M3.3 earthquake 83 km WSW of Adak, Alaska

Magnitude

3.3 (ml), minor

Local time

Thu, Jan 20, 2022, 7:01 PM HAST

UTC

2022-01-21 05:01:57 UTC

Depth

75.7 km (47.0 mi), intermediate-depth

Epicenter

51.559° N, 177.735° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 8.5 km horizontally, 12.0 km in depth

Magnitude uncertainty

±0.10

Depth from

From location

Station coverage gap

193°, poorly surrounded by stations

Stations used

41

After

1. 1.61 km ESE of Adak, AlaskaThu, Jan 20, 8:43 PM HAST · 1713 days ago · 4 km deep · 85 km away
2. 1.777 km WSW of Adak, AlaskaFri, Jan 21, 5:44 PM HAST · 1712 days ago · 32 km deep · 8 km away
3. 1.7111 km SW of Adak, AlaskaFri, Jan 21, 9:45 PM HAST · 1712 days ago · 21 km deep · 43 km away
4. 1.684 km SW of Adak, AlaskaSat, Jan 22, 2:12 PM HAST · 1711 days ago · 37 km deep · 19 km away
5. 1.7141 km WSW of Adak, AlaskaSat, Jan 22, 6:04 PM HAST · 1711 days ago · 24 km deep · 58 km away
6. 1.936 km W of Adak, AlaskaSat, Jan 22, 8:19 PM HAST · 1711 days ago · 91 km deep · 55 km away
7. 1.6138 km WSW of Adak, AlaskaSun, Jan 23, 3:17 AM HAST · 1711 days ago · 24 km deep · 54 km away
8. 1.658 km SSW of Adak, AlaskaSun, Jan 23, 5:34 PM HAST · 1710 days ago · 37 km deep · 47 km away
9. 3.1175 km WSW of Adak, AlaskaSun, Jan 23, 7:34 PM HAST · 1710 days ago · 35 km deep · 92 km away
10. 1.836 km SSW of Adak, AlaskaMon, Jan 24, 1:12 AM HAST · 1710 days ago · 60 km deep · 67 km away
11. 1.5112 km SW of Adak, AlaskaMon, Jan 24, 2:16 AM HAST · 1710 days ago · 9 km deep · 40 km away
12. 4.027 km N of Adak, AlaskaMon, Jan 24, 2:58 AM HAST · 1710 days ago · 108 km deep · 98 km away
13. 1.6Andreanof Islands, Aleutian Islands, AlaskaMon, Jan 24, 8:06 AM HAST · 1710 days ago · 29 km deep · 28 km away
14. 1.8178 km WSW of Adak, AlaskaMon, Jan 24, 2:34 PM HAST · 1709 days ago · 24 km deep · 95 km away
15. 2.786 km SW of Adak, AlaskaMon, Jan 24, 3:35 PM HAST · 1709 days ago · 43 km deep · 15 km away
16. 1.6183 km WSW of Adak, AlaskaMon, Jan 24, 6:07 PM HAST · 1709 days ago · 23 km deep · 99 km away
17. 1.861 km S of Adak, AlaskaMon, Jan 24, 9:29 PM HAST · 1709 days ago · 23 km deep · 70 km away
18. 1.6112 km WSW of Adak, AlaskaMon, Jan 24, 10:56 PM HAST · 1709 days ago · 7 km deep · 29 km away
19. 1.639 km SSW of Adak, AlaskaTue, Jan 25, 4:31 AM HAST · 1709 days ago · 34 km deep · 65 km away
20. 4.020 km WSW of Adak, AlaskaWed, Jan 26, 2:09 AM HAST · 1708 days ago · 92 km deep · 63 km away
21. 1.860 km SSW of Adak, AlaskaThu, Jan 27, 7:27 PM HAST · 1706 days ago · 43 km deep · 45 km away
22. 2.2157 km WSW of Adak, AlaskaThu, Jan 27, 9:24 PM HAST · 1706 days ago · 65 km deep · 76 km away
23. 2.7152 km WSW of Adak, AlaskaFri, Jan 28, 6:43 PM HAST · 1705 days ago · 35 km deep · 70 km away
24. 1.833 km S of Adak, AlaskaFri, Jan 28, 9:26 PM HAST · 1705 days ago · 41 km deep · 70 km away
25. 1.981 km WSW of Adak, AlaskaSat, Jan 29, 1:36 AM HAST · 1705 days ago · 13 km deep · 10 km away
26. 1.66 km ENE of Adak, AlaskaSat, Jan 29, 3:42 PM HAST · 1704 days ago · 8 km deep · 90 km away
27. 1.7126 km WSW of Adak, AlaskaSat, Jan 29, 7:54 PM HAST · 1704 days ago · 25 km deep · 42 km away
28. 2.9116 km SW of Adak, AlaskaSat, Jan 29, 9:26 PM HAST · 1704 days ago · 35 km deep · 55 km away
29. 1.777 km SW of Adak, AlaskaSat, Jan 29, 9:53 PM HAST · 1704 days ago · 31 km deep · 18 km away
30. 2.0135 km WSW of Adak, AlaskaSun, Jan 30, 9:55 AM HAST · 1703 days ago · 24 km deep · 53 km away
31. 1.835 km S of Adak, AlaskaSun, Jan 30, 1:54 PM HAST · 1703 days ago · 40 km deep · 73 km away
32. 1.766 km WSW of Adak, AlaskaMon, Jan 31, 6:38 PM HAST · 1702 days ago · 66 km deep · 21 km away
33. 1.7150 km WSW of Adak, AlaskaMon, Jan 31, 7:38 PM HAST · 1702 days ago · 23 km deep · 67 km away
34. 1.7119 km SW of Adak, AlaskaMon, Jan 31, 8:27 PM HAST · 1702 days ago · 26 km deep · 40 km away
35. 1.735 km SSW of Adak, AlaskaMon, Jan 31, 10:48 PM HAST · 1702 days ago · 25 km deep · 64 km away
36. 1.8155 km W of Adak, AlaskaTue, Feb 1, 8:40 AM HAST · 1702 days ago · 17 km deep · 78 km away
37. 1.966 km SSW of Adak, AlaskaTue, Feb 1, 11:03 AM HAST · 1701 days ago · 26 km deep · 54 km away
38. 3.7138 km WSW of Adak, AlaskaTue, Feb 1, 6:51 PM HAST · 1701 days ago · 65 km deep · 55 km away
39. 4.4132 km WSW of Adak, AlaskaTue, Feb 1, 11:07 PM HAST · 1701 days ago · 46 km deep · 49 km away
40. 2.1132 km WSW of Adak, AlaskaWed, Feb 2, 2:11 PM HAST · 1700 days ago · 22 km deep · 50 km away
41. 2.515 km SW of Adak, AlaskaWed, Feb 2, 5:26 PM HAST · 1700 days ago · 109 km deep · 69 km away
42. 1.9107 km SW of Adak, AlaskaWed, Feb 2, 11:18 PM HAST · 1700 days ago · 25 km deep · 36 km away
43. 2.2136 km SW of Adak, AlaskaWed, Feb 2, 11:27 PM HAST · 1700 days ago · 18 km deep · 67 km away
44. 1.746 km SSE of Adak, AlaskaThu, Feb 3, 8:46 AM HAST · 1700 days ago · 28 km deep · 95 km away
45. 1.6108 km WSW of Adak, AlaskaThu, Feb 3, 11:51 AM HAST · 1699 days ago · 14 km deep · 33 km away
46. 1.775 km SW of Adak, AlaskaThu, Feb 3, 2:09 PM HAST · 1699 days ago · 40 km deep · 17 km away
47. 1.818 km S of Adak, AlaskaThu, Feb 3, 3:59 PM HAST · 1699 days ago · 69 km deep · 77 km away
48. 1.764 km SSW of Adak, AlaskaThu, Feb 3, 5:41 PM HAST · 1699 days ago · 37 km deep · 55 km away
49. 1.850 km SW of Adak, AlaskaThu, Feb 3, 8:24 PM HAST · 1699 days ago · 42 km deep · 45 km away
50. 1.651 km SW of Adak, AlaskaThu, Feb 3, 9:19 PM HAST · 1699 days ago · 42 km deep · 46 km away
51. 1.745 km SSE of Adak, AlaskaThu, Feb 3, 11:49 PM HAST · 1699 days ago · 38 km deep · 89 km away
52. 1.689 km SW of Adak, AlaskaFri, Feb 4, 3:21 AM HAST · 1699 days ago · 36 km deep · 25 km away
53. 1.6154 km W of Adak, AlaskaFri, Feb 4, 4:49 AM HAST · 1699 days ago · 8 km deep · 82 km away
54. 3.5138 km WSW of Adak, AlaskaFri, Feb 4, 2:39 PM HAST · 1698 days ago · 35 km deep · 55 km away
55. 1.665 km SSE of Adak, AlaskaFri, Feb 4, 9:10 PM HAST · 1698 days ago · 28 km deep · 98 km away
56. 1.6139 km WSW of Adak, AlaskaSat, Feb 5, 12:02 AM HAST · 1698 days ago · 26 km deep · 55 km away
57. 1.532 km S of Adak, AlaskaSat, Feb 5, 4:18 AM HAST · 1698 days ago · 61 km deep · 79 km away
58. 1.8Andreanof Islands, Aleutian Islands, AlaskaSat, Feb 5, 4:26 AM HAST · 1698 days ago · 23 km deep · 60 km away
59. 1.613 km SSE of Adak, AlaskaSat, Feb 5, 4:44 AM HAST · 1698 days ago · 64 km deep · 84 km away
60. 2.098 km WSW of Adak, AlaskaSat, Feb 5, 9:05 AM HAST · 1698 days ago · 67 km deep · 17 km away

The first 60 of at least 199.

Before

1. 1.9153 km WSW of Adak, AlaskaWed, Jan 19, 2:34 AM HAST · 1715 days ago · 38 km deep · 70 km away
2. 1.78 km NNE of Adak, AlaskaTue, Jan 18, 5:16 PM HAST · 1715 days ago · 7 km deep · 91 km away
3. 2.795 km SW of Adak, AlaskaTue, Jan 18, 2:48 AM HAST · 1716 days ago · 35 km deep · 42 km away
4. 1.946 km S of Adak, AlaskaMon, Jan 17, 4:15 PM HAST · 1716 days ago · 42 km deep · 83 km away
5. 1.861 km SSW of Adak, AlaskaMon, Jan 17, 12:53 PM HAST · 1716 days ago · 46 km deep · 51 km away
6. 1.66 km NE of Adak, AlaskaMon, Jan 17, 12:45 PM HAST · 1716 days ago · 3 km deep · 90 km away
7. 1.773 km WSW of Adak, AlaskaMon, Jan 17, 9:24 AM HAST · 1717 days ago · 64 km deep · 15 km away
8. 1.833 km S of Adak, AlaskaMon, Jan 17, 7:13 AM HAST · 1717 days ago · 46 km deep · 78 km away
9. 2.9131 km SW of Adak, AlaskaMon, Jan 17, 3:28 AM HAST · 1717 days ago · 28 km deep · 51 km away
10. 1.846 km SSE of Adak, AlaskaSun, Jan 16, 10:06 PM HAST · 1717 days ago · 32 km deep · 95 km away
11. 2.3120 km W of Adak, AlaskaSun, Jan 16, 9:11 PM HAST · 1717 days ago · 106 km deep · 58 km away
12. 1.715 km SW of Adak, AlaskaSun, Jan 16, 8:58 PM HAST · 1717 days ago · 66 km deep · 71 km away
13. 1.745 km SW of Adak, AlaskaSun, Jan 16, 7:07 PM HAST · 1717 days ago · 52 km deep · 44 km away
14. 1.988 km WSW of Adak, AlaskaSun, Jan 16, 4:39 PM HAST · 1717 days ago · 38 km deep · 6 km away
15. 2.075 km WSW of Adak, AlaskaSun, Jan 16, 4:37 AM HAST · 1718 days ago · 72 km deep · 13 km away
16. 3.2123 km SW of Adak, AlaskaSat, Jan 15, 5:19 AM HAST · 1719 days ago · 35 km deep · 43 km away
17. 1.668 km SSW of Adak, AlaskaFri, Jan 14, 5:37 PM HAST · 1719 days ago · 26 km deep · 55 km away
18. 2.230 km SSW of Adak, AlaskaFri, Jan 14, 3:40 PM HAST · 1719 days ago · 62 km deep · 67 km away
19. 1.6128 km WSW of Adak, AlaskaFri, Jan 14, 3:29 PM HAST · 1719 days ago · 22 km deep · 44 km away
20. 1.766 km SSW of Adak, AlaskaFri, Jan 14, 10:35 AM HAST · 1719 days ago · 34 km deep · 53 km away

From the USGS Earthquake Hazards Program and its partner networks, event us7000gl23 (also filed as ak022yt9sjl). Read Wed, Sep 30, 2026, 7:09 AM UTC.