M1.6 earthquake 50 km WSW of False Pass, Alaska

Magnitude

1.6 (ml), micro

Local time

Tue, Sep 19, 2023, 7:17 PM AKDT

UTC

2023-09-20 03:17:24 UTC

Depth

4.6 km (2.9 mi), shallow

Epicenter

54.718° N, 164.153° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.6 km horizontally, 1.4 km in depth

Magnitude uncertainty

±0.31

Depth from

From location

Station coverage gap

208°, poorly surrounded by stations

Stations used

6

• King Cove, AlaskaPopulation 1,009. Forecast123 kmWSW

After

1. 1.544 km WSW of False Pass, AlaskaTue, Sep 19, 7:27 PM AKDT · 1104 days ago · 6 km deep · 6 km away
2. 1.546 km WSW of False Pass, AlaskaThu, Sep 21, 3:12 AM AKDT · 1103 days ago · 2 km deep · 3 km away
3. 2.585 km S of False Pass, AlaskaThu, Sep 21, 9:12 AM AKDT · 1102 days ago · 35 km deep · 83 km away
4. 2.7116 km SSW of False Pass, AlaskaFri, Sep 22, 4:11 AM AKDT · 1102 days ago · 35 km deep · 96 km away
5. 1.913 km SW of False Pass, AlaskaFri, Sep 22, 12:20 PM AKDT · 1101 days ago · 2 km deep · 39 km away
6. 1.7Unimak Island region, AlaskaFri, Sep 22, 6:39 PM AKDT · 1101 days ago · 11 km deep · 38 km away
7. 2.1108 km SSW of False Pass, AlaskaFri, Sep 22, 10:48 PM AKDT · 1101 days ago · 31 km deep · 94 km away
8. 1.850 km ESE of False Pass, AlaskaSat, Sep 23, 1:50 AM AKDT · 1101 days ago · 65 km deep · 93 km away
9. 1.889 km SSE of False Pass, AlaskaMon, Sep 25, 10:04 AM AKDT · 1098 days ago · 7 km deep · 99 km away
10. 2.839 km S of False Pass, AlaskaMon, Sep 25, 5:52 PM AKDT · 1098 days ago · 64 km deep · 56 km away
11. 2.0103 km S of False Pass, AlaskaMon, Sep 25, 8:59 PM AKDT · 1098 days ago · 28 km deep · 91 km away
12. 2.072 km ESE of Akutan, AlaskaTue, Sep 26, 12:23 AM AKDT · 1098 days ago · 58 km deep · 95 km away
13. 1.7103 km S of False Pass, AlaskaTue, Sep 26, 11:38 PM AKDT · 1097 days ago · 23 km deep · 100 km away
14. 1.842 km E of Akutan, AlaskaWed, Sep 27, 7:29 PM AKDT · 1096 days ago · 74 km deep · 86 km away
15. 2.0100 km E of Akutan, AlaskaThu, Sep 28, 2:34 AM AKDT · 1096 days ago · 54 km deep · 70 km away
16. 2.092 km S of False Pass, AlaskaThu, Sep 28, 11:28 PM AKDT · 1095 days ago · 26 km deep · 84 km away
17. 2.644 km SSE of False Pass, AlaskaSat, Sep 30, 3:36 AM AKDT · 1094 days ago · 68 km deep · 71 km away
18. 1.513 km SW of False Pass, AlaskaSat, Sep 30, 4:39 AM AKDT · 1094 days ago · 6 km deep · 38 km away
19. 2.290 km SSW of False Pass, AlaskaSat, Sep 30, 6:52 PM AKDT · 1093 days ago · 20 km deep · 78 km away
20. 2.590 km S of False Pass, AlaskaMon, Oct 2, 1:57 AM AKDT · 1092 days ago · 35 km deep · 80 km away
21. 2.397 km E of Akutan, AlaskaMon, Oct 2, 3:24 AM AKDT · 1092 days ago · 78 km deep · 75 km away
22. 2.238 km WSW of False Pass, AlaskaTue, Oct 3, 2:07 AM AKDT · 1091 days ago · 96 km deep · 15 km away
23. 1.6Unimak Island region, AlaskaTue, Oct 3, 8:07 AM AKDT · 1090 days ago · 1 km deep · 3 km away
24. 2.1Unimak Island region, AlaskaTue, Oct 3, 9:34 AM AKDT · 1090 days ago · 4 km deep · 11 km away
25. 2.125 km SSE of False Pass, AlaskaTue, Oct 3, 11:48 AM AKDT · 1090 days ago · 9 km deep · 55 km away
26. 2.138 km WSW of False Pass, AlaskaTue, Oct 3, 4:22 PM AKDT · 1090 days ago · 5 km deep · 12 km away
27. 2.233 km SSE of False Pass, AlaskaTue, Oct 3, 6:03 PM AKDT · 1090 days ago · 73 km deep · 61 km away
28. 1.6Unimak Island region, AlaskaWed, Oct 4, 4:46 AM AKDT · 1090 days ago · 0 km deep · 2 km away
29. 1.938 km WSW of False Pass, AlaskaWed, Oct 4, 6:22 AM AKDT · 1089 days ago · -1 km deep · 12 km away
30. 2.038 km WSW of False Pass, AlaskaWed, Oct 4, 7:15 AM AKDT · 1089 days ago · 0 km deep · 12 km away
31. 2.138 km WSW of False Pass, AlaskaWed, Oct 4, 7:17 AM AKDT · 1089 days ago · -1 km deep · 12 km away
32. 2.2114 km ESE of Akutan, AlaskaWed, Oct 4, 5:33 PM AKDT · 1089 days ago · 41 km deep · 93 km away
33. 2.8103 km ESE of Akutan, AlaskaFri, Oct 6, 7:34 PM AKDT · 1087 days ago · 35 km deep · 98 km away
34. 2.023 km WSW of King Cove, AlaskaSun, Oct 8, 7:06 PM AKDT · 1085 days ago · 90 km deep · 100 km away
35. 1.550 km WSW of False Pass, AlaskaTue, Oct 10, 2:15 AM AKDT · 1084 days ago · 2 km deep · 1 km away
36. 3.452 km ESE of False Pass, AlaskaTue, Oct 10, 6:14 AM AKDT · 1083 days ago · 12 km deep · 94 km away
37. 2.068 km SE of False Pass, AlaskaTue, Oct 10, 9:40 PM AKDT · 1083 days ago · 15 km deep · 100 km away
38. 2.654 km ESE of False Pass, AlaskaTue, Oct 10, 9:56 PM AKDT · 1083 days ago · 9 km deep · 95 km away
39. 1.744 km ESE of False Pass, AlaskaWed, Oct 11, 1:04 AM AKDT · 1083 days ago · 13 km deep · 89 km away
40. 1.892 km SSW of False Pass, AlaskaWed, Oct 11, 11:59 AM AKDT · 1082 days ago · 26 km deep · 62 km away
41. 2.2Unimak Island region, AlaskaWed, Oct 18, 4:54 AM AKDT · 1076 days ago · 26 km deep · 87 km away
42. 1.812 km SW of False Pass, AlaskaWed, Oct 18, 7:27 PM AKDT · 1075 days ago · 6 km deep · 40 km away
43. 3.130 km S of False Pass, AlaskaWed, Oct 18, 7:31 PM AKDT · 1075 days ago · 79 km deep · 47 km away
44. 2.413 km SSW of False Pass, AlaskaWed, Oct 18, 8:20 PM AKDT · 1075 days ago · 5 km deep · 42 km away
45. 3.695 km S of False Pass, AlaskaThu, Oct 19, 9:53 AM AKDT · 1074 days ago · 35 km deep · 90 km away
46. 2.290 km E of Akutan, AlaskaFri, Oct 20, 4:33 AM AKDT · 1074 days ago · 79 km deep · 60 km away
47. 1.837 km SSW of False Pass, AlaskaSat, Oct 21, 6:21 AM AKDT · 1072 days ago · 9 km deep · 36 km away
48. 1.939 km SSW of King Cove, AlaskaSat, Oct 28, 9:43 AM AKDT · 1065 days ago · 73 km deep · 98 km away
49. 2.196 km S of False Pass, AlaskaSun, Oct 29, 2:17 PM AKDT · 1064 days ago · 26 km deep · 87 km away
50. 2.127 km SSE of False Pass, AlaskaSun, Oct 29, 9:38 PM AKDT · 1064 days ago · 80 km deep · 56 km away
51. 2.1109 km SSW of False Pass, AlaskaThu, Nov 2, 3:23 PM AKDT · 1060 days ago · 35 km deep · 90 km away
52. 2.9109 km SSW of False Pass, AlaskaSat, Nov 4, 3:57 AM AKDT · 1059 days ago · 35 km deep · 88 km away
53. 1.546 km WSW of False Pass, AlaskaSat, Nov 4, 5:59 AM AKDT · 1058 days ago · 7 km deep · 4 km away
54. 1.9Unimak Island region, AlaskaSat, Nov 4, 12:01 PM AKDT · 1058 days ago · 9 km deep · 10 km away
55. 2.797 km ESE of Akutan, AlaskaSun, Nov 5, 7:31 PM AKST · 1057 days ago · 33 km deep · 95 km away
56. 3.071 km SSW of False Pass, AlaskaMon, Nov 6, 9:05 PM AKST · 1056 days ago · 73 km deep · 63 km away
57. 2.6110 km S of False Pass, AlaskaWed, Nov 8, 1:39 AM AKST · 1055 days ago · 35 km deep · 99 km away
58. 1.9108 km SSW of False Pass, AlaskaThu, Nov 9, 11:34 AM AKST · 1053 days ago · 20 km deep · 88 km away
59. 3.687 km SW of False Pass, AlaskaSat, Nov 11, 2:33 PM AKST · 1051 days ago · 79 km deep · 46 km away
60. 2.057 km ESE of Akutan, AlaskaMon, Nov 13, 12:02 PM AKST · 1049 days ago · 52 km deep · 96 km away

The first 60 of 67.

Before

1. 2.048 km WSW of False Pass, AlaskaTue, Sep 19, 2:32 AM AKDT · 1105 days ago · 4 km deep · 5 km away
2. 2.191 km S of False Pass, AlaskaMon, Sep 18, 11:04 AM AKDT · 1105 days ago · 16 km deep · 99 km away
3. 2.7109 km SSW of False Pass, AlaskaSun, Sep 17, 12:24 AM AKDT · 1107 days ago · 35 km deep · 87 km away
4. 2.497 km S of False Pass, AlaskaSat, Sep 16, 9:15 PM AKDT · 1107 days ago · 25 km deep · 92 km away
5. 1.647 km WSW of False Pass, AlaskaFri, Sep 15, 2:23 PM AKDT · 1108 days ago · 1 km deep · 4 km away
6. 2.1110 km ESE of Akutan, AlaskaFri, Sep 15, 3:30 AM AKDT · 1109 days ago · 21 km deep · 97 km away
7. 2.1Unimak Island region, AlaskaThu, Sep 14, 11:35 PM AKDT · 1109 days ago · 26 km deep · 82 km away
8. 2.665 km ESE of Akutan, AlaskaThu, Sep 14, 8:11 PM AKDT · 1109 days ago · 65 km deep · 92 km away
9. 2.7109 km SSW of False Pass, AlaskaWed, Sep 13, 2:40 PM AKDT · 1110 days ago · 35 km deep · 88 km away
10. 2.6107 km SSW of False Pass, AlaskaTue, Sep 12, 10:06 PM AKDT · 1111 days ago · 30 km deep · 85 km away
11. 1.9106 km SSW of False Pass, AlaskaTue, Sep 12, 6:39 PM AKDT · 1111 days ago · 26 km deep · 84 km away
12. 4.9108 km SSW of False Pass, AlaskaTue, Sep 12, 1:48 PM AKDT · 1111 days ago · 47 km deep · 84 km away
13. 2.748 km S of False Pass, AlaskaMon, Sep 11, 5:47 PM AKDT · 1112 days ago · 79 km deep · 64 km away
14. 2.156 km E of Akutan, AlaskaSun, Sep 10, 9:05 PM AKDT · 1113 days ago · 93 km deep · 77 km away
15. 2.281 km S of False Pass, AlaskaSun, Sep 10, 3:44 AM AKDT · 1114 days ago · 26 km deep · 88 km away
16. 3.239 km SW of False Pass, AlaskaSat, Sep 9, 9:30 AM AKDT · 1114 days ago · 94 km deep · 28 km away
17. 1.945 km S of False Pass, AlaskaFri, Sep 8, 7:04 AM AKDT · 1115 days ago · 68 km deep · 58 km away
18. 2.650 km SSW of False Pass, AlaskaTue, Sep 5, 1:37 PM AKDT · 1118 days ago · 84 km deep · 37 km away
19. 2.034 km SSW of False Pass, AlaskaTue, Sep 5, 4:13 AM AKDT · 1119 days ago · 76 km deep · 38 km away
20. 2.188 km ESE of Akutan, AlaskaSat, Sep 2, 9:06 AM AKDT · 1121 days ago · 41 km deep · 88 km away

From the USGS Earthquake Hazards Program and its partner networks, event av91116253. Read Mon, Sep 28, 2026, 1:02 AM UTC.