M1.6 earthquake 68 km SW of Adak, Alaska

Magnitude

1.6 (ml), micro

Local time

Sat, Dec 11, 2021, 2:45 PM HAST

UTC

2021-12-12 00:45:43 UTC

Depth

35.6 km (22.1 mi), shallow

Epicenter

51.386° N, 177.228° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Stations used

24

After

1. 1.674 km SW of Adak, AlaskaSat, Dec 11, 6:47 PM HAST · 1750 days ago · 36 km deep · 15 km away
2. 2.339 km E of Adak, AlaskaSun, Dec 12, 5:23 PM HAST · 1749 days ago · 127 km deep · 93 km away
3. 2.676 km SSW of Adak, AlaskaMon, Dec 13, 7:30 AM HAST · 1749 days ago · 35 km deep · 15 km away
4. 1.839 km SSE of Adak, AlaskaMon, Dec 13, 11:01 AM HAST · 1749 days ago · 48 km deep · 58 km away
5. 4.089 km SW of Adak, AlaskaMon, Dec 13, 3:15 PM HAST · 1748 days ago · 35 km deep · 25 km away
6. 2.144 km SSE of Adak, AlaskaMon, Dec 13, 5:30 PM HAST · 1748 days ago · 33 km deep · 62 km away
7. 1.865 km SSE of Adak, AlaskaMon, Dec 13, 8:49 PM HAST · 1748 days ago · 26 km deep · 75 km away
8. 1.9133 km WSW of Adak, AlaskaMon, Dec 13, 9:00 PM HAST · 1748 days ago · 13 km deep · 74 km away
9. 1.8146 km WSW of Adak, AlaskaMon, Dec 13, 10:05 PM HAST · 1748 days ago · 24 km deep · 95 km away
10. 1.769 km SW of Adak, AlaskaWed, Dec 15, 4:15 PM HAST · 1746 days ago · 43 km deep · 18 km away
11. 1.978 km WSW of Adak, AlaskaWed, Dec 15, 11:48 PM HAST · 1746 days ago · 73 km deep · 44 km away
12. 1.764 km SSE of Adak, AlaskaThu, Dec 16, 3:46 AM HAST · 1746 days ago · 23 km deep · 70 km away
13. 1.855 km SSE of Adak, AlaskaThu, Dec 16, 4:40 AM HAST · 1746 days ago · 26 km deep · 58 km away
14. 4.029 km SSW of Adak, AlaskaThu, Dec 16, 9:48 AM HAST · 1746 days ago · 71 km deep · 39 km away
15. 2.943 km S of Adak, AlaskaFri, Dec 17, 3:52 PM HAST · 1744 days ago · 35 km deep · 41 km away
16. 2.9108 km WSW of Adak, AlaskaFri, Dec 17, 8:02 PM HAST · 1744 days ago · 48 km deep · 54 km away
17. 3.2101 km SW of Adak, AlaskaSun, Dec 19, 3:07 PM HAST · 1742 days ago · 31 km deep · 33 km away
18. 1.862 km SE of Adak, AlaskaMon, Dec 20, 2:54 AM HAST · 1742 days ago · 24 km deep · 88 km away
19. 1.7134 km WSW of Adak, AlaskaMon, Dec 20, 3:22 AM HAST · 1742 days ago · 28 km deep · 84 km away
20. 1.656 km SE of Adak, AlaskaMon, Dec 20, 3:55 AM HAST · 1742 days ago · 25 km deep · 79 km away
21. 3.4132 km WSW of Adak, AlaskaMon, Dec 20, 4:32 AM HAST · 1742 days ago · 74 km deep · 87 km away
22. 1.761 km SE of Adak, AlaskaMon, Dec 20, 7:27 AM HAST · 1742 days ago · 26 km deep · 87 km away
23. 1.679 km WSW of Adak, AlaskaMon, Dec 20, 10:34 AM HAST · 1742 days ago · 56 km deep · 40 km away
24. 1.953 km S of Adak, AlaskaMon, Dec 20, 8:31 PM HAST · 1741 days ago · 23 km deep · 48 km away
25. 1.951 km S of Adak, AlaskaTue, Dec 21, 10:51 AM HAST · 1741 days ago · 25 km deep · 51 km away
26. 1.777 km WSW of Adak, AlaskaTue, Dec 21, 3:43 PM HAST · 1740 days ago · 26 km deep · 31 km away
27. 2.746 km S of Adak, AlaskaTue, Dec 21, 9:43 PM HAST · 1740 days ago · 52 km deep · 50 km away
28. 1.646 km SSE of Adak, AlaskaWed, Dec 22, 3:48 PM HAST · 1739 days ago · 31 km deep · 63 km away
29. 2.6105 km W of Adak, AlaskaWed, Dec 22, 3:59 PM HAST · 1739 days ago · 90 km deep · 74 km away
30. 1.9128 km WSW of Adak, AlaskaWed, Dec 22, 5:26 PM HAST · 1739 days ago · 13 km deep · 88 km away
31. 1.5124 km WSW of Adak, AlaskaWed, Dec 22, 9:38 PM HAST · 1739 days ago · 24 km deep · 75 km away
32. 1.8114 km WSW of Adak, AlaskaWed, Dec 22, 10:37 PM HAST · 1739 days ago · 50 km deep · 63 km away
33. 2.116 km NNE of Adak, AlaskaWed, Dec 22, 11:27 PM HAST · 1739 days ago · 110 km deep · 84 km away
34. 2.0130 km WSW of Adak, AlaskaThu, Dec 23, 2:51 AM HAST · 1739 days ago · 59 km deep · 80 km away
35. 1.8102 km SW of Adak, AlaskaThu, Dec 23, 3:17 AM HAST · 1739 days ago · 25 km deep · 36 km away
36. 2.020 km SSE of Adak, AlaskaFri, Dec 24, 2:11 AM HAST · 1738 days ago · 62 km deep · 59 km away
37. 2.156 km SE of Adak, AlaskaFri, Dec 24, 10:59 AM HAST · 1738 days ago · 26 km deep · 78 km away
38. 1.8134 km WSW of Adak, AlaskaSat, Dec 25, 3:45 AM HAST · 1737 days ago · 24 km deep · 80 km away
39. 1.550 km SW of Adak, AlaskaSat, Dec 25, 4:13 AM HAST · 1737 days ago · 16 km deep · 23 km away
40. 1.9101 km SW of Adak, AlaskaSat, Dec 25, 7:06 PM HAST · 1736 days ago · 29 km deep · 40 km away
41. 2.780 km SE of Adak, AlaskaSat, Dec 25, 7:57 PM HAST · 1736 days ago · 35 km deep · 96 km away
42. 1.753 km SE of Adak, AlaskaSun, Dec 26, 11:16 AM HAST · 1736 days ago · 28 km deep · 72 km away
43. 1.9127 km WSW of Adak, AlaskaMon, Dec 27, 10:28 AM HAST · 1735 days ago · 25 km deep · 77 km away
44. 2.074 km WSW of Adak, AlaskaMon, Dec 27, 10:43 AM HAST · 1735 days ago · 58 km deep · 28 km away
45. 1.852 km SW of Adak, AlaskaTue, Dec 28, 12:51 AM HAST · 1734 days ago · 35 km deep · 16 km away
46. 3.1155 km WSW of Adak, AlaskaWed, Dec 29, 1:28 AM HAST · 1733 days ago · 34 km deep · 100 km away
47. 1.9141 km SW of Adak, AlaskaWed, Dec 29, 3:55 AM HAST · 1733 days ago · 20 km deep · 77 km away
48. 2.022 km ENE of Adak, AlaskaWed, Dec 29, 7:26 AM HAST · 1733 days ago · 142 km deep · 90 km away
49. 3.461 km SSE of Adak, AlaskaWed, Dec 29, 4:01 PM HAST · 1732 days ago · 35 km deep · 68 km away
50. 3.257 km SSE of Adak, AlaskaWed, Dec 29, 4:03 PM HAST · 1732 days ago · 35 km deep · 67 km away
51. 2.777 km SSW of Adak, AlaskaFri, Dec 31, 11:45 AM HAST · 1731 days ago · 35 km deep · 23 km away
52. 2.190 km WSW of Adak, AlaskaFri, Dec 31, 1:10 PM HAST · 1731 days ago · 39 km deep · 39 km away
53. 2.3147 km S of Adak, AlaskaFri, Dec 31, 3:52 PM HAST · 1730 days ago · 26 km deep · 96 km away
54. 1.859 km SSE of Adak, AlaskaSat, Jan 1, 5:14 AM HAST · 1730 days ago · 14 km deep · 74 km away
55. 1.6Andreanof Islands, Aleutian Islands, AlaskaSat, Jan 1, 5:37 AM HAST · 1730 days ago · 25 km deep · 74 km away
56. 2.8123 km SW of Adak, AlaskaSat, Jan 1, 8:26 AM HAST · 1730 days ago · 35 km deep · 58 km away
57. 2.664 km S of Adak, AlaskaSun, Jan 2, 3:21 AM HAST · 1729 days ago · 35 km deep · 33 km away
58. 2.16 km ENE of Adak, AlaskaSun, Jan 2, 7:46 PM HAST · 1728 days ago · 7 km deep · 74 km away
59. 3.5134 km SW of Adak, AlaskaSun, Jan 2, 7:54 PM HAST · 1728 days ago · 33 km deep · 74 km away
60. 2.058 km SSE of Adak, AlaskaSun, Jan 2, 8:48 PM HAST · 1728 days ago · 20 km deep · 66 km away

The first 60 of at least 199.

Before

1. 1.634 km SW of Adak, AlaskaSat, Dec 11, 7:17 AM HAST · 1751 days ago · 69 km deep · 34 km away
2. 1.592 km SW of Adak, AlaskaSat, Dec 11, 5:27 AM HAST · 1751 days ago · 32 km deep · 27 km away
3. 1.6Andreanof Islands, Aleutian Islands, AlaskaSat, Dec 11, 1:20 AM HAST · 1751 days ago · 19 km deep · 71 km away
4. 1.640 km SE of Adak, AlaskaFri, Dec 10, 11:15 PM HAST · 1751 days ago · 31 km deep · 68 km away
5. 1.538 km SW of Adak, AlaskaFri, Dec 10, 7:27 PM HAST · 1751 days ago · 26 km deep · 30 km away
6. 1.963 km SSW of Adak, AlaskaThu, Dec 9, 8:04 AM HAST · 1753 days ago · 35 km deep · 20 km away
7. 2.772 km SE of Adak, AlaskaThu, Dec 9, 12:13 AM HAST · 1753 days ago · 35 km deep · 91 km away
8. 2.8143 km WSW of Adak, AlaskaWed, Dec 8, 6:31 PM HAST · 1753 days ago · 32 km deep · 86 km away
9. 2.076 km SW of Adak, AlaskaWed, Dec 8, 5:08 AM HAST · 1754 days ago · 31 km deep · 23 km away
10. 1.956 km SSE of Adak, AlaskaWed, Dec 8, 2:09 AM HAST · 1754 days ago · 16 km deep · 73 km away
11. 2.7144 km WSW of Adak, AlaskaTue, Dec 7, 9:33 AM HAST · 1755 days ago · 11 km deep · 90 km away
12. 1.887 km WSW of Adak, AlaskaMon, Dec 6, 9:24 PM HAST · 1755 days ago · 36 km deep · 38 km away
13. 2.0132 km W of Adak, AlaskaSun, Dec 5, 11:15 PM HAST · 1756 days ago · 15 km deep · 97 km away
14. 1.856 km S of Adak, AlaskaSun, Dec 5, 9:05 AM HAST · 1757 days ago · 45 km deep · 52 km away
15. 2.868 km WSW of Adak, AlaskaSat, Dec 4, 3:45 PM HAST · 1757 days ago · 35 km deep · 29 km away
16. 2.0136 km WSW of Adak, AlaskaSat, Dec 4, 1:28 PM HAST · 1758 days ago · 20 km deep · 79 km away
17. 3.352 km SSE of Adak, AlaskaSat, Dec 4, 4:49 AM HAST · 1758 days ago · 35 km deep · 56 km away
18. 1.666 km SW of Adak, AlaskaFri, Dec 3, 2:40 PM HAST · 1758 days ago · 40 km deep · 12 km away
19. 2.840 km SSE of Adak, AlaskaFri, Dec 3, 1:09 AM HAST · 1759 days ago · 52 km deep · 61 km away
20. 2.1130 km SW of Adak, AlaskaThu, Dec 2, 5:16 PM HAST · 1759 days ago · 26 km deep · 62 km away

From the USGS Earthquake Hazards Program and its partner networks, event ak021fw87tet. Read Sun, Sep 27, 2026, 11:04 AM UTC.