 AM HADT · 1861 days ago · 35 km deep · 76 km away
26. 1.5133 km WSW of Adak, AlaskaSun, Aug 22, 6:17 AM HADT · 1861 days ago · 26 km deep · 76 km away
27. 2.055 km WSW of Adak, AlaskaMon, Aug 23, 2:13 AM HADT · 1860 days ago · 75 km deep · 79 km away
28. 1.7132 km WSW of Adak, AlaskaMon, Aug 23, 10:57 AM HADT · 1860 days ago · 27 km deep · 77 km away
29. 1.8106 km WSW of Adak, AlaskaMon, Aug 23, 2:28 PM HADT · 1860 days ago · 26 km deep · 57 km away
30. 1.5121 km SW of Adak, AlaskaMon, Aug 23, 5:48 PM HADT · 1860 days ago · 25 km deep · 53 km away
31. 2.938 km SSW of Adak, AlaskaTue, Aug 24, 1:17 AM HADT · 1859 days ago · 39 km deep · 64 km away
32. 1.9135 km WSW of Adak, AlaskaTue, Aug 24, 3:05 AM HADT · 1859 days ago · 35 km deep · 79 km away
33. 3.6134 km WSW of Adak, AlaskaTue, Aug 24, 9:33 AM HADT · 1859 days ago · 41 km deep · 78 km away
34. 2.5Andreanof Islands, Aleutian Islands, AlaskaTue, Aug 24, 6:05 PM HADT · 1859 days ago · 35 km deep · 35 km away
35. 2.020 km WSW of Adak, AlaskaWed, Aug 25, 12:04 AM HADT · 1859 days ago · 77 km deep · 90 km away
36. 3.4142 km WSW of Adak, AlaskaWed, Aug 25, 2:08 PM HADT · 1858 days ago · 17 km deep · 94 km away
37. 1.5139 km WSW of Adak, AlaskaWed, Aug 25, 4:36 PM HADT · 1858 days ago · 22 km deep · 99 km away
38. 1.829 km SSE of Adak, AlaskaWed, Aug 25, 8:39 PM HADT · 1858 days ago · 45 km deep · 87 km away
39. 1.6141 km WSW of Adak, AlaskaWed, Aug 25, 9:06 PM HADT · 1858 days ago · 13 km deep · 99 km away
40. 1.662 km SE of Adak, AlaskaThu, Aug 26, 3:12 AM HADT · 1857 days ago · 26 km deep · 92 km away
41. 1.6Andreanof Islands, Aleutian Islands, AlaskaThu, Aug 26, 4:49 AM HADT · 1857 days ago · 15 km deep · 53 km away
42. 1.665 km SSW of Adak, AlaskaThu, Aug 26, 9:09 AM HADT · 1857 days ago · 48 km deep · 37 km away
43. 2.062 km SSW of Adak, AlaskaThu, Aug 26, 10:26 AM HADT · 1857 days ago · 29 km deep · 41 km away
44. 1.543 km SW of Adak, AlaskaFri, Aug 27, 11:02 AM HADT · 1856 days ago · 64 km deep · 63 km away
45. 1.559 km W of Adak, AlaskaFri, Aug 27, 6:10 PM HADT · 1856 days ago · 7 km deep · 84 km away
46. 1.559 km W of Adak, AlaskaFri, Aug 27, 7:15 PM HADT · 1856 days ago · 12 km deep · 86 km away
47. 3.2122 km SW of Adak, AlaskaSat, Aug 28, 1:14 AM HADT · 1855 days ago · 27 km deep · 51 km away
48. 3.534 km S of Adak, AlaskaSat, Aug 28, 7:12 AM HADT · 1855 days ago · 46 km deep · 76 km away
49. 2.687 km WSW of Adak, AlaskaSat, Aug 28, 9:57 AM HADT · 1855 days ago · 33 km deep · 59 km away
50. 2.683 km SW of Adak, AlaskaSat, Aug 28, 12:01 PM HADT · 1855 days ago · 33 km deep · 48 km away
51. 1.8Andreanof Islands, Aleutian Islands, AlaskaSat, Aug 28, 1:38 PM HADT · 1855 days ago · 13 km deep · 87 km away
52. 1.9141 km WSW of Adak, AlaskaSat, Aug 28, 2:03 PM HADT · 1855 days ago · 9 km deep · 99 km away
53. 1.597 km WSW of Adak, AlaskaSat, Aug 28, 2:05 PM HADT · 1855 days ago · 73 km deep · 77 km away
54. 1.758 km SSE of Adak, AlaskaSat, Aug 28, 10:08 PM HADT · 1855 days ago · 24 km deep · 74 km away
55. 1.759 km W of Adak, AlaskaSun, Aug 29, 2:12 AM HADT · 1854 days ago · 7 km deep · 85 km away
56. 1.8145 km WSW of Adak, AlaskaSun, Aug 29, 3:41 AM HADT · 1854 days ago · 23 km deep · 82 km away
57. 2.5141 km WSW of Adak, AlaskaSun, Aug 29, 8:29 PM HADT · 1854 days ago · 30 km deep · 93 km away
58. 1.9111 km WSW of Adak, AlaskaSun, Aug 29, 8:57 PM HADT · 1854 days ago · 13 km deep · 79 km away
59. 2.0183 km S of Adak, AlaskaMon, Aug 30, 7:15 AM HADT · 1853 days ago · 25 km deep · 90 km away
60. 2.717 km SE of Adak, AlaskaMon, Aug 30, 2:52 PM HADT · 1853 days ago · 112 km deep · 95 km away

The first 60 of 147.

Before

1. 2.6101 km SSW of Adak, AlaskaSun, Aug 15, 6:31 PM HADT · 1868 days ago · 24 km deep · 5 km away
2. 1.8134 km SW of Adak, AlaskaSat, Aug 14, 7:50 PM HADT · 1869 days ago · 26 km deep · 63 km away
3. 1.7134 km SW of Adak, AlaskaSat, Aug 14, 7:49 PM HADT · 1869 days ago · 18 km deep · 57 km away
4. 1.7136 km SW of Adak, AlaskaSat, Aug 14, 7:45 PM HADT · 1869 days ago · 26 km deep · 64 km away
5. 1.667 km SSW of Adak, AlaskaSat, Aug 14, 8:38 AM HADT · 1869 days ago · 27 km deep · 35 km away
6. 1.783 km SW of Adak, AlaskaFri, Aug 13, 11:26 PM HADT · 1870 days ago · 30 km deep · 52 km away
7. 1.560 km SE of Adak, AlaskaFri, Aug 13, 5:37 PM HADT · 1870 days ago · 22 km deep · 93 km away
8. 1.539 km SSW of Adak, AlaskaFri, Aug 13, 4:55 PM HADT · 1870 days ago · 12 km deep · 63 km away
9. 1.620 km SE of Adak, AlaskaFri, Aug 13, 3:40 PM HADT · 1870 days ago · 71 km deep · 96 km away
10. 2.9Andreanof Islands, Aleutian Islands, AlaskaFri, Aug 13, 2:37 PM HADT · 1870 days ago · 33 km deep · 80 km away
11. 1.6115 km WSW of Adak, AlaskaFri, Aug 13, 12:13 PM HADT · 1870 days ago · 24 km deep · 70 km away
12. 3.142 km S of Adak, AlaskaFri, Aug 13, 8:38 AM HADT · 1870 days ago · 69 km deep · 72 km away
13. 1.644 km SW of Adak, AlaskaFri, Aug 13, 5:03 AM HADT · 1870 days ago · 28 km deep · 60 km away
14. 1.8121 km WSW of Adak, AlaskaThu, Aug 12, 7:34 PM HADT · 1871 days ago · 8 km deep · 78 km away
15. 2.078 km SW of Adak, AlaskaThu, Aug 12, 7:51 AM HADT · 1871 days ago · 24 km deep · 49 km away
16. 2.1114 km WSW of Adak, AlaskaThu, Aug 12, 6:59 AM HADT · 1871 days ago · 26 km deep · 71 km away
17. 3.671 km SSW of Adak, AlaskaWed, Aug 11, 8:25 PM HADT · 1872 days ago · 35 km deep · 31 km away
18. 1.7111 km WSW of Adak, AlaskaWed, Aug 11, 8:07 PM HADT · 1872 days ago · 13 km deep · 74 km away
19. 1.535 km W of Adak, AlaskaWed, Aug 11, 4:17 AM HADT · 1872 days ago · 93 km deep · 94 km away
20. 1.7100 km SW of Adak, AlaskaTue, Aug 10, 10:49 PM HADT · 1873 days ago · 26 km deep · 35 km away

From the USGS Earthquake Hazards Program and its partner networks, event ak021ah6ddm9. Read Sat, Sep 26, 2026, 9:09 PM UTC.