M1.9 earthquake 79 km SSW of Adak, Alaska

Magnitude

1.9 (ml), micro

Local time

Tue, Aug 31, 2021, 6:19 AM HADT

UTC

2021-08-31 15:19:32 UTC

Depth

27.6 km (17.1 mi), shallow

Epicenter

51.228° N, 177.111° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Stations used

23

After

1. 3.262 km SE of Adak, AlaskaWed, Sep 1, 5:48 PM HADT · 1848 days ago · 26 km deep · 71 km away
2. 1.641 km SSE of Adak, AlaskaWed, Sep 1, 10:42 PM HADT · 1848 days ago · 34 km deep · 63 km away
3. 1.512 km SE of Adak, AlaskaThu, Sep 2, 2:30 AM HADT · 1848 days ago · 153 km deep · 77 km away
4. 1.8147 km S of Adak, AlaskaThu, Sep 2, 2:56 AM HADT · 1848 days ago · 25 km deep · 91 km away
5. 1.558 km SE of Adak, AlaskaThu, Sep 2, 5:10 PM HADT · 1847 days ago · 48 km deep · 82 km away
6. 1.710 km SSE of Adak, AlaskaFri, Sep 3, 2:30 AM HADT · 1847 days ago · 156 km deep · 72 km away
7. 1.5124 km WSW of Adak, AlaskaFri, Sep 3, 6:19 AM HADT · 1847 days ago · 7 km deep · 96 km away
8. 1.992 km SSE of Adak, AlaskaFri, Sep 3, 9:54 AM HADT · 1847 days ago · 14 km deep · 65 km away
9. 1.560 km SE of Adak, AlaskaFri, Sep 3, 7:04 PM HADT · 1846 days ago · 27 km deep · 85 km away
10. 3.0123 km WSW of Adak, AlaskaSat, Sep 4, 3:07 PM HADT · 1845 days ago · 33 km deep · 83 km away
11. 1.8124 km WSW of Adak, AlaskaSat, Sep 4, 6:04 PM HADT · 1845 days ago · 70 km deep · 98 km away
12. 1.933 km ESE of Adak, AlaskaSat, Sep 4, 8:52 PM HADT · 1845 days ago · 61 km deep · 84 km away
13. 1.570 km SSE of Adak, AlaskaSat, Sep 4, 10:36 PM HADT · 1845 days ago · 18 km deep · 61 km away
14. 1.766 km SW of Adak, AlaskaSun, Sep 5, 5:37 PM HADT · 1844 days ago · 74 km deep · 42 km away
15. 3.367 km ESE of Adak, AlaskaMon, Sep 6, 12:23 PM HADT · 1844 days ago · 39 km deep · 97 km away
16. 1.663 km SSE of Adak, AlaskaMon, Sep 6, 11:07 PM HADT · 1843 days ago · 19 km deep · 64 km away
17. 1.7111 km S of Adak, AlaskaTue, Sep 7, 4:40 AM HADT · 1843 days ago · 35 km deep · 41 km away
18. 1.6124 km SW of Adak, AlaskaTue, Sep 7, 6:53 AM HADT · 1843 days ago · 26 km deep · 64 km away
19. 1.962 km SE of Adak, AlaskaTue, Sep 7, 9:12 AM HADT · 1843 days ago · 26 km deep · 76 km away
20. 1.8114 km WSW of Adak, AlaskaTue, Sep 7, 9:55 PM HADT · 1842 days ago · 15 km deep · 80 km away
21. 1.649 km SW of Adak, AlaskaTue, Sep 7, 11:09 PM HADT · 1842 days ago · 44 km deep · 34 km away
22. 2.7105 km SSE of Adak, AlaskaWed, Sep 8, 10:00 AM HADT · 1842 days ago · 10 km deep · 64 km away
23. 2.9126 km SW of Adak, AlaskaThu, Sep 9, 2:23 PM HADT · 1840 days ago · 35 km deep · 66 km away
24. 2.1147 km SW of Adak, AlaskaThu, Sep 9, 2:43 PM HADT · 1840 days ago · 26 km deep · 82 km away
25. 1.5Andreanof Islands, Aleutian Islands, AlaskaThu, Sep 9, 8:27 PM HADT · 1840 days ago · 59 km deep · 52 km away
26. 2.957 km SSE of Adak, AlaskaSun, Sep 12, 5:44 AM HADT · 1838 days ago · 35 km deep · 69 km away
27. 1.782 km W of Adak, AlaskaMon, Sep 13, 3:35 AM HADT · 1837 days ago · 12 km deep · 83 km away
28. 3.692 km SW of Adak, AlaskaMon, Sep 13, 6:44 AM HADT · 1837 days ago · 35 km deep · 43 km away
29. 1.553 km SW of Adak, AlaskaMon, Sep 13, 9:31 AM HADT · 1837 days ago · 46 km deep · 34 km away
30. 1.756 km SE of Adak, AlaskaTue, Sep 14, 6:24 PM HADT · 1835 days ago · 13 km deep · 71 km away
31. 1.660 km SE of Adak, AlaskaTue, Sep 14, 6:47 PM HADT · 1835 days ago · 13 km deep · 72 km away
32. 1.565 km SW of Adak, AlaskaWed, Sep 15, 5:52 PM HADT · 1834 days ago · 23 km deep · 32 km away
33. 2.068 km SW of Adak, AlaskaFri, Sep 17, 12:31 AM HADT · 1833 days ago · 35 km deep · 40 km away
34. 3.224 km SSW of Adak, AlaskaFri, Sep 17, 12:40 PM HADT · 1833 days ago · 77 km deep · 55 km away
35. 2.0114 km WSW of Adak, AlaskaSun, Sep 19, 8:47 AM HADT · 1831 days ago · 48 km deep · 68 km away
36. 1.5114 km WSW of Adak, AlaskaSun, Sep 19, 11:41 AM HADT · 1831 days ago · 14 km deep · 80 km away
37. 1.644 km SSW of Adak, AlaskaSun, Sep 19, 7:25 PM HADT · 1830 days ago · 36 km deep · 37 km away
38. 1.777 km SE of Adak, AlaskaSun, Sep 19, 9:09 PM HADT · 1830 days ago · 23 km deep · 100 km away
39. 1.541 km SSE of Adak, AlaskaMon, Sep 20, 12:42 AM HADT · 1830 days ago · 36 km deep · 63 km away
40. 1.557 km ESE of Adak, AlaskaMon, Sep 20, 12:46 AM HADT · 1830 days ago · 44 km deep · 98 km away
41. 1.688 km SW of Adak, AlaskaMon, Sep 20, 2:38 AM HADT · 1830 days ago · 37 km deep · 39 km away
42. 1.6124 km WSW of Adak, AlaskaMon, Sep 20, 3:25 AM HADT · 1830 days ago · 15 km deep · 85 km away
43. 1.9100 km WSW of Adak, AlaskaMon, Sep 20, 5:19 PM HADT · 1829 days ago · 58 km deep · 60 km away
44. 1.872 km WSW of Adak, AlaskaTue, Sep 21, 3:44 AM HADT · 1829 days ago · 14 km deep · 47 km away
45. 1.896 km SW of Adak, AlaskaWed, Sep 22, 10:24 AM HADT · 1828 days ago · 33 km deep · 51 km away
46. 1.8129 km WSW of Adak, AlaskaWed, Sep 22, 8:38 PM HADT · 1827 days ago · 11 km deep · 98 km away
47. 2.753 km SE of Adak, AlaskaWed, Sep 22, 8:40 PM HADT · 1827 days ago · 35 km deep · 72 km away
48. 1.559 km SE of Adak, AlaskaWed, Sep 22, 10:44 PM HADT · 1827 days ago · 26 km deep · 83 km away
49. 1.762 km SE of Adak, AlaskaThu, Sep 23, 1:35 AM HADT · 1827 days ago · 43 km deep · 86 km away
50. 1.788 km WSW of Adak, AlaskaThu, Sep 23, 4:09 AM HADT · 1827 days ago · 60 km deep · 57 km away
51. 1.579 km S of Adak, AlaskaThu, Sep 23, 7:08 AM HADT · 1827 days ago · 26 km deep · 46 km away
52. 3.1121 km WSW of Adak, AlaskaThu, Sep 23, 3:00 PM HADT · 1826 days ago · 78 km deep · 97 km away
53. 1.692 km WSW of Adak, AlaskaFri, Sep 24, 1:02 AM HADT · 1826 days ago · 13 km deep · 56 km away
54. 2.032 km E of Adak, AlaskaFri, Sep 24, 3:37 AM HADT · 1826 days ago · 75 km deep · 97 km away
55. 1.619 km SSW of Adak, AlaskaFri, Sep 24, 8:25 AM HADT · 1826 days ago · 75 km deep · 60 km away
56. 1.543 km S of Adak, AlaskaFri, Sep 24, 1:58 PM HADT · 1825 days ago · 43 km deep · 43 km away
57. 2.1110 km SW of Adak, AlaskaSat, Sep 25, 5:21 PM HADT · 1824 days ago · 26 km deep · 49 km away
58. 2.861 km SE of Adak, AlaskaSun, Sep 26, 10:39 PM HADT · 1823 days ago · 35 km deep · 73 km away
59. 3.9177 km SSW of Adak, AlaskaMon, Sep 27, 1:03 PM HADT · 1822 days ago · 10 km deep · 99 km away
60. 1.653 km SE of Adak, AlaskaMon, Sep 27, 2:21 PM HADT · 1822 days ago · 32 km deep · 82 km away

The first 60 of 127.

Before

1. 2.717 km SE of Adak, AlaskaMon, Aug 30, 2:52 PM HADT · 1850 days ago · 112 km deep · 72 km away
2. 1.9111 km WSW of Adak, AlaskaSun, Aug 29, 8:57 PM HADT · 1851 days ago · 13 km deep · 78 km away
3. 2.5141 km WSW of Adak, AlaskaSun, Aug 29, 8:29 PM HADT · 1851 days ago · 30 km deep · 98 km away
4. 1.658 km SE of Adak, AlaskaSun, Aug 29, 1:04 PM HADT · 1851 days ago · 33 km deep · 84 km away
5. 1.8145 km WSW of Adak, AlaskaSun, Aug 29, 3:41 AM HADT · 1852 days ago · 23 km deep · 92 km away
6. 1.759 km W of Adak, AlaskaSun, Aug 29, 2:12 AM HADT · 1852 days ago · 7 km deep · 69 km away
7. 1.758 km SSE of Adak, AlaskaSat, Aug 28, 10:08 PM HADT · 1852 days ago · 24 km deep · 55 km away
8. 1.597 km WSW of Adak, AlaskaSat, Aug 28, 2:05 PM HADT · 1852 days ago · 73 km deep · 72 km away
9. 1.8Andreanof Islands, Aleutian Islands, AlaskaSat, Aug 28, 1:38 PM HADT · 1852 days ago · 13 km deep · 70 km away
10. 2.683 km SW of Adak, AlaskaSat, Aug 28, 12:01 PM HADT · 1853 days ago · 33 km deep · 41 km away
11. 2.687 km WSW of Adak, AlaskaSat, Aug 28, 9:57 AM HADT · 1853 days ago · 33 km deep · 52 km away
12. 3.534 km S of Adak, AlaskaSat, Aug 28, 7:12 AM HADT · 1853 days ago · 46 km deep · 53 km away
13. 3.2122 km SW of Adak, AlaskaSat, Aug 28, 1:14 AM HADT · 1853 days ago · 27 km deep · 61 km away
14. 1.559 km W of Adak, AlaskaFri, Aug 27, 7:15 PM HADT · 1853 days ago · 12 km deep · 70 km away
15. 1.559 km W of Adak, AlaskaFri, Aug 27, 6:10 PM HADT · 1853 days ago · 7 km deep · 68 km away
16. 1.543 km SW of Adak, AlaskaFri, Aug 27, 11:02 AM HADT · 1854 days ago · 64 km deep · 41 km away
17. 2.062 km SSW of Adak, AlaskaThu, Aug 26, 10:26 AM HADT · 1855 days ago · 29 km deep · 18 km away
18. 1.665 km SSW of Adak, AlaskaThu, Aug 26, 9:09 AM HADT · 1855 days ago · 48 km deep · 16 km away
19. 1.6Andreanof Islands, Aleutian Islands, AlaskaThu, Aug 26, 4:49 AM HADT · 1855 days ago · 15 km deep · 44 km away
20. 1.662 km SE of Adak, AlaskaThu, Aug 26, 3:12 AM HADT · 1855 days ago · 26 km deep · 74 km away

From the USGS Earthquake Hazards Program and its partner networks, event ak021b64mz6x. Read Thu, Sep 24, 2026, 9:11 AM UTC.