M1.6 earthquake 117 km WSW of Adak, Alaska

Magnitude

1.6 (ml), micro

Local time

Sat, Jul 31, 2021, 3:42 PM HADT

UTC

2021-08-01 00:42:54 UTC

Depth

47.2 km (29.3 mi), shallow

Epicenter

51.453° N, 178.195° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Stations used

29

After

1. 1.638 km SW of Adak, AlaskaSat, Jul 31, 5:16 PM HADT · 1884 days ago · 27 km deep · 83 km away
2. 1.773 km W of Adak, AlaskaSun, Aug 1, 7:21 AM HADT · 1883 days ago · 73 km deep · 49 km away
3. 4.0123 km WSW of Adak, AlaskaSun, Aug 1, 8:28 AM HADT · 1883 days ago · 47 km deep · 14 km away
4. 1.8159 km WSW of Adak, AlaskaSun, Aug 1, 7:35 PM HADT · 1882 days ago · 25 km deep · 43 km away
5. 1.560 km SSW of Adak, AlaskaMon, Aug 2, 11:41 AM HADT · 1882 days ago · 36 km deep · 79 km away
6. 1.669 km WSW of Adak, AlaskaMon, Aug 2, 2:12 PM HADT · 1882 days ago · 71 km deep · 50 km away
7. 1.582 km WSW of Adak, AlaskaMon, Aug 2, 4:44 PM HADT · 1882 days ago · 38 km deep · 38 km away
8. 2.1133 km W of Adak, AlaskaMon, Aug 2, 6:36 PM HADT · 1881 days ago · 139 km deep · 57 km away
9. 1.546 km WSW of Adak, AlaskaMon, Aug 2, 11:43 PM HADT · 1881 days ago · 75 km deep · 71 km away
10. 1.6Andreanof Islands, Aleutian Islands, AlaskaTue, Aug 3, 6:33 AM HADT · 1881 days ago · 13 km deep · 1 km away
11. 1.694 km SW of Adak, AlaskaTue, Aug 3, 11:09 AM HADT · 1881 days ago · 23 km deep · 52 km away
12. 1.982 km W of Adak, AlaskaTue, Aug 3, 1:00 PM HADT · 1881 days ago · 7 km deep · 51 km away
13. 1.6117 km WSW of Adak, AlaskaTue, Aug 3, 7:12 PM HADT · 1880 days ago · 45 km deep · 2 km away
14. 1.677 km SW of Adak, AlaskaWed, Aug 4, 2:09 AM HADT · 1880 days ago · 29 km deep · 45 km away
15. 3.4142 km WSW of Adak, AlaskaWed, Aug 4, 10:03 AM HADT · 1880 days ago · 32 km deep · 28 km away
16. 1.9122 km WSW of Adak, AlaskaWed, Aug 4, 10:05 PM HADT · 1879 days ago · 25 km deep · 6 km away
17. 2.0137 km SW of Adak, AlaskaThu, Aug 5, 8:52 AM HADT · 1879 days ago · 26 km deep · 39 km away
18. 1.8131 km SW of Adak, AlaskaThu, Aug 5, 9:25 AM HADT · 1879 days ago · 26 km deep · 32 km away
19. 2.068 km W of Adak, AlaskaFri, Aug 6, 1:21 AM HADT · 1878 days ago · 73 km deep · 53 km away
20. 2.874 km SW of Adak, AlaskaFri, Aug 6, 3:28 AM HADT · 1878 days ago · 61 km deep · 56 km away
21. 1.545 km SSW of Adak, AlaskaFri, Aug 6, 4:31 PM HADT · 1878 days ago · 63 km deep · 86 km away
22. 2.0204 km WSW of Adak, AlaskaSat, Aug 7, 10:29 AM HADT · 1877 days ago · 70 km deep · 93 km away
23. 1.889 km SW of Adak, AlaskaSat, Aug 7, 10:36 AM HADT · 1877 days ago · 33 km deep · 35 km away
24. 1.646 km SW of Adak, AlaskaSat, Aug 7, 3:11 PM HADT · 1877 days ago · 48 km deep · 77 km away
25. 1.9Andreanof Islands, Aleutian Islands, AlaskaSat, Aug 7, 6:29 PM HADT · 1876 days ago · 13 km deep · 100 km away
26. 3.6127 km WSW of Adak, AlaskaSat, Aug 7, 8:41 PM HADT · 1876 days ago · 35 km deep · 19 km away
27. 1.684 km WSW of Adak, AlaskaSat, Aug 7, 9:09 PM HADT · 1876 days ago · 13 km deep · 35 km away
28. 1.584 km WSW of Adak, AlaskaSat, Aug 7, 9:32 PM HADT · 1876 days ago · 24 km deep · 34 km away
29. 1.582 km W of Adak, AlaskaMon, Aug 9, 10:35 AM HADT · 1875 days ago · 7 km deep · 50 km away
30. 1.687 km WSW of Adak, AlaskaMon, Aug 9, 3:16 PM HADT · 1875 days ago · 13 km deep · 33 km away
31. 1.682 km WSW of Adak, AlaskaMon, Aug 9, 3:37 PM HADT · 1875 days ago · 25 km deep · 35 km away
32. 1.9Andreanof Islands, Aleutian Islands, AlaskaMon, Aug 9, 5:10 PM HADT · 1875 days ago · 26 km deep · 78 km away
33. 1.549 km S of Adak, AlaskaTue, Aug 10, 5:11 PM HADT · 1874 days ago · 48 km deep · 100 km away
34. 1.7184 km W of Adak, AlaskaTue, Aug 10, 6:35 PM HADT · 1873 days ago · 139 km deep · 87 km away
35. 1.7100 km SW of Adak, AlaskaTue, Aug 10, 10:49 PM HADT · 1873 days ago · 26 km deep · 43 km away
36. 1.535 km W of Adak, AlaskaWed, Aug 11, 4:17 AM HADT · 1873 days ago · 93 km deep · 87 km away
37. 1.6206 km WSW of Adak, AlaskaWed, Aug 11, 5:16 AM HADT · 1873 days ago · 47 km deep · 91 km away
38. 1.7111 km WSW of Adak, AlaskaWed, Aug 11, 8:07 PM HADT · 1872 days ago · 13 km deep · 6 km away
39. 3.671 km SSW of Adak, AlaskaWed, Aug 11, 8:25 PM HADT · 1872 days ago · 35 km deep · 76 km away
40. 2.1114 km WSW of Adak, AlaskaThu, Aug 12, 6:59 AM HADT · 1872 days ago · 26 km deep · 7 km away
41. 2.078 km SW of Adak, AlaskaThu, Aug 12, 7:51 AM HADT · 1872 days ago · 24 km deep · 45 km away
42. 1.7176 km WSW of Adak, AlaskaThu, Aug 12, 3:03 PM HADT · 1872 days ago · 17 km deep · 60 km away
43. 1.8121 km WSW of Adak, AlaskaThu, Aug 12, 7:34 PM HADT · 1871 days ago · 8 km deep · 4 km away
44. 1.644 km SW of Adak, AlaskaFri, Aug 13, 5:03 AM HADT · 1871 days ago · 28 km deep · 82 km away
45. 1.5129 km WSW of Adak, AlaskaFri, Aug 13, 5:33 AM HADT · 1871 days ago · 7 km deep · 27 km away
46. 1.6115 km WSW of Adak, AlaskaFri, Aug 13, 12:13 PM HADT · 1871 days ago · 24 km deep · 9 km away
47. 1.539 km SSW of Adak, AlaskaFri, Aug 13, 4:55 PM HADT · 1871 days ago · 12 km deep · 87 km away
48. 1.7150 km W of Adak, AlaskaFri, Aug 13, 11:14 PM HADT · 1870 days ago · 4 km deep · 57 km away
49. 1.783 km SW of Adak, AlaskaFri, Aug 13, 11:26 PM HADT · 1870 days ago · 30 km deep · 38 km away
50. 1.7199 km WSW of Adak, AlaskaSat, Aug 14, 12:46 AM HADT · 1870 days ago · 26 km deep · 82 km away
51. 1.6133 km WSW of Adak, AlaskaSat, Aug 14, 1:10 AM HADT · 1870 days ago · 7 km deep · 30 km away
52. 2.8205 km WSW of Adak, AlaskaSat, Aug 14, 2:26 AM HADT · 1870 days ago · 33 km deep · 88 km away
53. 1.667 km SSW of Adak, AlaskaSat, Aug 14, 8:38 AM HADT · 1870 days ago · 27 km deep · 80 km away
54. 1.7136 km SW of Adak, AlaskaSat, Aug 14, 7:45 PM HADT · 1869 days ago · 26 km deep · 37 km away
55. 1.7134 km SW of Adak, AlaskaSat, Aug 14, 7:49 PM HADT · 1869 days ago · 18 km deep · 42 km away
56. 1.8134 km SW of Adak, AlaskaSat, Aug 14, 7:50 PM HADT · 1869 days ago · 26 km deep · 36 km away
57. 3.1216 km WSW of Adak, AlaskaSun, Aug 15, 7:04 AM HADT · 1869 days ago · 12 km deep · 99 km away
58. 2.6101 km SSW of Adak, AlaskaSun, Aug 15, 6:31 PM HADT · 1868 days ago · 24 km deep · 83 km away
59. 1.7102 km SSW of Adak, AlaskaSun, Aug 15, 9:45 PM HADT · 1868 days ago · 47 km deep · 78 km away
60. 1.793 km WSW of Adak, AlaskaMon, Aug 16, 2:35 AM HADT · 1868 days ago · 13 km deep · 24 km away

The first 60 of 195.

Before

1. 1.8Andreanof Islands, Aleutian Islands, AlaskaSat, Jul 31, 6:02 AM HADT · 1884 days ago · 18 km deep · 38 km away
2. 1.568 km SSW of Adak, AlaskaFri, Jul 30, 9:05 AM HADT · 1885 days ago · 42 km deep · 76 km away
3. 1.8148 km WSW of Adak, AlaskaFri, Jul 30, 4:30 AM HADT · 1885 days ago · 24 km deep · 37 km away
4. 1.767 km W of Adak, AlaskaThu, Jul 29, 2:09 PM HADT · 1886 days ago · 93 km deep · 59 km away
5. 1.781 km SW of Adak, AlaskaThu, Jul 29, 1:29 AM HADT · 1886 days ago · 25 km deep · 50 km away
6. 1.550 km WSW of Adak, AlaskaThu, Jul 29, 12:25 AM HADT · 1886 days ago · 74 km deep · 68 km away
7. 1.897 km WSW of Adak, AlaskaWed, Jul 28, 10:15 PM HADT · 1886 days ago · 62 km deep · 21 km away
8. 1.5131 km WSW of Adak, AlaskaWed, Jul 28, 8:23 PM HADT · 1886 days ago · 26 km deep · 14 km away
9. 3.044 km SSW of Adak, AlaskaWed, Jul 28, 5:06 PM HADT · 1887 days ago · 70 km deep · 89 km away
10. 2.7123 km WSW of Adak, AlaskaWed, Jul 28, 11:30 AM HADT · 1887 days ago · 29 km deep · 10 km away
11. 1.7117 km WSW of Adak, AlaskaWed, Jul 28, 11:12 AM HADT · 1887 days ago · 38 km deep · 9 km away
12. 4.0Andreanof Islands, Aleutian Islands, AlaskaWed, Jul 28, 8:31 AM HADT · 1887 days ago · 38 km deep · 27 km away
13. 1.8183 km WSW of Adak, AlaskaTue, Jul 27, 2:17 AM HADT · 1888 days ago · 20 km deep · 67 km away
14. 2.7141 km SW of Adak, AlaskaMon, Jul 26, 9:44 PM HADT · 1888 days ago · 35 km deep · 36 km away
15. 1.6145 km WSW of Adak, AlaskaMon, Jul 26, 6:15 PM HADT · 1888 days ago · 69 km deep · 33 km away
16. 2.045 km WSW of Adak, AlaskaMon, Jul 26, 12:50 PM HADT · 1889 days ago · 70 km deep · 73 km away
17. 1.966 km WSW of Adak, AlaskaMon, Jul 26, 9:47 AM HADT · 1889 days ago · 75 km deep · 53 km away
18. 1.687 km WSW of Adak, AlaskaSun, Jul 25, 8:33 PM HADT · 1889 days ago · 62 km deep · 32 km away
19. 1.6158 km WSW of Adak, AlaskaSun, Jul 25, 1:39 PM HADT · 1890 days ago · 56 km deep · 43 km away
20. 2.063 km WSW of Adak, AlaskaSat, Jul 24, 3:27 PM HADT · 1891 days ago · 65 km deep · 54 km away

From the USGS Earthquake Hazards Program and its partner networks, event ak0219s9q1f3. Read Sun, Sep 27, 2026, 2:16 PM UTC.