M2.5 earthquake 85 km S of False Pass, Alaska

Magnitude

2.5 (ml), micro

Local time

Thu, Sep 21, 2023, 9:12 AM AKDT

UTC

2023-09-21 17:12:55 UTC

Depth

35.0 km (21.7 mi), shallow

Epicenter

54.084° N, 163.468° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 3.3 km horizontally, 2.0 km in depth

Magnitude uncertainty

±0.10

Depth from

Operator assigned

Station coverage gap

210°, poorly surrounded by stations

Stations used

19

• King Cove, AlaskaPopulation 1,009. Forecast132 kmSW

After

1. 2.7116 km SSW of False Pass, AlaskaFri, Sep 22, 4:11 AM AKDT · 1102 days ago · 35 km deep · 42 km away
2. 1.913 km SW of False Pass, AlaskaFri, Sep 22, 12:20 PM AKDT · 1101 days ago · 2 km deep · 77 km away
3. 1.7Unimak Island region, AlaskaFri, Sep 22, 6:39 PM AKDT · 1101 days ago · 11 km deep · 77 km away
4. 2.1108 km SSW of False Pass, AlaskaFri, Sep 22, 10:48 PM AKDT · 1101 days ago · 31 km deep · 28 km away
5. 1.850 km ESE of False Pass, AlaskaSat, Sep 23, 1:50 AM AKDT · 1101 days ago · 65 km deep · 81 km away
6. 2.5Alaska PeninsulaSat, Sep 23, 1:41 PM AKDT · 1100 days ago · 10 km deep · 76 km away
7. 1.889 km SSE of False Pass, AlaskaMon, Sep 25, 10:04 AM AKDT · 1098 days ago · 7 km deep · 23 km away
8. 2.839 km S of False Pass, AlaskaMon, Sep 25, 5:52 PM AKDT · 1098 days ago · 64 km deep · 47 km away
9. 2.671 km ESE of Akutan, AlaskaMon, Sep 25, 7:26 PM AKDT · 1098 days ago · 35 km deep · 90 km away
10. 2.0103 km S of False Pass, AlaskaMon, Sep 25, 8:59 PM AKDT · 1098 days ago · 28 km deep · 21 km away
11. 2.072 km ESE of Akutan, AlaskaTue, Sep 26, 12:23 AM AKDT · 1098 days ago · 58 km deep · 84 km away
12. 1.6104 km ESE of Akutan, AlaskaTue, Sep 26, 10:11 PM AKDT · 1097 days ago · 25 km deep · 63 km away
13. 1.7103 km S of False Pass, AlaskaTue, Sep 26, 11:38 PM AKDT · 1097 days ago · 23 km deep · 18 km away
14. 2.385 km SE of Akutan, AlaskaWed, Sep 27, 8:25 PM AKDT · 1096 days ago · 25 km deep · 93 km away
15. 2.0100 km E of Akutan, AlaskaThu, Sep 28, 2:34 AM AKDT · 1096 days ago · 54 km deep · 50 km away
16. 2.092 km S of False Pass, AlaskaThu, Sep 28, 11:28 PM AKDT · 1095 days ago · 26 km deep · 11 km away
17. 2.644 km SSE of False Pass, AlaskaSat, Sep 30, 3:36 AM AKDT · 1094 days ago · 68 km deep · 51 km away
18. 1.513 km SW of False Pass, AlaskaSat, Sep 30, 4:39 AM AKDT · 1094 days ago · 6 km deep · 77 km away
19. 2.185 km SE of False Pass, AlaskaSat, Sep 30, 10:20 AM AKDT · 1093 days ago · 7 km deep · 65 km away
20. 2.290 km SSW of False Pass, AlaskaSat, Sep 30, 6:52 PM AKDT · 1093 days ago · 20 km deep · 17 km away
21. 2.790 km S of King Cove, AlaskaSun, Oct 1, 6:32 AM AKDT · 1092 days ago · 35 km deep · 79 km away
22. 2.275 km SSE of False Pass, AlaskaSun, Oct 1, 10:49 PM AKDT · 1092 days ago · 19 km deep · 51 km away
23. 2.590 km S of False Pass, AlaskaMon, Oct 2, 1:57 AM AKDT · 1092 days ago · 35 km deep · 14 km away
24. 2.397 km E of Akutan, AlaskaMon, Oct 2, 3:24 AM AKDT · 1092 days ago · 78 km deep · 54 km away
25. 3.0161 km S of False Pass, AlaskaMon, Oct 2, 5:45 PM AKDT · 1091 days ago · 27 km deep · 76 km away
26. 2.238 km WSW of False Pass, AlaskaTue, Oct 3, 2:07 AM AKDT · 1091 days ago · 96 km deep · 72 km away
27. 1.6Unimak Island region, AlaskaTue, Oct 3, 8:07 AM AKDT · 1090 days ago · 1 km deep · 85 km away
28. 2.1Unimak Island region, AlaskaTue, Oct 3, 9:34 AM AKDT · 1090 days ago · 4 km deep · 81 km away
29. 2.125 km SSE of False Pass, AlaskaTue, Oct 3, 11:48 AM AKDT · 1090 days ago · 9 km deep · 62 km away
30. 2.138 km WSW of False Pass, AlaskaTue, Oct 3, 4:22 PM AKDT · 1090 days ago · 5 km deep · 80 km away
31. 2.233 km SSE of False Pass, AlaskaTue, Oct 3, 6:03 PM AKDT · 1090 days ago · 73 km deep · 56 km away
32. 1.6Unimak Island region, AlaskaWed, Oct 4, 4:46 AM AKDT · 1090 days ago · 0 km deep · 85 km away
33. 1.938 km WSW of False Pass, AlaskaWed, Oct 4, 6:22 AM AKDT · 1089 days ago · -1 km deep · 82 km away
34. 2.038 km WSW of False Pass, AlaskaWed, Oct 4, 7:15 AM AKDT · 1089 days ago · 0 km deep · 81 km away
35. 2.138 km WSW of False Pass, AlaskaWed, Oct 4, 7:17 AM AKDT · 1089 days ago · -1 km deep · 82 km away
36. 2.2114 km ESE of Akutan, AlaskaWed, Oct 4, 5:33 PM AKDT · 1089 days ago · 41 km deep · 46 km away
37. 2.8103 km ESE of Akutan, AlaskaFri, Oct 6, 7:34 PM AKDT · 1087 days ago · 35 km deep · 60 km away
38. 2.982 km SE of Akutan, AlaskaSun, Oct 8, 7:36 PM AKDT · 1085 days ago · 35 km deep · 100 km away
39. 1.550 km WSW of False Pass, AlaskaTue, Oct 10, 2:15 AM AKDT · 1084 days ago · 2 km deep · 85 km away
40. 3.452 km ESE of False Pass, AlaskaTue, Oct 10, 6:14 AM AKDT · 1083 days ago · 12 km deep · 78 km away
41. 2.068 km SE of False Pass, AlaskaTue, Oct 10, 9:40 PM AKDT · 1083 days ago · 15 km deep · 59 km away
42. 2.654 km ESE of False Pass, AlaskaTue, Oct 10, 9:56 PM AKDT · 1083 days ago · 9 km deep · 75 km away
43. 1.744 km ESE of False Pass, AlaskaWed, Oct 11, 1:04 AM AKDT · 1083 days ago · 13 km deep · 83 km away
44. 1.892 km SSW of False Pass, AlaskaWed, Oct 11, 11:59 AM AKDT · 1082 days ago · 26 km deep · 47 km away
45. 1.9115 km S of False Pass, AlaskaWed, Oct 11, 6:11 PM AKDT · 1082 days ago · 26 km deep · 30 km away
46. 2.289 km SE of False Pass, AlaskaSat, Oct 14, 2:23 PM AKDT · 1079 days ago · 8 km deep · 65 km away
47. 1.984 km S of King Cove, AlaskaSat, Oct 14, 2:34 PM AKDT · 1079 days ago · 5 km deep · 69 km away
48. 2.8159 km S of False Pass, AlaskaSat, Oct 14, 3:04 PM AKDT · 1079 days ago · 10 km deep · 74 km away
49. 3.067 km SE of False Pass, AlaskaSun, Oct 15, 6:35 PM AKDT · 1078 days ago · 48 km deep · 68 km away
50. 3.7103 km ESE of Akutan, AlaskaTue, Oct 17, 9:05 AM AKDT · 1076 days ago · 35 km deep · 75 km away
51. 2.2Unimak Island region, AlaskaWed, Oct 18, 4:54 AM AKDT · 1076 days ago · 26 km deep · 70 km away
52. 2.2102 km SE of Akutan, AlaskaWed, Oct 18, 9:55 AM AKDT · 1075 days ago · 25 km deep · 91 km away
53. 1.812 km SW of False Pass, AlaskaWed, Oct 18, 7:27 PM AKDT · 1075 days ago · 6 km deep · 76 km away
54. 3.130 km S of False Pass, AlaskaWed, Oct 18, 7:31 PM AKDT · 1075 days ago · 79 km deep · 56 km away
55. 2.413 km SSW of False Pass, AlaskaWed, Oct 18, 8:20 PM AKDT · 1075 days ago · 5 km deep · 74 km away
56. 2.8122 km SSE of False Pass, AlaskaThu, Oct 19, 6:31 AM AKDT · 1074 days ago · 35 km deep · 54 km away
57. 3.695 km S of False Pass, AlaskaThu, Oct 19, 9:53 AM AKDT · 1074 days ago · 35 km deep · 9 km away
58. 2.290 km E of Akutan, AlaskaFri, Oct 20, 4:33 AM AKDT · 1074 days ago · 79 km deep · 61 km away
59. 1.837 km SSW of False Pass, AlaskaSat, Oct 21, 6:21 AM AKDT · 1072 days ago · 9 km deep · 54 km away
60. 2.3110 km ESE of Akutan, AlaskaSat, Oct 21, 10:14 AM AKDT · 1072 days ago · 26 km deep · 62 km away

The first 60 of 108.

Before

1. 1.546 km WSW of False Pass, AlaskaThu, Sep 21, 3:12 AM AKDT · 1103 days ago · 2 km deep · 84 km away
2. 1.544 km WSW of False Pass, AlaskaTue, Sep 19, 7:27 PM AKDT · 1104 days ago · 6 km deep · 84 km away
3. 1.650 km WSW of False Pass, AlaskaTue, Sep 19, 7:17 PM AKDT · 1104 days ago · 5 km deep · 83 km away
4. 2.048 km WSW of False Pass, AlaskaTue, Sep 19, 2:32 AM AKDT · 1105 days ago · 4 km deep · 87 km away
5. 2.275 km SE of False Pass, AlaskaTue, Sep 19, 1:48 AM AKDT · 1105 days ago · 27 km deep · 53 km away
6. 2.191 km S of False Pass, AlaskaMon, Sep 18, 11:04 AM AKDT · 1105 days ago · 16 km deep · 21 km away
7. 2.1101 km ESE of Akutan, AlaskaSun, Sep 17, 8:07 AM AKDT · 1106 days ago · 34 km deep · 78 km away
8. 2.7109 km SSW of False Pass, AlaskaSun, Sep 17, 12:24 AM AKDT · 1107 days ago · 35 km deep · 41 km away
9. 2.497 km S of False Pass, AlaskaSat, Sep 16, 9:15 PM AKDT · 1107 days ago · 25 km deep · 11 km away
10. 1.647 km WSW of False Pass, AlaskaFri, Sep 15, 2:23 PM AKDT · 1108 days ago · 1 km deep · 85 km away
11. 2.691 km SE of Akutan, AlaskaFri, Sep 15, 12:44 PM AKDT · 1108 days ago · 35 km deep · 90 km away
12. 2.891 km SE of Akutan, AlaskaFri, Sep 15, 10:34 AM AKDT · 1108 days ago · 35 km deep · 91 km away
13. 3.395 km SE of Akutan, AlaskaFri, Sep 15, 5:07 AM AKDT · 1109 days ago · 35 km deep · 88 km away
14. 2.1110 km ESE of Akutan, AlaskaFri, Sep 15, 3:30 AM AKDT · 1109 days ago · 21 km deep · 52 km away
15. 2.1Unimak Island region, AlaskaThu, Sep 14, 11:35 PM AKDT · 1109 days ago · 26 km deep · 14 km away
16. 2.665 km ESE of Akutan, AlaskaThu, Sep 14, 8:11 PM AKDT · 1109 days ago · 65 km deep · 89 km away
17. 2.296 km ESE of Akutan, AlaskaThu, Sep 14, 8:53 AM AKDT · 1109 days ago · 18 km deep · 83 km away
18. 2.794 km ESE of Akutan, AlaskaThu, Sep 14, 8:36 AM AKDT · 1109 days ago · 35 km deep · 86 km away
19. 2.7109 km SSW of False Pass, AlaskaWed, Sep 13, 2:40 PM AKDT · 1110 days ago · 35 km deep · 39 km away
20. 2.0113 km ESE of Akutan, AlaskaWed, Sep 13, 1:51 PM AKDT · 1110 days ago · 26 km deep · 55 km away

From the USGS Earthquake Hazards Program and its partner networks, event us6000lcnf (also filed as ak023c4w2ok8). Read Mon, Sep 28, 2026, 12:55 AM UTC.