M2.8 earthquake 233 km WSW of Adak, Alaska

Magnitude

2.8 (ml), micro

Local time

Mon, Sep 18, 2023, 2:21 AM HADT

UTC

2023-09-18 11:21:48 UTC

Depth

66.5 km (41.3 mi), shallow

Epicenter

51.444° N, 179.940° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 4.4 km horizontally, 8.7 km in depth

Magnitude uncertainty

±0.09

Depth from

From location

Station coverage gap

181°, poorly surrounded by stations

Stations used

19

After

1. 3.1209 km WSW of Adak, AlaskaMon, Sep 18, 9:41 AM HADT · 1108 days ago · 35 km deep · 31 km away
2. 2.1Andreanof Islands, Aleutian Islands, AlaskaMon, Sep 18, 9:06 PM HADT · 1108 days ago · 21 km deep · 62 km away
3. 1.7213 km W of Adak, AlaskaMon, Sep 18, 9:59 PM HADT · 1108 days ago · 13 km deep · 34 km away
4. 2.2Rat Islands, Aleutian Islands, AlaskaTue, Sep 19, 10:37 PM GMT+12 · 1108 days ago · 22 km deep · 85 km away
5. 2.9243 km W of Adak, AlaskaTue, Sep 19, 11:50 PM GMT+12 · 1108 days ago · 90 km deep · 33 km away
6. 2.2Rat Islands, Aleutian Islands, AlaskaThu, Sep 21, 6:45 AM GMT+12 · 1106 days ago · 35 km deep · 85 km away
7. 3.2Rat Islands, Aleutian Islands, AlaskaWed, Sep 20, 10:12 AM HADT · 1106 days ago · 146 km deep · 47 km away
8. 1.9214 km W of Adak, AlaskaWed, Sep 20, 10:31 AM HADT · 1106 days ago · 7 km deep · 33 km away
9. 1.9Andreanof Islands, Aleutian Islands, AlaskaWed, Sep 20, 3:31 PM HADT · 1106 days ago · 11 km deep · 97 km away
10. 3.8184 km WSW of Adak, AlaskaFri, Sep 22, 11:06 AM HADT · 1104 days ago · 61 km deep · 55 km away
11. 1.8230 km W of Adak, AlaskaSat, Sep 23, 4:10 AM HADT · 1104 days ago · 13 km deep · 33 km away
12. 2.3Rat Islands, Aleutian Islands, AlaskaSun, Sep 24, 12:35 PM GMT+12 · 1103 days ago · 31 km deep · 68 km away
13. 2.0Rat Islands, Aleutian Islands, AlaskaSun, Sep 24, 7:02 PM GMT+12 · 1103 days ago · 67 km deep · 91 km away
14. 1.5266 km W of Adak, AlaskaMon, Sep 25, 5:08 AM GMT+12 · 1102 days ago · 13 km deep · 35 km away
15. 3.9282 km W of Adak, AlaskaMon, Sep 25, 6:20 AM GMT+12 · 1102 days ago · 71 km deep · 52 km away
16. 2.9298 km W of Adak, AlaskaMon, Sep 25, 12:23 PM GMT+12 · 1102 days ago · 87 km deep · 79 km away
17. 2.6243 km W of Adak, AlaskaTue, Sep 26, 11:02 AM GMT+12 · 1101 days ago · 144 km deep · 53 km away
18. 1.8134 km W of Adak, AlaskaMon, Sep 25, 2:37 PM HADT · 1101 days ago · 13 km deep · 99 km away
19. 2.6209 km W of Adak, AlaskaMon, Sep 25, 9:09 PM HADT · 1101 days ago · 171 km deep · 74 km away
20. 1.8181 km WSW of Adak, AlaskaTue, Sep 26, 5:35 AM HADT · 1100 days ago · 56 km deep · 53 km away
21. 1.9218 km W of Adak, AlaskaTue, Sep 26, 5:58 AM HADT · 1100 days ago · 76 km deep · 25 km away
22. 2.1248 km WSW of Adak, AlaskaTue, Sep 26, 8:26 AM GMT-12 · 1100 days ago · 13 km deep · 42 km away
23. 2.6243 km WSW of Adak, AlaskaThu, Sep 28, 12:27 PM GMT+12 · 1099 days ago · 63 km deep · 11 km away
24. 2.7227 km W of Adak, AlaskaThu, Sep 28, 6:34 AM HADT · 1098 days ago · 174 km deep · 68 km away
25. 1.8Andreanof Islands, Aleutian Islands, AlaskaThu, Sep 28, 1:01 PM HADT · 1098 days ago · 41 km deep · 24 km away
26. 2.9249 km WSW of Adak, AlaskaSat, Sep 30, 8:08 AM GMT+12 · 1097 days ago · 65 km deep · 16 km away
27. 2.5Rat Islands, Aleutian Islands, AlaskaSat, Sep 30, 10:37 AM GMT+12 · 1097 days ago · 77 km deep · 78 km away
28. 2.7221 km WSW of Adak, AlaskaFri, Sep 29, 4:05 PM HADT · 1097 days ago · 56 km deep · 24 km away
29. 2.1189 km WSW of Adak, AlaskaSat, Sep 30, 12:58 PM HADT · 1096 days ago · 23 km deep · 51 km away
30. 2.0Andreanof Islands, Aleutian Islands, AlaskaMon, Oct 2, 5:34 AM HADT · 1094 days ago · 18 km deep · 40 km away
31. 2.5Rat Islands, Aleutian Islands, AlaskaTue, Oct 3, 3:11 AM GMT+12 · 1094 days ago · 72 km deep · 91 km away
32. 1.9Rat Islands, Aleutian Islands, AlaskaTue, Oct 3, 3:21 AM GMT+12 · 1094 days ago · 24 km deep · 77 km away
33. 2.1275 km W of Adak, AlaskaTue, Oct 3, 5:18 AM GMT+12 · 1094 days ago · 67 km deep · 49 km away
34. 1.8243 km WSW of Adak, AlaskaMon, Oct 2, 9:06 AM GMT-12 · 1094 days ago · 13 km deep · 52 km away
35. 3.2190 km WSW of Adak, AlaskaTue, Oct 3, 7:06 PM HADT · 1093 days ago · 35 km deep · 49 km away
36. 2.5136 km W of Adak, AlaskaWed, Oct 4, 6:22 PM HADT · 1092 days ago · 136 km deep · 99 km away
37. 2.0241 km WSW of Adak, AlaskaThu, Oct 5, 1:37 AM GMT-12 · 1092 days ago · 10 km deep · 48 km away
38. 1.7247 km WSW of Adak, AlaskaFri, Oct 6, 7:35 AM GMT+12 · 1091 days ago · 15 km deep · 28 km away
39. 2.2150 km W of Adak, AlaskaThu, Oct 5, 12:16 PM HADT · 1091 days ago · 142 km deep · 91 km away
40. 2.1198 km W of Adak, AlaskaThu, Oct 5, 1:11 PM HADT · 1091 days ago · 91 km deep · 57 km away
41. 1.9271 km W of Adak, AlaskaFri, Oct 6, 10:34 PM GMT+12 · 1091 days ago · 56 km deep · 41 km away
42. 2.1187 km W of Adak, AlaskaSat, Oct 7, 3:26 AM HADT · 1090 days ago · 74 km deep · 49 km away
43. 2.0238 km WSW of Adak, AlaskaSat, Oct 7, 5:19 PM HADT · 1089 days ago · 15 km deep · 49 km away
44. 3.4Rat Islands, Aleutian Islands, AlaskaMon, Oct 9, 7:02 AM GMT+12 · 1088 days ago · 10 km deep · 75 km away
45. 3.8Rat Islands, Aleutian Islands, AlaskaTue, Oct 10, 12:43 AM GMT+12 · 1088 days ago · 33 km deep · 76 km away
46. 1.9277 km W of Adak, AlaskaTue, Oct 10, 3:17 AM GMT+12 · 1087 days ago · 59 km deep · 48 km away
47. 2.7175 km WSW of Adak, AlaskaMon, Oct 9, 5:52 PM HADT · 1087 days ago · 30 km deep · 61 km away
48. 2.8Rat Islands, Aleutian Islands, AlaskaTue, Oct 10, 4:03 PM GMT+12 · 1087 days ago · 18 km deep · 77 km away
49. 2.0Rat Islands, Aleutian Islands, AlaskaTue, Oct 10, 4:44 PM GMT+12 · 1087 days ago · 20 km deep · 89 km away
50. 1.9180 km WSW of Adak, AlaskaWed, Oct 11, 2:18 AM HADT · 1086 days ago · 24 km deep · 57 km away
51. 2.6186 km WSW of Adak, AlaskaSat, Oct 14, 8:34 AM HADT · 1082 days ago · 33 km deep · 49 km away
52. 3.9204 km WSW of Adak, AlaskaMon, Oct 16, 5:05 AM HADT · 1081 days ago · 10 km deep · 86 km away
53. 3.0286 km WSW of Adak, AlaskaTue, Oct 17, 10:43 AM GMT+12 · 1080 days ago · 31 km deep · 54 km away
54. 2.1175 km W of Adak, AlaskaMon, Oct 16, 3:33 PM HADT · 1080 days ago · 64 km deep · 58 km away
55. 1.6260 km W of Adak, AlaskaTue, Oct 17, 4:23 PM GMT+12 · 1080 days ago · 25 km deep · 39 km away
56. 1.8Rat Islands, Aleutian Islands, AlaskaTue, Oct 17, 7:02 PM GMT+12 · 1080 days ago · 21 km deep · 79 km away
57. 1.6Rat Islands, Aleutian Islands, AlaskaTue, Oct 17, 8:38 PM GMT+12 · 1080 days ago · 47 km deep · 74 km away
58. 2.2201 km W of Adak, AlaskaTue, Oct 17, 12:47 AM HADT · 1080 days ago · 76 km deep · 38 km away
59. 1.8146 km W of Adak, AlaskaTue, Oct 17, 3:54 AM HADT · 1080 days ago · 13 km deep · 87 km away
60. 3.3Rat Islands, Aleutian Islands, AlaskaWed, Oct 18, 8:41 AM GMT+12 · 1079 days ago · 54 km deep · 98 km away

The first 60 of 142.

Before

1. 2.8Andreanof Islands, Aleutian Islands, AlaskaSat, Sep 16, 11:59 PM HADT · 1110 days ago · 119 km deep · 74 km away
2. 2.5Andreanof Islands, Aleutian Islands, AlaskaSat, Sep 16, 8:46 PM HADT · 1110 days ago · 14 km deep · 52 km away
3. 2.0237 km WSW of Adak, AlaskaSat, Sep 16, 8:36 PM HADT · 1110 days ago · 14 km deep · 54 km away
4. 2.0Rat Islands, Aleutian Islands, AlaskaSun, Sep 17, 3:05 PM GMT+12 · 1110 days ago · 66 km deep · 93 km away
5. 2.7Rat Islands, Aleutian Islands, AlaskaSun, Sep 17, 12:45 PM GMT+12 · 1110 days ago · 34 km deep · 67 km away
6. 2.2190 km WSW of Adak, AlaskaSat, Sep 16, 5:48 AM HADT · 1110 days ago · 13 km deep · 60 km away
7. 2.1194 km W of Adak, AlaskaFri, Sep 15, 11:34 AM HADT · 1111 days ago · 75 km deep · 41 km away
8. 1.9257 km WSW of Adak, AlaskaSat, Sep 16, 6:56 AM GMT+12 · 1111 days ago · 34 km deep · 27 km away
9. 2.5157 km WSW of Adak, AlaskaThu, Sep 14, 6:48 PM HADT · 1112 days ago · 10 km deep · 91 km away
10. 2.3236 km WSW of Adak, AlaskaThu, Sep 14, 5:12 PM HADT · 1112 days ago · 13 km deep · 51 km away
11. 3.8209 km WSW of Adak, AlaskaThu, Sep 14, 1:55 PM HADT · 1112 days ago · 51 km deep · 38 km away
12. 2.6Rat Islands, Aleutian Islands, AlaskaFri, Sep 15, 8:38 AM GMT+12 · 1112 days ago · 85 km deep · 97 km away
13. 3.6283 km WSW of Adak, AlaskaFri, Sep 15, 5:47 AM GMT+12 · 1112 days ago · 35 km deep · 50 km away
14. 2.0Andreanof Islands, Aleutian Islands, AlaskaWed, Sep 13, 4:18 AM HADT · 1114 days ago · 13 km deep · 53 km away
15. 2.0236 km WSW of Adak, AlaskaWed, Sep 13, 4:15 AM HADT · 1114 days ago · 14 km deep · 49 km away
16. 2.0237 km WSW of Adak, AlaskaWed, Sep 13, 4:12 AM HADT · 1114 days ago · 12 km deep · 52 km away
17. 2.0235 km WSW of Adak, AlaskaWed, Sep 13, 4:08 AM HADT · 1114 days ago · 13 km deep · 49 km away
18. 2.5Rat Islands, Aleutian Islands, AlaskaThu, Sep 14, 1:00 AM GMT+12 · 1114 days ago · 66 km deep · 71 km away
19. 2.7227 km W of Adak, AlaskaTue, Sep 12, 8:26 AM HADT · 1114 days ago · 80 km deep · 22 km away
20. 2.0200 km W of Adak, AlaskaMon, Sep 11, 10:15 PM HADT · 1115 days ago · 88 km deep · 46 km away

From the USGS Earthquake Hazards Program and its partner networks, event us6000lcbi (also filed as ak023bztxyb8). Read Thu, Oct 1, 2026, 1:38 AM UTC.