M3.3 earthquake 86 km S of False Pass, Alaska

Magnitude

3.3 (ml), minor

Local time

Thu, Jul 20, 2023, 4:13 AM AKDT

UTC

2023-07-20 12:13:23 UTC

Depth

35.0 km (21.7 mi), shallow

Epicenter

54.076° N, 163.423° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 3.2 km horizontally, 2.0 km in depth

Magnitude uncertainty

±0.09

Depth from

Operator assigned

Station coverage gap

183°, poorly surrounded by stations

Stations used

30

• King Cove, AlaskaPopulation 1,009. Forecast131 kmSSW

After

1. 2.571 km SSW of False Pass, AlaskaThu, Jul 20, 8:27 AM AKDT · 1165 days ago · 80 km deep · 44 km away
2. 1.991 km E of Akutan, AlaskaThu, Jul 20, 11:02 AM AKDT · 1165 days ago · 31 km deep · 63 km away
3. 2.1112 km S of False Pass, AlaskaThu, Jul 20, 11:48 AM AKDT · 1165 days ago · 26 km deep · 26 km away
4. 2.1138 km ESE of Akutan, AlaskaThu, Jul 20, 5:51 PM AKDT · 1165 days ago · 6 km deep · 67 km away
5. 2.1116 km S of False Pass, AlaskaFri, Jul 21, 4:17 AM AKDT · 1164 days ago · 29 km deep · 30 km away
6. 1.656 km SSW of King Cove, AlaskaFri, Jul 21, 5:37 AM AKDT · 1164 days ago · 18 km deep · 78 km away
7. 1.987 km SE of Akutan, AlaskaFri, Jul 21, 6:57 AM AKDT · 1164 days ago · 26 km deep · 96 km away
8. 2.8110 km SSE of King Cove, AlaskaFri, Jul 21, 5:05 PM AKDT · 1164 days ago · 10 km deep · 96 km away
9. 3.2101 km SSW of False Pass, AlaskaFri, Jul 21, 5:25 PM AKDT · 1164 days ago · 35 km deep · 37 km away
10. 1.9Unimak Island region, AlaskaFri, Jul 21, 5:31 PM AKDT · 1164 days ago · 84 km deep · 68 km away
11. 2.7171 km S of False Pass, AlaskaFri, Jul 21, 9:12 PM AKDT · 1164 days ago · 26 km deep · 85 km away
12. 1.983 km S of King Cove, AlaskaFri, Jul 21, 11:21 PM AKDT · 1164 days ago · 7 km deep · 69 km away
13. 2.036 km SSW of False Pass, AlaskaSat, Jul 22, 4:07 AM AKDT · 1163 days ago · 75 km deep · 52 km away
14. 2.793 km ESE of Akutan, AlaskaSat, Jul 22, 9:59 PM AKDT · 1163 days ago · 35 km deep · 83 km away
15. 2.8118 km ESE of Akutan, AlaskaSun, Jul 23, 11:21 AM AKDT · 1162 days ago · 34 km deep · 54 km away
16. 1.757 km S of King Cove, AlaskaSun, Jul 23, 2:03 PM AKDT · 1162 days ago · 13 km deep · 87 km away
17. 1.826 km SSE of False Pass, AlaskaSun, Jul 23, 9:34 PM AKDT · 1162 days ago · 12 km deep · 61 km away
18. 1.634 km SSW of False Pass, AlaskaSun, Jul 23, 10:22 PM AKDT · 1162 days ago · 72 km deep · 54 km away
19. 1.656 km SSW of King Cove, AlaskaMon, Jul 24, 12:09 AM AKDT · 1162 days ago · 79 km deep · 80 km away
20. 1.653 km S of King Cove, AlaskaMon, Jul 24, 2:52 AM AKDT · 1161 days ago · 13 km deep · 86 km away
21. 1.985 km S of False Pass, AlaskaMon, Jul 24, 6:28 AM AKDT · 1161 days ago · 20 km deep · 7 km away
22. 1.951 km S of False Pass, AlaskaMon, Jul 24, 7:31 AM AKDT · 1161 days ago · 13 km deep · 35 km away
23. 2.9163 km S of False Pass, AlaskaMon, Jul 24, 11:49 AM AKDT · 1161 days ago · 35 km deep · 78 km away
24. 2.298 km S of False Pass, AlaskaTue, Jul 25, 12:25 AM AKDT · 1161 days ago · 26 km deep · 16 km away
25. 2.084 km ENE of Akutan, AlaskaTue, Jul 25, 11:12 AM AKDT · 1160 days ago · 73 km deep · 77 km away
26. 2.2156 km S of False Pass, AlaskaTue, Jul 25, 10:23 PM AKDT · 1160 days ago · 26 km deep · 70 km away
27. 3.6115 km SSW of False Pass, AlaskaWed, Jul 26, 6:03 AM AKDT · 1159 days ago · 35 km deep · 42 km away
28. 2.5139 km SSE of False Pass, AlaskaWed, Jul 26, 10:04 PM AKDT · 1159 days ago · 29 km deep · 59 km away
29. 3.3124 km SSE of False Pass, AlaskaThu, Jul 27, 1:53 AM AKDT · 1158 days ago · 32 km deep · 61 km away
30. 1.821 km SSW of False Pass, AlaskaFri, Jul 28, 2:04 AM AKDT · 1157 days ago · 13 km deep · 66 km away
31. 1.979 km ESE of Akutan, AlaskaFri, Jul 28, 5:41 AM AKDT · 1157 days ago · 31 km deep · 77 km away
32. 1.8Alaska PeninsulaFri, Jul 28, 6:23 PM AKDT · 1157 days ago · 59 km deep · 94 km away
33. 2.685 km SE of False Pass, AlaskaFri, Jul 28, 9:43 PM AKDT · 1157 days ago · 18 km deep · 55 km away
34. 2.046 km ESE of False Pass, AlaskaSat, Jul 29, 3:40 PM AKDT · 1156 days ago · 9 km deep · 82 km away
35. 1.987 km SW of False Pass, AlaskaSat, Jul 29, 4:24 PM AKDT · 1156 days ago · 77 km deep · 57 km away
36. 1.646 km SSW of False Pass, AlaskaSun, Jul 30, 3:48 AM AKDT · 1155 days ago · 25 km deep · 42 km away
37. 1.844 km SE of False Pass, AlaskaSun, Jul 30, 9:41 AM AKDT · 1155 days ago · 67 km deep · 66 km away
38. 2.1131 km S of False Pass, AlaskaSun, Jul 30, 1:10 PM AKDT · 1155 days ago · 26 km deep · 45 km away
39. 1.776 km SSE of False Pass, AlaskaMon, Jul 31, 2:43 AM AKDT · 1154 days ago · 7 km deep · 49 km away
40. 1.899 km S of False Pass, AlaskaMon, Jul 31, 9:42 AM AKDT · 1154 days ago · 26 km deep · 19 km away
41. 1.683 km S of King Cove, AlaskaMon, Jul 31, 11:21 AM AKDT · 1154 days ago · 14 km deep · 79 km away
42. 1.590 km E of Akutan, AlaskaMon, Jul 31, 8:47 PM AKDT · 1154 days ago · 26 km deep · 64 km away
43. 1.995 km SSW of False Pass, AlaskaTue, Aug 1, 7:10 AM AKDT · 1153 days ago · 26 km deep · 29 km away
44. 4.5139 km SE of Akutan, AlaskaTue, Aug 1, 11:40 AM AKDT · 1153 days ago · 7 km deep · 94 km away
45. 2.8137 km SE of Akutan, AlaskaTue, Aug 1, 2:54 PM AKDT · 1153 days ago · 35 km deep · 99 km away
46. 2.7136 km SE of Akutan, AlaskaTue, Aug 1, 4:28 PM AKDT · 1153 days ago · 35 km deep · 95 km away
47. 3.0134 km SE of Akutan, AlaskaTue, Aug 1, 6:19 PM AKDT · 1153 days ago · 35 km deep · 94 km away
48. 2.1109 km ESE of Akutan, AlaskaTue, Aug 1, 7:00 PM AKDT · 1153 days ago · 38 km deep · 77 km away
49. 2.193 km SE of Akutan, AlaskaWed, Aug 2, 9:41 AM AKDT · 1152 days ago · 19 km deep · 94 km away
50. 2.597 km S of False Pass, AlaskaWed, Aug 2, 8:46 PM AKDT · 1152 days ago · 35 km deep · 16 km away
51. 2.763 km S of False Pass, AlaskaThu, Aug 3, 6:08 AM AKDT · 1151 days ago · 72 km deep · 26 km away
52. 1.995 km SSW of False Pass, AlaskaThu, Aug 3, 8:42 AM AKDT · 1151 days ago · 20 km deep · 42 km away
53. 1.720 km SSW of False Pass, AlaskaSat, Aug 5, 10:03 AM AKDT · 1149 days ago · 11 km deep · 68 km away
54. 1.933 km S of False Pass, AlaskaSat, Aug 5, 5:42 PM AKDT · 1149 days ago · 70 km deep · 54 km away
55. 2.035 km E of False Pass, AlaskaSat, Aug 5, 5:49 PM AKDT · 1149 days ago · 73 km deep · 89 km away
56. 2.432 km W of False Pass, AlaskaSun, Aug 6, 10:14 AM AKDT · 1148 days ago · 147 km deep · 91 km away
57. 2.1108 km S of False Pass, AlaskaSun, Aug 6, 6:17 PM AKDT · 1148 days ago · 25 km deep · 26 km away
58. 2.194 km S of False Pass, AlaskaSun, Aug 6, 8:08 PM AKDT · 1148 days ago · 18 km deep · 20 km away
59. 2.0114 km S of False Pass, AlaskaSun, Aug 6, 11:01 PM AKDT · 1148 days ago · 25 km deep · 28 km away
60. 2.0111 km SSW of False Pass, AlaskaMon, Aug 7, 4:28 AM AKDT · 1147 days ago · 26 km deep · 40 km away

The first 60 of 169.

Before

1. 2.695 km S of False Pass, AlaskaWed, Jul 19, 5:00 PM AKDT · 1166 days ago · 49 km deep · 13 km away
2. 3.0Unimak Island region, AlaskaWed, Jul 19, 1:20 PM AKDT · 1166 days ago · 10 km deep · 67 km away
3. 3.273 km S of King Cove, AlaskaWed, Jul 19, 7:58 AM AKDT · 1166 days ago · 10 km deep · 71 km away
4. 2.2118 km S of False Pass, AlaskaWed, Jul 19, 7:39 AM AKDT · 1166 days ago · 28 km deep · 31 km away
5. 3.2154 km S of False Pass, AlaskaWed, Jul 19, 6:00 AM AKDT · 1166 days ago · 20 km deep · 68 km away
6. 2.3Unimak Island region, AlaskaWed, Jul 19, 2:37 AM AKDT · 1166 days ago · 30 km deep · 35 km away
7. 2.244 km SE of False Pass, AlaskaWed, Jul 19, 2:08 AM AKDT · 1166 days ago · 95 km deep · 70 km away
8. 2.2120 km S of False Pass, AlaskaTue, Jul 18, 12:47 AM AKDT · 1168 days ago · 24 km deep · 33 km away
9. 3.5112 km S of False Pass, AlaskaMon, Jul 17, 5:47 PM AKDT · 1168 days ago · 39 km deep · 26 km away
10. 4.8113 km S of False Pass, AlaskaMon, Jul 17, 1:59 PM AKDT · 1168 days ago · 48 km deep · 28 km away · felt by 1 · tsunami flag
11. 2.676 km SE of False Pass, AlaskaMon, Jul 17, 3:06 AM AKDT · 1168 days ago · 35 km deep · 56 km away
12. 2.6156 km S of False Pass, AlaskaSun, Jul 16, 8:47 PM AKDT · 1169 days ago · 5 km deep · 70 km away
13. 3.491 km ESE of Akutan, AlaskaSun, Jul 16, 10:21 AM AKDT · 1169 days ago · 31 km deep · 88 km away
14. 2.5138 km SE of Akutan, AlaskaSun, Jul 16, 9:55 AM AKDT · 1169 days ago · 27 km deep · 95 km away
15. 2.6Alaska PeninsulaSat, Jul 15, 1:27 AM AKDT · 1171 days ago · 35 km deep · 60 km away
16. 1.895 km SE of Akutan, AlaskaFri, Jul 14, 11:38 AM AKDT · 1171 days ago · 19 km deep · 94 km away
17. 2.792 km SSE of False Pass, AlaskaThu, Jul 13, 11:37 PM AKDT · 1172 days ago · 27 km deep · 23 km away
18. 2.693 km S of False Pass, AlaskaThu, Jul 13, 11:37 PM AKDT · 1172 days ago · 20 km deep · 16 km away
19. 2.299 km S of King Cove, AlaskaThu, Jul 13, 9:23 AM AKDT · 1172 days ago · 26 km deep · 71 km away
20. 1.7101 km ESE of Akutan, AlaskaWed, Jul 12, 1:58 PM AKDT · 1173 days ago · 17 km deep · 62 km away

From the USGS Earthquake Hazards Program and its partner networks, event us6000kw9w (also filed as ak02398m8sm4). Read Sun, Sep 27, 2026, 9:07 PM UTC.