M1.5 earthquake 73 km WSW of Atka, Alaska

Magnitude

1.5 (ml), micro

Local time

Wed, Aug 18, 2021, 12:02 PM HADT

UTC

2021-08-18 21:02:17 UTC

Depth

63.8 km (39.6 mi), shallow

Epicenter

51.926° N, 175.177° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Stations used

16

After

1. 2.053 km ENE of Adak, AlaskaThu, Aug 19, 3:58 AM HADT · 1862 days ago · 146 km deep · 52 km away
2. 1.863 km W of Atka, AlaskaThu, Aug 19, 10:05 AM HADT · 1862 days ago · 170 km deep · 33 km away
3. 3.227 km E of Atka, AlaskaThu, Aug 19, 1:16 PM HADT · 1861 days ago · 19 km deep · 100 km away
4. 3.464 km SE of Adak, AlaskaThu, Aug 19, 2:20 PM HADT · 1861 days ago · 35 km deep · 74 km away
5. 2.829 km NNE of Atka, AlaskaThu, Aug 19, 2:51 PM HADT · 1861 days ago · 217 km deep · 95 km away
6. 1.742 km SW of Atka, AlaskaSat, Aug 21, 3:05 AM HADT · 1860 days ago · 53 km deep · 39 km away
7. 2.853 km SSE of Atka, AlaskaSat, Aug 21, 4:18 AM HADT · 1860 days ago · 35 km deep · 91 km away
8. 2.059 km SSE of Atka, AlaskaSat, Aug 21, 8:00 AM HADT · 1860 days ago · 15 km deep · 97 km away
9. 3.2Andreanof Islands, Aleutian Islands, AlaskaSat, Aug 21, 4:15 PM HADT · 1859 days ago · 35 km deep · 46 km away
10. 1.921 km SW of Atka, AlaskaSun, Aug 22, 12:28 AM HADT · 1859 days ago · 9 km deep · 54 km away
11. 1.915 km NE of Adak, AlaskaSun, Aug 22, 3:16 AM HADT · 1859 days ago · 151 km deep · 89 km away
12. 1.664 km ENE of Adak, AlaskaSun, Aug 22, 3:51 AM HADT · 1859 days ago · 12 km deep · 44 km away
13. 2.318 km N of Atka, AlaskaSun, Aug 22, 4:59 AM HADT · 1859 days ago · 146 km deep · 85 km away
14. 3.067 km E of Adak, AlaskaSun, Aug 22, 9:54 PM HADT · 1858 days ago · 71 km deep · 34 km away
15. 1.980 km SE of Adak, AlaskaSun, Aug 22, 10:10 PM HADT · 1858 days ago · 26 km deep · 67 km away
16. 1.934 km SSW of Atka, AlaskaSun, Aug 22, 10:38 PM HADT · 1858 days ago · 71 km deep · 49 km away
17. 1.657 km ENE of Adak, AlaskaMon, Aug 23, 12:08 PM HADT · 1857 days ago · 175 km deep · 54 km away
18. 1.529 km ESE of Atka, AlaskaMon, Aug 23, 3:36 PM HADT · 1857 days ago · 36 km deep · 97 km away
19. 1.74 km NNE of Atka, AlaskaMon, Aug 23, 3:50 PM HADT · 1857 days ago · 129 km deep · 77 km away
20. 1.645 km E of Adak, AlaskaMon, Aug 23, 6:19 PM HADT · 1857 days ago · 68 km deep · 56 km away
21. 1.696 km ESE of Adak, AlaskaTue, Aug 24, 10:56 PM HADT · 1856 days ago · 26 km deep · 33 km away
22. 2.8Andreanof Islands, Aleutian Islands, AlaskaWed, Aug 25, 12:10 AM HADT · 1856 days ago · 219 km deep · 49 km away
23. 1.871 km E of Adak, AlaskaWed, Aug 25, 10:38 AM HADT · 1856 days ago · 149 km deep · 29 km away
24. 1.675 km SE of Adak, AlaskaWed, Aug 25, 11:19 AM HADT · 1855 days ago · 18 km deep · 69 km away
25. 3.668 km ESE of Adak, AlaskaWed, Aug 25, 5:07 PM HADT · 1855 days ago · 35 km deep · 58 km away
26. 1.829 km SSE of Adak, AlaskaWed, Aug 25, 8:39 PM HADT · 1855 days ago · 45 km deep · 93 km away
27. 1.662 km SE of Adak, AlaskaThu, Aug 26, 3:12 AM HADT · 1855 days ago · 26 km deep · 85 km away
28. 1.773 km WSW of Atka, AlaskaThu, Aug 26, 10:45 AM HADT · 1854 days ago · 73 km deep · 8 km away
29. 1.796 km ESE of Adak, AlaskaThu, Aug 26, 3:50 PM HADT · 1854 days ago · 29 km deep · 36 km away
30. 1.661 km SSE of Atka, AlaskaSat, Aug 28, 4:49 AM HADT · 1853 days ago · 25 km deep · 93 km away
31. 1.942 km NE of Adak, AlaskaSat, Aug 28, 1:34 PM HADT · 1852 days ago · 189 km deep · 73 km away
32. 1.689 km SE of Adak, AlaskaSat, Aug 28, 2:52 PM HADT · 1852 days ago · 26 km deep · 66 km away
33. 1.578 km W of Atka, AlaskaSat, Aug 28, 7:16 PM HADT · 1852 days ago · 110 km deep · 21 km away
34. 1.772 km WSW of Atka, AlaskaSun, Aug 29, 11:45 AM HADT · 1851 days ago · 122 km deep · 15 km away
35. 1.658 km SE of Adak, AlaskaSun, Aug 29, 1:04 PM HADT · 1851 days ago · 33 km deep · 72 km away
36. 1.748 km E of Adak, AlaskaMon, Aug 30, 8:38 AM HADT · 1851 days ago · 149 km deep · 53 km away
37. 2.717 km SE of Adak, AlaskaMon, Aug 30, 2:52 PM HADT · 1850 days ago · 112 km deep · 93 km away
38. 3.684 km E of Adak, AlaskaMon, Aug 30, 9:28 PM HADT · 1850 days ago · 64 km deep · 20 km away
39. 1.676 km ESE of Adak, AlaskaTue, Aug 31, 12:26 AM HADT · 1850 days ago · 19 km deep · 33 km away
40. 3.246 km ENE of Adak, AlaskaWed, Sep 1, 12:46 PM HADT · 1848 days ago · 137 km deep · 59 km away
41. 3.262 km SE of Adak, AlaskaWed, Sep 1, 5:48 PM HADT · 1848 days ago · 26 km deep · 87 km away
42. 2.958 km E of Adak, AlaskaWed, Sep 1, 7:01 PM HADT · 1848 days ago · 156 km deep · 43 km away
43. 1.641 km SSE of Adak, AlaskaWed, Sep 1, 10:42 PM HADT · 1848 days ago · 34 km deep · 92 km away
44. 1.652 km ENE of Adak, AlaskaWed, Sep 1, 10:54 PM HADT · 1848 days ago · 148 km deep · 51 km away
45. 1.512 km SE of Adak, AlaskaThu, Sep 2, 2:30 AM HADT · 1848 days ago · 153 km deep · 91 km away
46. 1.558 km SE of Adak, AlaskaThu, Sep 2, 5:10 PM HADT · 1847 days ago · 48 km deep · 74 km away
47. 1.753 km SSE of Atka, AlaskaThu, Sep 2, 11:20 PM HADT · 1847 days ago · 35 km deep · 95 km away
48. 2.018 km W of Atka, AlaskaFri, Sep 3, 1:37 AM HADT · 1847 days ago · 170 km deep · 56 km away
49. 1.710 km SSE of Adak, AlaskaFri, Sep 3, 2:30 AM HADT · 1847 days ago · 156 km deep · 98 km away
50. 1.560 km SE of Adak, AlaskaFri, Sep 3, 7:04 PM HADT · 1846 days ago · 27 km deep · 72 km away
51. 2.588 km ESE of Adak, AlaskaSat, Sep 4, 10:10 AM HADT · 1846 days ago · 58 km deep · 28 km away
52. 2.811 km NNE of Atka, AlaskaSat, Sep 4, 8:03 PM HADT · 1845 days ago · 10 km deep · 83 km away
53. 1.933 km ESE of Adak, AlaskaSat, Sep 4, 8:52 PM HADT · 1845 days ago · 61 km deep · 74 km away
54. 1.951 km ENE of Adak, AlaskaSun, Sep 5, 2:05 AM HADT · 1845 days ago · 163 km deep · 56 km away
55. 2.866 km S of Atka, AlaskaSun, Sep 5, 8:48 AM HADT · 1845 days ago · 35 km deep · 67 km away
56. 1.674 km ENE of Adak, AlaskaSun, Sep 5, 9:37 PM HADT · 1844 days ago · 149 km deep · 33 km away
57. 1.561 km W of Atka, AlaskaMon, Sep 6, 7:27 AM HADT · 1844 days ago · 13 km deep · 22 km away
58. 3.367 km ESE of Adak, AlaskaMon, Sep 6, 12:23 PM HADT · 1843 days ago · 39 km deep · 61 km away
59. 1.774 km ENE of Adak, AlaskaMon, Sep 6, 4:41 PM HADT · 1843 days ago · 137 km deep · 33 km away
60. 1.960 km ENE of Adak, AlaskaMon, Sep 6, 5:02 PM HADT · 1843 days ago · 150 km deep · 47 km away

The first 60 of 130.

Before

1. 1.514 km SSE of Adak, AlaskaWed, Aug 18, 2:44 AM HADT · 1863 days ago · 80 km deep · 94 km away
2. 3.038 km SSE of Atka, AlaskaTue, Aug 17, 3:57 AM HADT · 1864 days ago · 67 km deep · 88 km away
3. 3.183 km E of Adak, AlaskaSun, Aug 15, 11:11 PM HADT · 1865 days ago · 73 km deep · 23 km away
4. 1.560 km SE of Adak, AlaskaFri, Aug 13, 5:37 PM HADT · 1867 days ago · 22 km deep · 83 km away
5. 1.620 km SE of Adak, AlaskaFri, Aug 13, 3:40 PM HADT · 1867 days ago · 71 km deep · 90 km away
6. 2.9Andreanof Islands, Aleutian Islands, AlaskaFri, Aug 13, 2:37 PM HADT · 1867 days ago · 33 km deep · 95 km away
7. 1.653 km SSW of Atka, AlaskaThu, Aug 12, 9:20 PM HADT · 1868 days ago · 15 km deep · 55 km away
8. 1.574 km E of Adak, AlaskaThu, Aug 12, 12:57 PM HADT · 1868 days ago · 22 km deep · 30 km away
9. 2.746 km S of Atka, AlaskaThu, Aug 12, 12:40 PM HADT · 1868 days ago · 35 km deep · 78 km away
10. 1.741 km ENE of Adak, AlaskaThu, Aug 12, 10:06 AM HADT · 1869 days ago · 6 km deep · 65 km away
11. 3.028 km WSW of Atka, AlaskaThu, Aug 12, 6:45 AM HADT · 1869 days ago · 71 km deep · 46 km away
12. 1.6116 km SSW of Atka, AlaskaThu, Aug 12, 5:01 AM HADT · 1869 days ago · 19 km deep · 84 km away
13. 2.015 km N of Atka, AlaskaWed, Aug 11, 10:31 AM HADT · 1870 days ago · 4 km deep · 82 km away
14. 1.613 km N of Atka, AlaskaWed, Aug 11, 8:32 AM HADT · 1870 days ago · 5 km deep · 80 km away
15. 3.764 km SE of Adak, AlaskaWed, Aug 11, 8:02 AM HADT · 1870 days ago · 35 km deep · 74 km away
16. 2.315 km N of Atka, AlaskaWed, Aug 11, 12:56 AM HADT · 1870 days ago · 4 km deep · 81 km away
17. 2.114 km N of Atka, AlaskaWed, Aug 11, 12:50 AM HADT · 1870 days ago · 4 km deep · 81 km away
18. 1.513 km N of Atka, AlaskaTue, Aug 10, 8:18 PM HADT · 1870 days ago · 5 km deep · 79 km away
19. 2.014 km N of Atka, AlaskaTue, Aug 10, 6:11 PM HADT · 1870 days ago · 5 km deep · 81 km away
20. 2.114 km N of Atka, AlaskaTue, Aug 10, 5:27 PM HADT · 1870 days ago · 5 km deep · 81 km away

From the USGS Earthquake Hazards Program and its partner networks, event ak021akq4e2e. Read Thu, Sep 24, 2026, 7:09 AM UTC.