M1.6 earthquake 79 km W of Adak, Alaska

Magnitude

1.6 (ML, local (Richter)), micro

Magnitude from

AV

Local time

Fri, Sep 8, 2023, 7:39 AM HADT

UTC

2023-09-08 16:39:13 UTC

Depth

-1.8 km (-1.1 mi), shallow

Epicenter

51.856° N, 177.787° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 1.9 km horizontally, 2.3 km in depth

Magnitude uncertainty

±0.19

Depth from

From location

Station coverage gap

273°, poorly surrounded by stations

Stations used

6

After

1. 1.9114 km WSW of Adak, AlaskaFri, Sep 8, 9:01 AM HADT · 1120 days ago · 39 km deep · 52 km away
2. 1.828 km SSE of Adak, AlaskaFri, Sep 8, 6:45 PM HADT · 1120 days ago · 46 km deep · 94 km away
3. 1.941 km S of Adak, AlaskaSat, Sep 9, 1:32 PM HADT · 1119 days ago · 44 km deep · 88 km away
4. 2.168 km SW of Adak, AlaskaSat, Sep 9, 2:05 PM HADT · 1119 days ago · 32 km deep · 51 km away
5. 1.689 km WSW of Adak, AlaskaSat, Sep 9, 8:50 PM HADT · 1119 days ago · 25 km deep · 34 km away
6. 2.789 km SW of Adak, AlaskaSun, Sep 10, 2:15 AM HADT · 1119 days ago · 35 km deep · 51 km away
7. 1.9145 km WSW of Adak, AlaskaSun, Sep 10, 5:44 AM HADT · 1118 days ago · 25 km deep · 80 km away
8. 1.7145 km WSW of Adak, AlaskaSun, Sep 10, 4:51 PM HADT · 1118 days ago · 23 km deep · 81 km away
9. 2.0155 km WSW of Adak, AlaskaSun, Sep 10, 5:39 PM HADT · 1118 days ago · 25 km deep · 87 km away
10. 2.6112 km SW of Adak, AlaskaSun, Sep 10, 8:43 PM HADT · 1118 days ago · 35 km deep · 77 km away
11. 1.672 km SW of Adak, AlaskaMon, Sep 11, 10:48 AM HADT · 1117 days ago · 39 km deep · 65 km away
12. 1.6136 km WSW of Adak, AlaskaMon, Sep 11, 1:01 PM HADT · 1117 days ago · 26 km deep · 70 km away
13. 2.996 km SW of Adak, AlaskaMon, Sep 11, 7:03 PM HADT · 1117 days ago · 35 km deep · 55 km away
14. 1.829 km SW of Adak, AlaskaTue, Sep 12, 5:22 AM HADT · 1116 days ago · 2 km deep · 58 km away
15. 2.215 km ESE of Adak, AlaskaTue, Sep 12, 5:41 AM HADT · 1116 days ago · 101 km deep · 94 km away
16. 2.9144 km SW of Adak, AlaskaTue, Sep 12, 1:09 PM HADT · 1116 days ago · 35 km deep · 96 km away
17. 1.968 km SSW of Adak, AlaskaTue, Sep 12, 9:02 PM HADT · 1116 days ago · 26 km deep · 80 km away
18. 1.7120 km SW of Adak, AlaskaWed, Sep 13, 1:22 AM HADT · 1116 days ago · 23 km deep · 68 km away
19. 1.768 km SSW of Adak, AlaskaWed, Sep 13, 11:43 AM HADT · 1115 days ago · 25 km deep · 82 km away
20. 1.956 km S of Adak, AlaskaWed, Sep 13, 6:43 PM HADT · 1115 days ago · 37 km deep · 88 km away
21. 2.650 km WSW of Adak, AlaskaWed, Sep 13, 10:21 PM HADT · 1115 days ago · 78 km deep · 33 km away
22. 1.8129 km WSW of Adak, AlaskaWed, Sep 13, 11:05 PM HADT · 1115 days ago · 25 km deep · 53 km away
23. 3.3125 km WSW of Adak, AlaskaThu, Sep 14, 12:34 AM HADT · 1115 days ago · 87 km deep · 49 km away
24. 2.649 km S of Adak, AlaskaThu, Sep 14, 1:36 AM HADT · 1115 days ago · 40 km deep · 91 km away
25. 2.064 km SSW of Adak, AlaskaThu, Sep 14, 6:27 PM HADT · 1114 days ago · 46 km deep · 72 km away
26. 2.5157 km WSW of Adak, AlaskaThu, Sep 14, 6:48 PM HADT · 1114 days ago · 10 km deep · 91 km away
27. 2.759 km S of Adak, AlaskaFri, Sep 15, 2:37 AM HADT · 1114 days ago · 35 km deep · 92 km away
28. 1.757 km S of Adak, AlaskaFri, Sep 15, 4:29 AM HADT · 1113 days ago · 39 km deep · 88 km away
29. 2.072 km SSW of Adak, AlaskaFri, Sep 15, 7:19 AM HADT · 1113 days ago · 32 km deep · 78 km away
30. 1.830 km WSW of Adak, AlaskaFri, Sep 15, 2:19 PM HADT · 1113 days ago · 13 km deep · 53 km away
31. 1.753 km SW of Adak, AlaskaSat, Sep 16, 4:59 PM HADT · 1112 days ago · 55 km deep · 58 km away
32. 1.8115 km WSW of Adak, AlaskaSat, Sep 16, 10:45 PM HADT · 1112 days ago · 13 km deep · 53 km away
33. 2.8Andreanof Islands, Aleutian Islands, AlaskaSat, Sep 16, 11:59 PM HADT · 1112 days ago · 119 km deep · 100 km away
34. 1.836 km W of Adak, AlaskaSun, Sep 17, 8:46 AM HADT · 1111 days ago · 79 km deep · 43 km away
35. 1.863 km SSW of Adak, AlaskaSun, Sep 17, 8:02 PM HADT · 1111 days ago · 33 km deep · 76 km away
36. 2.7131 km SW of Adak, AlaskaTue, Sep 19, 1:14 AM HADT · 1110 days ago · 35 km deep · 98 km away
37. 2.6128 km WSW of Adak, AlaskaTue, Sep 19, 7:28 PM HADT · 1109 days ago · 35 km deep · 70 km away
38. 2.1111 km WSW of Adak, AlaskaWed, Sep 20, 1:11 AM HADT · 1109 days ago · 13 km deep · 46 km away
39. 2.954 km SW of Adak, AlaskaWed, Sep 20, 6:03 AM HADT · 1108 days ago · 65 km deep · 47 km away
40. 2.7Andreanof Islands, Aleutian Islands, AlaskaWed, Sep 20, 8:05 AM HADT · 1108 days ago · 35 km deep · 85 km away
41. 1.9Andreanof Islands, Aleutian Islands, AlaskaWed, Sep 20, 3:31 PM HADT · 1108 days ago · 11 km deep · 69 km away
42. 1.996 km SW of Adak, AlaskaWed, Sep 20, 3:42 PM HADT · 1108 days ago · 23 km deep · 68 km away
43. 2.081 km SW of Adak, AlaskaThu, Sep 21, 7:02 AM HADT · 1107 days ago · 39 km deep · 51 km away
44. 1.6Andreanof Islands, Aleutian Islands, AlaskaThu, Sep 21, 11:43 AM HADT · 1107 days ago · 9 km deep · 25 km away
45. 2.8Andreanof Islands, Aleutian Islands, AlaskaThu, Sep 21, 8:32 PM HADT · 1107 days ago · 26 km deep · 80 km away
46. 1.886 km WSW of Adak, AlaskaFri, Sep 22, 9:06 AM HADT · 1106 days ago · 38 km deep · 46 km away
47. 2.3119 km W of Adak, AlaskaFri, Sep 22, 12:59 PM HADT · 1106 days ago · 134 km deep · 40 km away
48. 1.632 km SSE of Adak, AlaskaFri, Sep 22, 2:32 PM HADT · 1106 days ago · 44 km deep · 99 km away
49. 1.8151 km WSW of Adak, AlaskaFri, Sep 22, 3:17 PM HADT · 1106 days ago · 26 km deep · 91 km away
50. 2.0Andreanof Islands, Aleutian Islands, AlaskaFri, Sep 22, 4:11 PM HADT · 1106 days ago · 26 km deep · 93 km away
51. 2.0114 km W of Adak, AlaskaSat, Sep 23, 3:59 PM HADT · 1105 days ago · 68 km deep · 37 km away
52. 1.8125 km WSW of Adak, AlaskaSun, Sep 24, 8:41 AM HADT · 1104 days ago · 54 km deep · 60 km away
53. 1.643 km S of Adak, AlaskaSun, Sep 24, 10:25 AM HADT · 1104 days ago · 33 km deep · 92 km away
54. 3.7129 km W of Adak, AlaskaSun, Sep 24, 8:24 PM HADT · 1104 days ago · 147 km deep · 52 km away
55. 3.251 km S of Adak, AlaskaSun, Sep 24, 11:27 PM HADT · 1104 days ago · 10 km deep · 89 km away
56. 1.761 km SW of Adak, AlaskaMon, Sep 25, 9:00 AM HADT · 1103 days ago · 44 km deep · 46 km away
57. 2.7127 km WSW of Adak, AlaskaMon, Sep 25, 9:10 AM HADT · 1103 days ago · 10 km deep · 56 km away
58. 1.8134 km W of Adak, AlaskaMon, Sep 25, 2:37 PM HADT · 1103 days ago · 13 km deep · 56 km away
59. 1.8128 km WSW of Adak, AlaskaTue, Sep 26, 4:22 AM HADT · 1102 days ago · 15 km deep · 63 km away
60. 1.5116 km WSW of Adak, AlaskaTue, Sep 26, 4:40 AM HADT · 1102 days ago · 51 km deep · 48 km away

The first 60 of 185.

Before

1. 2.1101 km W of Adak, AlaskaFri, Sep 8, 3:27 AM HADT · 1121 days ago · 84 km deep · 24 km away
2. 1.7132 km WSW of Adak, AlaskaFri, Sep 8, 2:55 AM HADT · 1121 days ago · 11 km deep · 59 km away
3. 2.622 km ESE of Adak, AlaskaFri, Sep 8, 2:32 AM HADT · 1121 days ago · 68 km deep · 99 km away
4. 1.621 km S of Adak, AlaskaThu, Sep 7, 10:46 PM HADT · 1121 days ago · 65 km deep · 78 km away
5. 1.546 km SSW of Adak, AlaskaThu, Sep 7, 9:49 PM HADT · 1121 days ago · 42 km deep · 68 km away
6. 1.9136 km WSW of Adak, AlaskaThu, Sep 7, 6:09 PM HADT · 1121 days ago · 23 km deep · 79 km away
7. 1.719 km WSW of Adak, AlaskaThu, Sep 7, 2:58 PM HADT · 1121 days ago · 77 km deep · 61 km away
8. 2.048 km SSW of Adak, AlaskaThu, Sep 7, 12:53 PM HADT · 1121 days ago · 39 km deep · 69 km away
9. 1.891 km WSW of Adak, AlaskaThu, Sep 7, 12:33 PM HADT · 1121 days ago · 28 km deep · 40 km away
10. 1.676 km WSW of Adak, AlaskaThu, Sep 7, 10:42 AM HADT · 1121 days ago · 45 km deep · 43 km away
11. 1.5Andreanof Islands, Aleutian Islands, AlaskaThu, Sep 7, 5:28 AM HADT · 1121 days ago · 12 km deep · 79 km away
12. 1.524 km SSW of Adak, AlaskaThu, Sep 7, 12:18 AM HADT · 1122 days ago · 65 km deep · 71 km away
13. 1.542 km S of Adak, AlaskaWed, Sep 6, 10:48 AM HADT · 1122 days ago · 35 km deep · 92 km away
14. 1.597 km WSW of Adak, AlaskaWed, Sep 6, 4:51 AM HADT · 1122 days ago · 37 km deep · 51 km away
15. 1.5103 km SW of Adak, AlaskaWed, Sep 6, 4:36 AM HADT · 1122 days ago · 20 km deep · 81 km away
16. 1.8155 km WSW of Adak, AlaskaTue, Sep 5, 10:29 PM HADT · 1123 days ago · 39 km deep · 83 km away
17. 3.9130 km WSW of Adak, AlaskaTue, Sep 5, 10:04 PM HADT · 1123 days ago · 36 km deep · 73 km away
18. 2.0103 km WSW of Adak, AlaskaTue, Sep 5, 6:02 PM HADT · 1123 days ago · 68 km deep · 36 km away
19. 1.6139 km WSW of Adak, AlaskaTue, Sep 5, 12:33 PM HADT · 1123 days ago · 24 km deep · 78 km away
20. 3.268 km SW of Adak, AlaskaMon, Sep 4, 5:59 PM HADT · 1124 days ago · 65 km deep · 46 km away

From the USGS Earthquake Hazards Program and its partner networks, event av92035816. Read Sat, Oct 3, 2026, 12:00 AM UTC.