M2.5 earthquake 85 km NW of Karluk, Alaska

Magnitude

2.5 (ML, local (Richter)), micro

Magnitude from

AV

Local time

Fri, Apr 21, 2023, 3:54 PM AKDT

UTC

2023-04-21 23:54:19 UTC

Depth

0.9 km (0.6 mi), shallow

Epicenter

58.166° N, 155.351° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.3 km horizontally, 1.4 km in depth

Magnitude uncertainty

±0.08

Depth from

From location

Station coverage gap

187°, poorly surrounded by stations

Stations used

6

• Naknek, AlaskaPopulation 544. Forecast115 kmESE
• Anchorage, AlaskaPopulation 289,600. Forecast457 kmSW

After

1. 1.788 km W of Karluk, AlaskaFri, Apr 21, 7:52 PM AKDT · 1261 days ago · 7 km deep · 61 km away
2. 2.176 km SSE of Igiugig, AlaskaSat, Apr 22, 8:24 PM AKDT · 1260 days ago · 136 km deep · 65 km away
3. 2.598 km SSE of Kokhanok, AlaskaSun, Apr 23, 6:00 AM AKDT · 1260 days ago · 100 km deep · 74 km away
4. 1.885 km NW of Karluk, AlaskaSun, Apr 23, 12:46 PM AKDT · 1259 days ago · 2 km deep · 6 km away
5. 2.860 km N of Karluk, AlaskaSun, Apr 23, 5:50 PM AKDT · 1259 days ago · 80 km deep · 46 km away
6. 1.655 km ENE of Ugashik, AlaskaMon, Apr 24, 7:08 AM AKDT · 1259 days ago · 6 km deep · 90 km away
7. 1.827 km SW of Karluk, AlaskaMon, Apr 24, 11:13 AM AKDT · 1258 days ago · 53 km deep · 91 km away
8. 1.677 km SE of King Salmon, AlaskaMon, Apr 24, 12:19 PM AKDT · 1258 days ago · 10 km deep · 20 km away
9. 1.984 km NNW of Karluk, AlaskaTue, Apr 25, 9:39 AM AKDT · 1258 days ago · 103 km deep · 36 km away
10. 1.865 km W of Karluk, AlaskaTue, Apr 25, 5:29 PM AKDT · 1257 days ago · 88 km deep · 57 km away
11. 1.833 km NNE of Karluk, AlaskaTue, Apr 25, 7:43 PM AKDT · 1257 days ago · 68 km deep · 77 km away
12. 2.087 km NW of Karluk, AlaskaTue, Apr 25, 8:02 PM AKDT · 1257 days ago · 5 km deep · 2 km away
13. 1.559 km N of Karluk, AlaskaTue, Apr 25, 10:04 PM AKDT · 1257 days ago · 82 km deep · 45 km away
14. 2.069 km WNW of Karluk, AlaskaWed, Apr 26, 6:35 AM AKDT · 1257 days ago · 81 km deep · 45 km away
15. 1.9Alaska PeninsulaWed, Apr 26, 9:44 AM AKDT · 1257 days ago · 76 km deep · 82 km away
16. 1.659 km E of Ugashik, AlaskaWed, Apr 26, 10:23 PM AKDT · 1256 days ago · 10 km deep · 96 km away
17. 1.880 km ESE of Egegik, AlaskaThu, Apr 27, 5:29 AM AKDT · 1256 days ago · 117 km deep · 55 km away
18. 2.587 km NNW of Karluk, AlaskaThu, Apr 27, 5:31 AM AKDT · 1256 days ago · 6 km deep · 33 km away
19. 2.388 km NNW of Karluk, AlaskaThu, Apr 27, 5:31 AM AKDT · 1256 days ago · 6 km deep · 34 km away
20. 2.2Alaska PeninsulaThu, Apr 27, 6:36 AM AKDT · 1256 days ago · 6 km deep · 33 km away
21. 1.741 km WSW of Karluk, AlaskaThu, Apr 27, 8:55 AM AKDT · 1256 days ago · 64 km deep · 76 km away
22. 2.867 km WSW of Karluk, AlaskaFri, Apr 28, 9:50 AM AKDT · 1255 days ago · 64 km deep · 97 km away
23. 2.082 km ESE of Egegik, AlaskaFri, Apr 28, 10:30 PM AKDT · 1254 days ago · 121 km deep · 59 km away
24. 2.048 km ENE of Ugashik, AlaskaSat, Apr 29, 3:22 AM AKDT · 1254 days ago · 116 km deep · 96 km away
25. 1.586 km NW of Karluk, AlaskaSat, Apr 29, 8:32 AM AKDT · 1254 days ago · 2 km deep · 2 km away
26. 1.660 km SSE of Kokhanok, AlaskaSat, Apr 29, 3:59 PM AKDT · 1253 days ago · 114 km deep · 99 km away
27. 1.586 km ESE of Egegik, AlaskaSat, Apr 29, 10:08 PM AKDT · 1253 days ago · 13 km deep · 49 km away
28. 1.7Alaska PeninsulaSun, Apr 30, 1:18 AM AKDT · 1253 days ago · 143 km deep · 35 km away
29. 1.861 km ENE of Ugashik, AlaskaSun, Apr 30, 6:50 AM AKDT · 1253 days ago · 119 km deep · 81 km away
30. 1.793 km NW of Aleneva, AlaskaSun, Apr 30, 12:06 PM AKDT · 1252 days ago · 96 km deep · 95 km away
31. 1.857 km NW of Karluk, AlaskaSun, Apr 30, 2:36 PM AKDT · 1252 days ago · 91 km deep · 28 km away
32. 2.926 km W of Karluk, AlaskaSun, Apr 30, 6:26 PM AKDT · 1252 days ago · 72 km deep · 71 km away
33. 1.975 km ESE of Egegik, AlaskaMon, May 1, 6:16 AM AKDT · 1252 days ago · 121 km deep · 61 km away
34. 2.483 km SSE of Kokhanok, AlaskaMon, May 1, 1:14 PM AKDT · 1251 days ago · 105 km deep · 82 km away
35. 1.794 km N of Karluk, AlaskaMon, May 1, 10:34 PM AKDT · 1251 days ago · 4 km deep · 59 km away
36. 1.874 km S of Kokhanok, AlaskaTue, May 2, 8:00 AM AKDT · 1251 days ago · 126 km deep · 75 km away
37. 1.970 km SSE of Kokhanok, AlaskaWed, May 3, 3:43 AM AKDT · 1250 days ago · 119 km deep · 88 km away
38. 1.541 km SW of Karluk, AlaskaWed, May 3, 7:24 AM AKDT · 1250 days ago · 53 km deep · 95 km away
39. 1.7Alaska PeninsulaWed, May 3, 9:25 AM AKDT · 1250 days ago · 137 km deep · 57 km away
40. 2.188 km NW of Karluk, AlaskaThu, May 4, 12:08 PM AKDT · 1248 days ago · 2 km deep · 4 km away
41. 1.688 km NW of Karluk, AlaskaThu, May 4, 12:57 PM AKDT · 1248 days ago · 3 km deep · 4 km away
42. 1.6Alaska PeninsulaThu, May 4, 6:44 PM AKDT · 1248 days ago · 2 km deep · 18 km away
43. 1.570 km W of Karluk, AlaskaThu, May 4, 8:46 PM AKDT · 1248 days ago · 82 km deep · 56 km away
44. 3.684 km NW of Aleneva, AlaskaThu, May 4, 11:44 PM AKDT · 1248 days ago · 74 km deep · 88 km away
45. 1.989 km NW of Karluk, AlaskaFri, May 5, 5:17 AM AKDT · 1248 days ago · 3 km deep · 4 km away
46. 1.8Alaska PeninsulaFri, May 5, 6:40 AM AKDT · 1248 days ago · 3 km deep · 4 km away
47. 1.585 km NW of Karluk, AlaskaFri, May 5, 7:37 AM AKDT · 1248 days ago · 0 km deep · 4 km away
48. 1.9Alaska PeninsulaFri, May 5, 4:38 PM AKDT · 1247 days ago · 67 km deep · 97 km away
49. 1.962 km N of Karluk, AlaskaFri, May 5, 5:37 PM AKDT · 1247 days ago · 82 km deep · 51 km away
50. 1.689 km ESE of King Salmon, AlaskaFri, May 5, 10:31 PM AKDT · 1247 days ago · 120 km deep · 32 km away
51. 3.119 km SSW of Karluk, AlaskaFri, May 5, 10:36 PM AKDT · 1247 days ago · 19 km deep · 94 km away
52. 1.5Kodiak Island region, AlaskaFri, May 5, 11:21 PM AKDT · 1247 days ago · 31 km deep · 96 km away
53. 1.677 km WSW of Karluk, AlaskaSat, May 6, 1:45 AM AKDT · 1247 days ago · 67 km deep · 95 km away
54. 1.583 km ESE of King Salmon, AlaskaSat, May 6, 11:06 AM AKDT · 1246 days ago · 142 km deep · 15 km away
55. 1.719 km SSW of Karluk, AlaskaSat, May 6, 11:53 AM AKDT · 1246 days ago · 47 km deep · 96 km away
56. 1.672 km WNW of Aleneva, AlaskaSun, May 7, 2:39 AM AKDT · 1246 days ago · 6 km deep · 74 km away
57. 1.785 km NNW of Karluk, AlaskaSun, May 7, 6:13 AM AKDT · 1246 days ago · 0 km deep · 18 km away
58. 2.185 km NNW of Karluk, AlaskaSun, May 7, 10:45 AM AKDT · 1246 days ago · 4 km deep · 18 km away
59. 2.349 km N of Larsen Bay, AlaskaSun, May 7, 4:01 PM AKDT · 1245 days ago · 4 km deep · 90 km away
60. 1.575 km W of Karluk, AlaskaSun, May 7, 7:58 PM AKDT · 1245 days ago · 80 km deep · 62 km away

The first 60 of at least 200.

Before

1. 1.782 km SE of King Salmon, AlaskaFri, Apr 21, 9:08 AM AKDT · 1262 days ago · 125 km deep · 21 km away
2. 2.381 km ENE of Ugashik, AlaskaFri, Apr 21, 5:37 AM AKDT · 1262 days ago · 111 km deep · 63 km away
3. 1.971 km WNW of Aleneva, AlaskaThu, Apr 20, 8:15 PM AKDT · 1262 days ago · 70 km deep · 75 km away
4. 1.56 km NNE of Karluk, AlaskaTue, Apr 18, 1:46 PM AKDT · 1264 days ago · 55 km deep · 82 km away
5. 1.585 km NW of Karluk, AlaskaMon, Apr 17, 2:04 PM AKDT · 1265 days ago · 3 km deep · 3 km away
6. 2.178 km N of Karluk, AlaskaSun, Apr 16, 3:14 AM AKDT · 1267 days ago · 79 km deep · 62 km away
7. 1.842 km NW of Karluk, AlaskaSat, Apr 15, 9:59 PM AKDT · 1267 days ago · 72 km deep · 43 km away
8. 1.885 km ESE of King Salmon, AlaskaSat, Apr 15, 5:19 PM AKDT · 1267 days ago · 136 km deep · 39 km away
9. 1.8Alaska PeninsulaSat, Apr 15, 5:04 AM AKDT · 1268 days ago · 2 km deep · 35 km away
10. 1.861 km NW of Karluk, AlaskaSat, Apr 15, 4:16 AM AKDT · 1268 days ago · 87 km deep · 25 km away
11. 1.6Kodiak Island region, AlaskaSat, Apr 15, 3:29 AM AKDT · 1268 days ago · 60 km deep · 62 km away
12. 1.884 km NW of Karluk, AlaskaSat, Apr 15, 12:11 AM AKDT · 1268 days ago · 2 km deep · 5 km away
13. 2.356 km ENE of Ugashik, AlaskaFri, Apr 14, 10:20 PM AKDT · 1268 days ago · 135 km deep · 87 km away
14. 1.865 km WSW of Karluk, AlaskaFri, Apr 14, 6:13 PM AKDT · 1268 days ago · 66 km deep · 98 km away
15. 1.786 km NNW of Karluk, AlaskaFri, Apr 14, 1:53 PM AKDT · 1268 days ago · 4 km deep · 13 km away
16. 1.944 km N of Larsen Bay, AlaskaFri, Apr 14, 6:00 AM AKDT · 1269 days ago · 58 km deep · 77 km away
17. 1.768 km NW of Karluk, AlaskaFri, Apr 14, 5:15 AM AKDT · 1269 days ago · 104 km deep · 17 km away
18. 1.686 km NW of Karluk, AlaskaFri, Apr 14, 4:58 AM AKDT · 1269 days ago · 1 km deep · 4 km away
19. 1.585 km NW of Karluk, AlaskaFri, Apr 14, 2:40 AM AKDT · 1269 days ago · 4 km deep · 3 km away
20. 1.963 km W of Karluk, AlaskaThu, Apr 13, 10:37 PM AKDT · 1269 days ago · 89 km deep · 65 km away

From the USGS Earthquake Hazards Program and its partner networks, event av91857201. Read Sun, Oct 4, 2026, 6:24 AM UTC.