M1.6 earthquake 40 km W of Adak, Alaska

Magnitude

1.6 (ML, local (Richter)), micro

Magnitude from

AV

Local time

Tue, Dec 19, 2023, 10:37 AM HAST

UTC

2023-12-19 20:37:06 UTC

Depth

7.5 km (4.6 mi), shallow

Epicenter

51.919° N, 177.220° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 2.0 km horizontally, 1.3 km in depth

Magnitude uncertainty

±0.30

Depth from

From location

Station coverage gap

308°, poorly surrounded by stations

Stations used

4

After

1. 4.0119 km WNW of Adak, AlaskaTue, Dec 19, 1:21 PM HAST · 1016 days ago · 221 km deep · 80 km away
2. 4.5125 km SW of Adak, AlaskaTue, Dec 19, 4:04 PM HAST · 1016 days ago · 46 km deep · 98 km away
3. 2.084 km SW of Adak, AlaskaTue, Dec 19, 9:58 PM HAST · 1016 days ago · 13 km deep · 61 km away
4. 2.262 km SE of Adak, AlaskaWed, Dec 20, 2:46 PM HAST · 1015 days ago · 22 km deep · 98 km away
5. 2.8121 km WSW of Adak, AlaskaThu, Dec 21, 3:29 PM HAST · 1014 days ago · 35 km deep · 91 km away
6. 3.024 km E of Adak, AlaskaFri, Dec 22, 3:28 AM HAST · 1014 days ago · 77 km deep · 65 km away
7. 1.598 km WSW of Adak, AlaskaFri, Dec 22, 7:14 AM HAST · 1014 days ago · 19 km deep · 67 km away
8. 1.984 km W of Adak, AlaskaFri, Dec 22, 12:15 PM HAST · 1013 days ago · 10 km deep · 44 km away
9. 2.749 km SW of Adak, AlaskaFri, Dec 22, 2:55 PM HAST · 1013 days ago · 68 km deep · 46 km away
10. 3.842 km SSW of Adak, AlaskaFri, Dec 22, 8:42 PM HAST · 1013 days ago · 46 km deep · 55 km away
11. 2.8121 km WSW of Adak, AlaskaFri, Dec 22, 11:56 PM HAST · 1013 days ago · 35 km deep · 89 km away
12. 2.251 km W of Adak, AlaskaSat, Dec 23, 4:32 AM HAST · 1013 days ago · 79 km deep · 14 km away
13. 2.278 km S of Adak, AlaskaSat, Dec 23, 6:45 AM HAST · 1013 days ago · 19 km deep · 94 km away
14. 2.285 km WSW of Adak, AlaskaSat, Dec 23, 9:23 AM HAST · 1013 days ago · 76 km deep · 53 km away
15. 2.887 km WSW of Adak, AlaskaSat, Dec 23, 10:20 PM HAST · 1012 days ago · 69 km deep · 56 km away
16. 1.9128 km WSW of Adak, AlaskaSun, Dec 24, 5:13 AM HAST · 1012 days ago · 8 km deep · 90 km away
17. 1.7118 km WSW of Adak, AlaskaSun, Dec 24, 6:47 AM HAST · 1012 days ago · 20 km deep · 85 km away
18. 1.541 km SW of Adak, AlaskaSun, Dec 24, 12:31 PM HAST · 1011 days ago · 50 km deep · 34 km away
19. 1.937 km WNW of Adak, AlaskaSun, Dec 24, 1:25 PM HAST · 1011 days ago · 0 km deep · 14 km away
20. 2.0118 km WSW of Adak, AlaskaSun, Dec 24, 2:01 PM HAST · 1011 days ago · 21 km deep · 86 km away
21. 1.860 km SE of Adak, AlaskaSun, Dec 24, 4:22 PM HAST · 1011 days ago · 26 km deep · 93 km away
22. 3.072 km SSW of Adak, AlaskaSun, Dec 24, 9:30 PM HAST · 1011 days ago · 35 km deep · 73 km away
23. 1.659 km W of Adak, AlaskaSun, Dec 24, 11:17 PM HAST · 1011 days ago · 13 km deep · 23 km away
24. 1.760 km W of Adak, AlaskaMon, Dec 25, 3:23 PM HAST · 1010 days ago · 2 km deep · 25 km away
25. 2.188 km WSW of Adak, AlaskaTue, Dec 26, 4:17 AM HAST · 1010 days ago · 50 km deep · 62 km away
26. 2.2120 km SW of Adak, AlaskaTue, Dec 26, 8:31 PM HAST · 1009 days ago · 23 km deep · 94 km away
27. 2.064 km SSW of Adak, AlaskaWed, Dec 27, 10:23 AM HAST · 1009 days ago · 46 km deep · 62 km away
28. 1.869 km SW of Adak, AlaskaWed, Dec 27, 12:22 PM HAST · 1008 days ago · 33 km deep · 47 km away
29. 2.113 km SSW of Adak, AlaskaWed, Dec 27, 12:37 PM HAST · 1008 days ago · 73 km deep · 37 km away
30. 2.0124 km WSW of Adak, AlaskaWed, Dec 27, 12:58 PM HAST · 1008 days ago · 25 km deep · 93 km away
31. 2.8125 km WSW of Adak, AlaskaThu, Dec 28, 3:29 PM HAST · 1007 days ago · 35 km deep · 94 km away
32. 2.060 km SSE of Adak, AlaskaThu, Dec 28, 6:01 PM HAST · 1007 days ago · 23 km deep · 92 km away
33. 1.860 km SSE of Adak, AlaskaThu, Dec 28, 9:14 PM HAST · 1007 days ago · 23 km deep · 92 km away
34. 3.569 km WSW of Adak, AlaskaFri, Dec 29, 1:41 AM HAST · 1007 days ago · 55 km deep · 45 km away
35. 2.193 km SW of Adak, AlaskaFri, Dec 29, 2:10 AM HAST · 1007 days ago · 31 km deep · 73 km away
36. 2.690 km SW of Adak, AlaskaFri, Dec 29, 5:07 AM HAST · 1007 days ago · 35 km deep · 73 km away
37. 2.039 km S of Adak, AlaskaSat, Dec 30, 4:31 PM HAST · 1005 days ago · 42 km deep · 59 km away
38. 2.467 km NE of Adak, AlaskaSat, Dec 30, 9:14 PM HAST · 1005 days ago · 149 km deep · 93 km away
39. 2.161 km WSW of Adak, AlaskaSat, Dec 30, 9:56 PM HAST · 1005 days ago · 69 km deep · 35 km away
40. 3.0119 km WSW of Adak, AlaskaSat, Dec 30, 11:06 PM HAST · 1005 days ago · 57 km deep · 91 km away
41. 2.4135 km WSW of Adak, AlaskaSun, Dec 31, 1:26 AM HAST · 1005 days ago · 78 km deep · 97 km away
42. 2.052 km S of Adak, AlaskaSun, Dec 31, 4:40 AM HAST · 1005 days ago · 31 km deep · 70 km away
43. 1.933 km SSW of Adak, AlaskaSun, Dec 31, 11:04 AM HAST · 1005 days ago · 53 km deep · 49 km away
44. 1.950 km WSW of Adak, AlaskaSun, Dec 31, 11:20 AM HAST · 1005 days ago · 68 km deep · 27 km away
45. 2.916 km NE of Adak, AlaskaTue, Jan 2, 5:20 AM HAST · 1003 days ago · 95 km deep · 51 km away
46. 3.079 km SW of Adak, AlaskaTue, Jan 2, 7:06 AM HAST · 1003 days ago · 32 km deep · 60 km away
47. 3.764 km W of Adak, AlaskaMon, Jan 8, 8:46 PM HAST · 996 days ago · 72 km deep · 26 km away
48. 3.651 km SSW of Adak, AlaskaSun, Jan 14, 2:29 AM HAST · 991 days ago · 35 km deep · 59 km away
49. 4.111 km SSE of Adak, AlaskaTue, Jan 16, 8:13 AM HAST · 989 days ago · 70 km deep · 49 km away · felt by 1
50. 3.433 km SSE of Adak, AlaskaTue, Jan 16, 12:10 PM HAST · 988 days ago · 35 km deep · 65 km away
51. 3.965 km NNW of Adak, AlaskaMon, Jan 22, 8:03 PM HAST · 982 days ago · 9 km deep · 55 km away
52. 2.995 km SW of Adak, AlaskaSat, Jan 27, 9:25 PM HAST · 977 days ago · 35 km deep · 71 km away
53. 1.8126 km WSW of Adak, AlaskaSun, Jan 28, 12:54 PM HAST · 976 days ago · 25 km deep · 96 km away
54. 2.068 km SW of Adak, AlaskaSun, Jan 28, 3:13 PM HAST · 976 days ago · 33 km deep · 48 km away
55. 4.0103 km SW of Adak, AlaskaMon, Jan 29, 5:58 AM HAST · 976 days ago · 53 km deep · 79 km away
56. 1.8127 km WSW of Adak, AlaskaMon, Jan 29, 8:11 AM HAST · 976 days ago · 14 km deep · 91 km away
57. 1.8127 km WSW of Adak, AlaskaMon, Jan 29, 8:12 AM HAST · 976 days ago · 14 km deep · 90 km away
58. 2.673 km SW of Adak, AlaskaMon, Jan 29, 2:49 PM HAST · 975 days ago · 35 km deep · 62 km away
59. 1.753 km SSE of Adak, AlaskaMon, Jan 29, 5:54 PM HAST · 975 days ago · 17 km deep · 80 km away
60. 2.159 km SE of Adak, AlaskaMon, Jan 29, 9:57 PM HAST · 975 days ago · 25 km deep · 96 km away

The first 60 of 137.

Before

1. 1.837 km WNW of Adak, AlaskaTue, Dec 19, 2:07 AM HAST · 1017 days ago · 5 km deep · 9 km away
2. 1.639 km WNW of Adak, AlaskaTue, Dec 19, 1:17 AM HAST · 1017 days ago · 4 km deep · 7 km away
3. 2.935 km W of Adak, AlaskaMon, Dec 18, 9:31 PM HAST · 1017 days ago · 5 km deep · 5 km away
4. 2.577 km SSW of Adak, AlaskaMon, Dec 18, 7:24 PM HAST · 1017 days ago · 35 km deep · 77 km away
5. 2.1122 km WSW of Adak, AlaskaMon, Dec 18, 4:56 AM HAST · 1018 days ago · 26 km deep · 90 km away
6. 2.166 km SSE of Adak, AlaskaMon, Dec 18, 4:40 AM HAST · 1018 days ago · 19 km deep · 90 km away
7. 2.7125 km WNW of Adak, AlaskaMon, Dec 18, 1:17 AM HAST · 1018 days ago · 151 km deep · 85 km away
8. 2.4127 km W of Adak, AlaskaSun, Dec 17, 11:16 PM HAST · 1018 days ago · 88 km deep · 88 km away
9. 2.155 km SSW of Adak, AlaskaSun, Dec 17, 3:30 PM HAST · 1018 days ago · 23 km deep · 61 km away
10. 1.886 km WSW of Adak, AlaskaSun, Dec 17, 1:52 PM HAST · 1018 days ago · 40 km deep · 58 km away
11. 1.859 km SE of Adak, AlaskaSun, Dec 17, 11:21 AM HAST · 1019 days ago · 26 km deep · 96 km away
12. 1.560 km WSW of Adak, AlaskaSun, Dec 17, 9:42 AM HAST · 1019 days ago · 3 km deep · 26 km away
13. 1.9117 km WSW of Adak, AlaskaSun, Dec 17, 7:47 AM HAST · 1019 days ago · 26 km deep · 87 km away
14. 1.797 km WSW of Adak, AlaskaSun, Dec 17, 7:11 AM HAST · 1019 days ago · 14 km deep · 65 km away
15. 3.010 km WSW of Adak, AlaskaSat, Dec 16, 11:53 PM HAST · 1019 days ago · 86 km deep · 32 km away
16. 2.897 km WSW of Adak, AlaskaSat, Dec 16, 8:57 PM HAST · 1019 days ago · 35 km deep · 67 km away
17. 2.670 km SSW of Adak, AlaskaSat, Dec 16, 8:26 PM HAST · 1019 days ago · 35 km deep · 73 km away
18. 2.1118 km WSW of Adak, AlaskaSat, Dec 16, 6:19 PM HAST · 1019 days ago · 26 km deep · 85 km away
19. 1.968 km SW of Adak, AlaskaSat, Dec 16, 4:59 PM HAST · 1019 days ago · 47 km deep · 52 km away
20. 2.0132 km W of Adak, AlaskaSat, Dec 16, 2:33 PM HAST · 1019 days ago · 18 km deep · 94 km away

From the USGS Earthquake Hazards Program and its partner networks, event av92159121. Read Thu, Oct 1, 2026, 9:23 AM UTC.