M1.8 earthquake 37 km SSW of False Pass, Alaska

Magnitude

1.8 (ml), micro

Local time

Sat, Oct 21, 2023, 6:21 AM AKDT

UTC

2023-10-21 14:21:35 UTC

Depth

8.9 km (5.5 mi), shallow

Epicenter

54.553° N, 163.667° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.9 km horizontally, 0.3 km in depth

Magnitude uncertainty

±0.40

Depth from

From location

Station coverage gap

237°, poorly surrounded by stations

Stations used

6

• King Cove, AlaskaPopulation 1,009. Forecast103 kmWSW

After

1. 2.3110 km ESE of Akutan, AlaskaSat, Oct 21, 10:14 AM AKDT · 1072 days ago · 26 km deep · 97 km away
2. 2.728 km S of King Cove, AlaskaTue, Oct 24, 12:32 PM AKDT · 1069 days ago · 85 km deep · 94 km away
3. 2.163 km S of King Cove, AlaskaWed, Oct 25, 1:32 AM AKDT · 1069 days ago · 55 km deep · 86 km away
4. 2.6111 km S of False Pass, AlaskaThu, Oct 26, 4:05 PM AKDT · 1067 days ago · 35 km deep · 84 km away
5. 2.886 km SE of False Pass, AlaskaFri, Oct 27, 11:43 PM AKDT · 1066 days ago · 26 km deep · 81 km away
6. 1.939 km SSW of King Cove, AlaskaSat, Oct 28, 9:43 AM AKDT · 1065 days ago · 73 km deep · 71 km away
7. 2.196 km S of False Pass, AlaskaSun, Oct 29, 2:17 PM AKDT · 1064 days ago · 26 km deep · 62 km away
8. 2.127 km SSE of False Pass, AlaskaSun, Oct 29, 9:38 PM AKDT · 1064 days ago · 80 km deep · 24 km away
9. 1.949 km SSW of King Cove, AlaskaTue, Oct 31, 6:43 PM AKDT · 1062 days ago · 13 km deep · 72 km away
10. 2.1109 km SSW of False Pass, AlaskaThu, Nov 2, 3:23 PM AKDT · 1060 days ago · 35 km deep · 73 km away
11. 2.9109 km SSW of False Pass, AlaskaSat, Nov 4, 3:57 AM AKDT · 1059 days ago · 35 km deep · 73 km away
12. 1.546 km WSW of False Pass, AlaskaSat, Nov 4, 5:59 AM AKDT · 1059 days ago · 7 km deep · 35 km away
13. 1.9Unimak Island region, AlaskaSat, Nov 4, 12:01 PM AKDT · 1058 days ago · 9 km deep · 45 km away
14. 2.693 km SSE of False Pass, AlaskaSat, Nov 4, 7:55 PM AKDT · 1058 days ago · 35 km deep · 71 km away
15. 2.593 km SSE of False Pass, AlaskaSun, Nov 5, 12:46 AM AKDT · 1058 days ago · 35 km deep · 70 km away
16. 2.797 km ESE of Akutan, AlaskaSun, Nov 5, 7:31 PM AKST · 1057 days ago · 33 km deep · 88 km away
17. 3.071 km SSW of False Pass, AlaskaMon, Nov 6, 9:05 PM AKST · 1056 days ago · 73 km deep · 36 km away
18. 2.6110 km S of False Pass, AlaskaWed, Nov 8, 1:39 AM AKST · 1055 days ago · 35 km deep · 76 km away
19. 2.213 km ESE of Cold Bay, AlaskaThu, Nov 9, 6:21 AM AKST · 1054 days ago · 146 km deep · 98 km away
20. 1.9108 km SSW of False Pass, AlaskaThu, Nov 9, 11:34 AM AKST · 1053 days ago · 20 km deep · 72 km away
21. 3.687 km SW of False Pass, AlaskaSat, Nov 11, 2:33 PM AKST · 1051 days ago · 79 km deep · 55 km away
22. 4.3103 km ESE of Akutan, AlaskaTue, Nov 14, 3:58 AM AKST · 1049 days ago · 44 km deep · 88 km away
23. 2.7114 km ESE of Akutan, AlaskaTue, Nov 14, 4:22 AM AKST · 1049 days ago · 35 km deep · 89 km away
24. 2.5115 km ESE of Akutan, AlaskaTue, Nov 14, 5:12 AM AKST · 1049 days ago · 35 km deep · 94 km away
25. 2.6106 km ESE of Akutan, AlaskaTue, Nov 14, 7:33 AM AKST · 1048 days ago · 57 km deep · 88 km away
26. 2.699 km S of False Pass, AlaskaTue, Nov 14, 11:26 AM AKST · 1048 days ago · 35 km deep · 67 km away
27. 2.245 km W of False Pass, AlaskaWed, Nov 15, 4:40 AM AKST · 1048 days ago · 10 km deep · 39 km away
28. 2.8111 km ESE of Akutan, AlaskaThu, Nov 16, 6:28 PM AKST · 1046 days ago · 28 km deep · 92 km away
29. 2.897 km E of Akutan, AlaskaFri, Nov 17, 12:07 AM AKST · 1046 days ago · 64 km deep · 63 km away
30. 2.6109 km ESE of Akutan, AlaskaFri, Nov 17, 12:50 AM AKST · 1046 days ago · 35 km deep · 91 km away
31. 2.197 km E of Akutan, AlaskaFri, Nov 17, 4:50 PM AKST · 1045 days ago · 63 km deep · 64 km away
32. 1.9Unimak Island region, AlaskaSat, Nov 18, 10:42 AM AKST · 1044 days ago · 26 km deep · 82 km away
33. 2.5113 km ESE of Akutan, AlaskaSat, Nov 18, 11:23 PM AKST · 1044 days ago · 35 km deep · 94 km away
34. 2.645 km WSW of False Pass, AlaskaSat, Nov 18, 11:54 PM AKST · 1044 days ago · 179 km deep · 28 km away
35. 3.3116 km S of False Pass, AlaskaSun, Nov 19, 6:40 AM AKST · 1044 days ago · 35 km deep · 82 km away
36. 2.023 km E of False Pass, AlaskaSun, Nov 19, 7:05 AM AKST · 1043 days ago · 91 km deep · 52 km away
37. 1.9108 km SSW of False Pass, AlaskaSun, Nov 19, 2:59 PM AKST · 1043 days ago · 16 km deep · 72 km away
38. 2.592 km SSW of False Pass, AlaskaMon, Nov 20, 12:40 AM AKST · 1043 days ago · 35 km deep · 55 km away
39. 2.029 km WSW of False Pass, AlaskaMon, Nov 20, 5:33 AM AKST · 1043 days ago · 33 km deep · 26 km away
40. 2.3Unimak Island region, AlaskaMon, Nov 20, 9:14 PM AKST · 1042 days ago · 13 km deep · 62 km away
41. 3.050 km W of False Pass, AlaskaTue, Nov 21, 8:55 PM AKST · 1041 days ago · 190 km deep · 54 km away
42. 2.490 km S of False Pass, AlaskaWed, Nov 22, 8:34 AM AKST · 1040 days ago · 26 km deep · 64 km away
43. 2.643 km SSE of False Pass, AlaskaWed, Nov 22, 12:40 PM AKST · 1040 days ago · 11 km deep · 28 km away
44. 2.130 km S of False Pass, AlaskaWed, Nov 22, 2:07 PM AKST · 1040 days ago · 9 km deep · 23 km away
45. 2.246 km WSW of False Pass, AlaskaThu, Nov 23, 12:48 AM AKST · 1040 days ago · 5 km deep · 35 km away
46. 1.746 km WSW of False Pass, AlaskaThu, Nov 23, 1:54 AM AKST · 1040 days ago · 7 km deep · 35 km away
47. 3.487 km SSE of False Pass, AlaskaThu, Nov 23, 8:34 PM AKST · 1039 days ago · 35 km deep · 70 km away
48. 2.6103 km ESE of Akutan, AlaskaThu, Nov 23, 9:10 PM AKST · 1039 days ago · 19 km deep · 93 km away
49. 2.9101 km SSE of False Pass, AlaskaFri, Nov 24, 1:30 AM AKST · 1039 days ago · 10 km deep · 82 km away
50. 1.5Unimak Island region, AlaskaFri, Nov 24, 11:47 PM AKST · 1038 days ago · 12 km deep · 32 km away
51. 3.587 km SSE of False Pass, AlaskaSat, Nov 25, 10:43 AM AKST · 1037 days ago · 35 km deep · 68 km away
52. 1.847 km SSW of King Cove, AlaskaSat, Nov 25, 7:02 PM AKST · 1037 days ago · 15 km deep · 66 km away
53. 2.147 km S of King Cove, AlaskaMon, Nov 27, 12:18 AM AKST · 1036 days ago · 55 km deep · 84 km away
54. 2.553 km SSE of False Pass, AlaskaMon, Nov 27, 5:10 PM AKST · 1035 days ago · 59 km deep · 44 km away
55. 1.646 km W of False Pass, AlaskaTue, Nov 28, 9:04 AM AKST · 1034 days ago · -1 km deep · 39 km away
56. 2.142 km SSW of False Pass, AlaskaTue, Nov 28, 1:42 PM AKST · 1034 days ago · 69 km deep · 10 km away
57. 2.170 km E of Akutan, AlaskaTue, Nov 28, 2:13 PM AKST · 1034 days ago · 72 km deep · 82 km away
58. 1.632 km SSE of False Pass, AlaskaTue, Nov 28, 2:47 PM AKST · 1034 days ago · 11 km deep · 24 km away
59. 2.599 km S of False Pass, AlaskaTue, Nov 28, 4:25 PM AKST · 1034 days ago · 35 km deep · 66 km away
60. 2.0100 km SSW of False Pass, AlaskaTue, Nov 28, 4:51 PM AKST · 1034 days ago · 35 km deep · 63 km away

The first 60 of 98.

Before

1. 2.290 km E of Akutan, AlaskaFri, Oct 20, 4:33 AM AKDT · 1074 days ago · 79 km deep · 62 km away
2. 3.695 km S of False Pass, AlaskaThu, Oct 19, 9:53 AM AKDT · 1074 days ago · 35 km deep · 62 km away
3. 2.413 km SSW of False Pass, AlaskaWed, Oct 18, 8:20 PM AKDT · 1075 days ago · 5 km deep · 24 km away
4. 3.130 km S of False Pass, AlaskaWed, Oct 18, 7:31 PM AKDT · 1075 days ago · 79 km deep · 13 km away
5. 1.812 km SW of False Pass, AlaskaWed, Oct 18, 7:27 PM AKDT · 1075 days ago · 6 km deep · 25 km away
6. 2.2Unimak Island region, AlaskaWed, Oct 18, 4:54 AM AKDT · 1076 days ago · 26 km deep · 86 km away
7. 3.067 km SE of False Pass, AlaskaSun, Oct 15, 6:35 PM AKDT · 1078 days ago · 48 km deep · 68 km away
8. 1.984 km S of King Cove, AlaskaSat, Oct 14, 2:34 PM AKDT · 1079 days ago · 5 km deep · 82 km away
9. 2.289 km SE of False Pass, AlaskaSat, Oct 14, 2:23 PM AKDT · 1079 days ago · 8 km deep · 82 km away
10. 1.9115 km S of False Pass, AlaskaWed, Oct 11, 6:11 PM AKDT · 1082 days ago · 26 km deep · 82 km away
11. 1.892 km SSW of False Pass, AlaskaWed, Oct 11, 11:59 AM AKDT · 1082 days ago · 26 km deep · 55 km away
12. 1.744 km ESE of False Pass, AlaskaWed, Oct 11, 1:04 AM AKDT · 1083 days ago · 13 km deep · 61 km away
13. 2.654 km ESE of False Pass, AlaskaTue, Oct 10, 9:56 PM AKDT · 1083 days ago · 9 km deep · 62 km away
14. 2.068 km SE of False Pass, AlaskaTue, Oct 10, 9:40 PM AKDT · 1083 days ago · 15 km deep · 64 km away
15. 3.452 km ESE of False Pass, AlaskaTue, Oct 10, 6:14 AM AKDT · 1084 days ago · 12 km deep · 63 km away
16. 1.550 km WSW of False Pass, AlaskaTue, Oct 10, 2:15 AM AKDT · 1084 days ago · 2 km deep · 37 km away
17. 2.023 km WSW of King Cove, AlaskaSun, Oct 8, 7:06 PM AKDT · 1085 days ago · 90 km deep · 80 km away
18. 2.8103 km ESE of Akutan, AlaskaFri, Oct 6, 7:34 PM AKDT · 1087 days ago · 35 km deep · 89 km away
19. 2.2114 km ESE of Akutan, AlaskaWed, Oct 4, 5:33 PM AKDT · 1089 days ago · 41 km deep · 79 km away
20. 2.138 km WSW of False Pass, AlaskaWed, Oct 4, 7:17 AM AKDT · 1090 days ago · -1 km deep · 31 km away

From the USGS Earthquake Hazards Program and its partner networks, event av91118883. Read Mon, Sep 28, 2026, 3:15 AM UTC.