M1.8 earthquake 89 km SW of Adak, Alaska

Magnitude

1.8 (ML, local (Richter)), micro

Magnitude from

Alaska Earthquake Center

Local time

Sat, Jul 22, 2023, 9:30 PM HADT

UTC

2023-07-23 06:30:20 UTC

Depth

18.5 km (11.5 mi), shallow

Epicenter

51.390° N, 177.665° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Stations used

28

After

1. 2.5157 km WSW of Adak, AlaskaSat, Jul 22, 11:44 PM HADT · 1168 days ago · 35 km deep · 69 km away
2. 2.0141 km WSW of Adak, AlaskaSun, Jul 23, 9:32 AM HADT · 1167 days ago · 21 km deep · 60 km away
3. 2.5122 km SW of Adak, AlaskaMon, Jul 24, 1:31 PM HADT · 1166 days ago · 35 km deep · 33 km away
4. 1.940 km S of Adak, AlaskaMon, Jul 24, 6:03 PM HADT · 1166 days ago · 35 km deep · 75 km away
5. 2.0127 km WSW of Adak, AlaskaMon, Jul 24, 6:52 PM HADT · 1166 days ago · 13 km deep · 59 km away
6. 1.650 km SW of Adak, AlaskaMon, Jul 24, 7:49 PM HADT · 1166 days ago · 43 km deep · 42 km away
7. 2.1125 km WSW of Adak, AlaskaTue, Jul 25, 12:18 AM HADT · 1166 days ago · 42 km deep · 40 km away
8. 1.8135 km WSW of Adak, AlaskaTue, Jul 25, 7:23 AM HADT · 1165 days ago · 13 km deep · 63 km away
9. 2.0131 km WSW of Adak, AlaskaTue, Jul 25, 7:52 AM HADT · 1165 days ago · 9 km deep · 60 km away
10. 1.9Andreanof Islands, Aleutian Islands, AlaskaTue, Jul 25, 5:00 PM HADT · 1165 days ago · 86 km deep · 87 km away
11. 1.838 km SSE of Adak, AlaskaTue, Jul 25, 9:47 PM HADT · 1165 days ago · 36 km deep · 91 km away
12. 1.889 km SW of Adak, AlaskaWed, Jul 26, 9:56 AM HADT · 1164 days ago · 36 km deep · 6 km away
13. 1.759 km W of Adak, AlaskaWed, Jul 26, 2:17 PM HADT · 1164 days ago · 92 km deep · 56 km away
14. 1.566 km SSE of Adak, AlaskaWed, Jul 26, 6:59 PM HADT · 1164 days ago · 18 km deep · 91 km away
15. 1.663 km SSW of Adak, AlaskaThu, Jul 27, 12:37 AM HADT · 1164 days ago · 24 km deep · 57 km away
16. 1.710 km NW of Adak, AlaskaThu, Jul 27, 3:13 AM HADT · 1163 days ago · 118 km deep · 87 km away
17. 1.639 km SSE of Adak, AlaskaThu, Jul 27, 7:46 AM HADT · 1163 days ago · 36 km deep · 90 km away
18. 1.5Andreanof Islands, Aleutian Islands, AlaskaThu, Jul 27, 9:37 AM HADT · 1163 days ago · 16 km deep · 46 km away
19. 2.0103 km WSW of Adak, AlaskaThu, Jul 27, 10:12 PM HADT · 1163 days ago · 13 km deep · 19 km away
20. 1.7127 km WSW of Adak, AlaskaThu, Jul 27, 11:01 PM HADT · 1163 days ago · 12 km deep · 54 km away
21. 1.974 km SW of Adak, AlaskaFri, Jul 28, 12:25 AM HADT · 1163 days ago · 31 km deep · 16 km away
22. 1.5163 km WSW of Adak, AlaskaFri, Jul 28, 3:36 AM HADT · 1162 days ago · 13 km deep · 88 km away
23. 1.6126 km WSW of Adak, AlaskaFri, Jul 28, 5:55 AM HADT · 1162 days ago · 8 km deep · 53 km away
24. 1.5Andreanof Islands, Aleutian Islands, AlaskaFri, Jul 28, 6:37 AM HADT · 1162 days ago · 8 km deep · 57 km away
25. 1.9148 km WSW of Adak, AlaskaFri, Jul 28, 9:07 AM HADT · 1162 days ago · 28 km deep · 60 km away
26. 1.993 km WSW of Adak, AlaskaFri, Jul 28, 10:46 AM HADT · 1162 days ago · 56 km deep · 15 km away
27. 1.6101 km SSW of Adak, AlaskaFri, Jul 28, 1:16 PM HADT · 1162 days ago · 25 km deep · 42 km away
28. 1.759 km SSE of Adak, AlaskaFri, Jul 28, 3:03 PM HADT · 1162 days ago · 13 km deep · 84 km away
29. 1.8147 km W of Adak, AlaskaFri, Jul 28, 3:54 PM HADT · 1162 days ago · 13 km deep · 79 km away
30. 1.780 km WSW of Adak, AlaskaFri, Jul 28, 8:22 PM HADT · 1162 days ago · 36 km deep · 11 km away
31. 2.1148 km SW of Adak, AlaskaSat, Jul 29, 2:27 AM HADT · 1161 days ago · 26 km deep · 59 km away
32. 1.540 km SW of Adak, AlaskaSat, Jul 29, 3:07 AM HADT · 1161 days ago · 59 km deep · 52 km away
33. 1.664 km SSW of Adak, AlaskaSat, Jul 29, 3:28 AM HADT · 1161 days ago · 36 km deep · 40 km away
34. 1.721 km S of Adak, AlaskaSat, Jul 29, 10:29 AM HADT · 1161 days ago · 60 km deep · 82 km away
35. 3.758 km SSW of Adak, AlaskaSat, Jul 29, 1:21 PM HADT · 1161 days ago · 35 km deep · 55 km away
36. 1.882 km WSW of Adak, AlaskaSat, Jul 29, 1:55 PM HADT · 1161 days ago · 68 km deep · 34 km away
37. 2.1114 km SW of Adak, AlaskaSat, Jul 29, 6:33 PM HADT · 1161 days ago · 16 km deep · 25 km away
38. 1.9101 km WSW of Adak, AlaskaSat, Jul 29, 7:40 PM HADT · 1161 days ago · 38 km deep · 17 km away
39. 2.8183 km WSW of Adak, AlaskaSun, Jul 30, 4:34 AM HADT · 1160 days ago · 31 km deep · 97 km away
40. 1.653 km S of Adak, AlaskaSun, Jul 30, 7:09 AM HADT · 1160 days ago · 26 km deep · 72 km away
41. 1.581 km WSW of Adak, AlaskaSun, Jul 30, 10:12 AM HADT · 1160 days ago · 40 km deep · 11 km away
42. 1.689 km WSW of Adak, AlaskaSun, Jul 30, 12:22 PM HADT · 1160 days ago · 25 km deep · 8 km away
43. 1.558 km WSW of Adak, AlaskaSun, Jul 30, 1:20 PM HADT · 1160 days ago · 68 km deep · 42 km away
44. 1.5125 km WSW of Adak, AlaskaSun, Jul 30, 8:07 PM HADT · 1160 days ago · 7 km deep · 48 km away
45. 3.975 km SSW of Adak, AlaskaSun, Jul 30, 9:54 PM HADT · 1160 days ago · 35 km deep · 37 km away
46. 1.873 km SSW of Adak, AlaskaMon, Jul 31, 4:51 AM HADT · 1159 days ago · 27 km deep · 37 km away
47. 3.176 km SSE of Adak, AlaskaMon, Jul 31, 11:29 AM HADT · 1159 days ago · 20 km deep · 94 km away
48. 1.873 km SSW of Adak, AlaskaMon, Jul 31, 4:48 PM HADT · 1159 days ago · 31 km deep · 38 km away
49. 2.6117 km WSW of Adak, AlaskaMon, Jul 31, 7:24 PM HADT · 1159 days ago · 35 km deep · 33 km away
50. 2.0141 km WSW of Adak, AlaskaMon, Jul 31, 10:12 PM HADT · 1159 days ago · 11 km deep · 60 km away
51. 3.375 km SSE of Adak, AlaskaTue, Aug 1, 12:02 AM HADT · 1159 days ago · 35 km deep · 93 km away
52. 3.470 km SSE of Adak, AlaskaTue, Aug 1, 12:09 AM HADT · 1159 days ago · 35 km deep · 91 km away
53. 2.7Andreanof Islands, Aleutian Islands, AlaskaTue, Aug 1, 12:17 AM HADT · 1159 days ago · 35 km deep · 100 km away
54. 2.6143 km WSW of Adak, AlaskaTue, Aug 1, 1:34 AM HADT · 1159 days ago · 73 km deep · 70 km away
55. 1.768 km SSE of Adak, AlaskaTue, Aug 1, 5:42 AM HADT · 1158 days ago · 19 km deep · 91 km away
56. 2.980 km SSE of Adak, AlaskaTue, Aug 1, 10:26 AM HADT · 1158 days ago · 35 km deep · 99 km away
57. 1.996 km SW of Adak, AlaskaTue, Aug 1, 10:54 AM HADT · 1158 days ago · 32 km deep · 7 km away
58. 3.183 km SSE of Adak, AlaskaTue, Aug 1, 2:14 PM HADT · 1158 days ago · 35 km deep · 99 km away
59. 1.887 km SW of Adak, AlaskaTue, Aug 1, 3:37 PM HADT · 1158 days ago · 51 km deep · 10 km away
60. 2.084 km WSW of Adak, AlaskaTue, Aug 1, 3:40 PM HADT · 1158 days ago · 29 km deep · 9 km away

The first 60 of at least 201.

Before

1. 3.2132 km WSW of Adak, AlaskaSat, Jul 22, 12:46 PM HADT · 1168 days ago · 86 km deep · 66 km away
2. 2.865 km WSW of Adak, AlaskaSat, Jul 22, 8:14 AM HADT · 1168 days ago · 77 km deep · 30 km away
3. 1.8126 km WSW of Adak, AlaskaSat, Jul 22, 5:43 AM HADT · 1168 days ago · 7 km deep · 48 km away
4. 1.640 km SSE of Adak, AlaskaSat, Jul 22, 12:29 AM HADT · 1169 days ago · 30 km deep · 92 km away
5. 2.3155 km SW of Adak, AlaskaFri, Jul 21, 6:10 PM HADT · 1169 days ago · 15 km deep · 66 km away
6. 1.866 km SSW of Adak, AlaskaFri, Jul 21, 4:02 PM HADT · 1169 days ago · 26 km deep · 56 km away
7. 1.760 km SSW of Adak, AlaskaFri, Jul 21, 4:02 PM HADT · 1169 days ago · 23 km deep · 55 km away
8. 1.967 km WSW of Adak, AlaskaFri, Jul 21, 6:01 AM HADT · 1169 days ago · 60 km deep · 24 km away
9. 1.748 km SW of Adak, AlaskaFri, Jul 21, 5:50 AM HADT · 1169 days ago · 45 km deep · 43 km away
10. 2.6Andreanof Islands, Aleutian Islands, AlaskaThu, Jul 20, 11:06 PM HADT · 1170 days ago · 35 km deep · 89 km away
11. 1.983 km SW of Adak, AlaskaThu, Jul 20, 8:37 PM HADT · 1170 days ago · 41 km deep · 7 km away
12. 1.9Andreanof Islands, Aleutian Islands, AlaskaThu, Jul 20, 12:05 PM HADT · 1170 days ago · 7 km deep · 39 km away
13. 1.875 km S of Adak, AlaskaThu, Jul 20, 8:31 AM HADT · 1170 days ago · 17 km deep · 88 km away
14. 3.3123 km WSW of Adak, AlaskaThu, Jul 20, 7:53 AM HADT · 1170 days ago · 32 km deep · 40 km away
15. 1.894 km SW of Adak, AlaskaThu, Jul 20, 2:47 AM HADT · 1170 days ago · 14 km deep · 6 km away
16. 1.875 km S of Adak, AlaskaWed, Jul 19, 8:43 PM HADT · 1171 days ago · 19 km deep · 88 km away
17. 1.942 km S of Adak, AlaskaWed, Jul 19, 12:48 PM HADT · 1171 days ago · 49 km deep · 81 km away
18. 1.545 km SSE of Adak, AlaskaWed, Jul 19, 10:26 AM HADT · 1171 days ago · 29 km deep · 92 km away
19. 1.655 km SSW of Adak, AlaskaWed, Jul 19, 7:38 AM HADT · 1171 days ago · 39 km deep · 43 km away
20. 1.696 km W of Adak, AlaskaTue, Jul 18, 5:11 PM HADT · 1172 days ago · -2 km deep · 55 km away

From the USGS Earthquake Hazards Program and its partner networks, event ak0239dhdviv. Read Fri, Oct 2, 2026, 10:26 PM UTC.