M3.1 earthquake 216 km WSW of Adak, Alaska

Magnitude

3.1 (ml), minor

Local time

Sat, Jan 21, 2023, 9:08 AM HAST

UTC

2023-01-21 19:08:36 UTC

Depth

35.0 km (21.7 mi), shallow

Epicenter

51.088° N, 179.490° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 4.3 km horizontally, 2.0 km in depth

Magnitude uncertainty

±0.10

Depth from

Operator assigned

Station coverage gap

226°, poorly surrounded by stations

Stations used

15

After

1. 3.1193 km W of Adak, AlaskaThu, Jan 26, 6:03 AM HAST · 1343 days ago · 99 km deep · 74 km away
2. 2.8234 km W of Adak, AlaskaThu, Jan 26, 11:02 PM HAST · 1342 days ago · 10 km deep · 79 km away
3. 2.1129 km WSW of Adak, AlaskaFri, Jan 27, 1:26 AM HAST · 1342 days ago · 24 km deep · 87 km away
4. 2.8117 km WSW of Adak, AlaskaSat, Jan 28, 10:05 PM HAST · 1340 days ago · 33 km deep · 99 km away
5. 3.0182 km WSW of Adak, AlaskaSun, Jan 29, 5:56 AM HAST · 1340 days ago · 26 km deep · 54 km away
6. 2.2116 km WSW of Adak, AlaskaSun, Jan 29, 6:58 PM HAST · 1339 days ago · 47 km deep · 100 km away
7. 1.6145 km W of Adak, AlaskaMon, Jan 30, 1:46 AM HAST · 1339 days ago · 7 km deep · 96 km away
8. 2.1253 km WSW of Adak, AlaskaTue, Jan 31, 12:17 PM GMT+12 · 1339 days ago · 13 km deep · 56 km away
9. 3.3124 km SW of Adak, AlaskaTue, Jan 31, 2:09 AM HAST · 1338 days ago · 35 km deep · 97 km away
10. 3.6Andreanof Islands, Aleutian Islands, AlaskaTue, Jan 31, 3:48 AM HAST · 1338 days ago · 41 km deep · 97 km away
11. 2.1249 km WSW of Adak, AlaskaThu, Feb 2, 4:50 AM GMT+12 · 1337 days ago · 5 km deep · 65 km away
12. 2.6190 km WSW of Adak, AlaskaWed, Feb 1, 6:25 PM HAST · 1336 days ago · 29 km deep · 35 km away
13. 3.3233 km WSW of Adak, AlaskaWed, Feb 1, 11:16 PM HAST · 1336 days ago · 21 km deep · 26 km away
14. 3.1274 km WSW of Adak, AlaskaFri, Feb 3, 11:32 AM GMT+12 · 1336 days ago · 65 km deep · 83 km away
15. 3.1167 km WSW of Adak, AlaskaThu, Feb 2, 3:12 PM HAST · 1336 days ago · 35 km deep · 56 km away
16. 2.7158 km WSW of Adak, AlaskaThu, Feb 2, 7:35 PM HAST · 1335 days ago · 33 km deep · 61 km away
17. 3.3212 km W of Adak, AlaskaFri, Feb 3, 1:53 PM HAST · 1335 days ago · 122 km deep · 98 km away
18. 2.8159 km WSW of Adak, AlaskaSat, Feb 4, 3:22 AM HAST · 1334 days ago · 10 km deep · 57 km away
19. 2.3179 km WSW of Adak, AlaskaSun, Feb 5, 12:25 PM HAST · 1333 days ago · 31 km deep · 37 km away
20. 3.2299 km WSW of Adak, AlaskaMon, Feb 6, 4:07 PM GMT+12 · 1332 days ago · 20 km deep · 86 km away
21. 2.3142 km WSW of Adak, AlaskaSun, Feb 5, 6:42 PM HAST · 1332 days ago · 13 km deep · 79 km away
22. 2.2165 km WSW of Adak, AlaskaMon, Feb 6, 6:30 PM HAST · 1331 days ago · 22 km deep · 52 km away
23. 2.7145 km WSW of Adak, AlaskaMon, Feb 6, 7:38 PM HAST · 1331 days ago · 18 km deep · 71 km away
24. 2.0190 km WSW of Adak, AlaskaMon, Feb 6, 7:48 PM HAST · 1331 days ago · 13 km deep · 35 km away
25. 2.1141 km WSW of Adak, AlaskaTue, Feb 7, 2:27 AM HAST · 1331 days ago · 22 km deep · 79 km away
26. 2.2239 km WSW of Adak, AlaskaTue, Feb 7, 3:40 AM GMT-12 · 1331 days ago · 13 km deep · 29 km away
27. 2.0139 km WSW of Adak, AlaskaTue, Feb 7, 8:41 AM HAST · 1331 days ago · 25 km deep · 78 km away
28. 2.3Andreanof Islands, Aleutian Islands, AlaskaTue, Feb 7, 10:27 AM HAST · 1331 days ago · 17 km deep · 76 km away
29. 2.4177 km W of Adak, AlaskaTue, Feb 7, 5:17 PM HAST · 1331 days ago · 88 km deep · 77 km away
30. 2.8135 km SW of Adak, AlaskaWed, Feb 8, 5:27 AM HAST · 1330 days ago · 35 km deep · 92 km away
31. 2.5200 km WSW of Adak, AlaskaWed, Feb 8, 12:46 PM HAST · 1330 days ago · 71 km deep · 48 km away
32. 2.6288 km WSW of Adak, AlaskaThu, Feb 9, 12:31 PM GMT+12 · 1330 days ago · 24 km deep · 77 km away
33. 2.1143 km WSW of Adak, AlaskaWed, Feb 8, 5:08 PM HAST · 1330 days ago · 26 km deep · 75 km away
34. 3.4218 km W of Adak, AlaskaWed, Feb 8, 10:06 PM HAST · 1329 days ago · 91 km deep · 76 km away
35. 2.9200 km WSW of Adak, AlaskaSat, Feb 11, 11:45 AM HAST · 1327 days ago · 35 km deep · 16 km away
36. 2.1139 km SW of Adak, AlaskaSat, Feb 11, 6:35 PM HAST · 1326 days ago · 33 km deep · 88 km away
37. 2.1124 km WSW of Adak, AlaskaSat, Feb 11, 9:05 PM HAST · 1326 days ago · 25 km deep · 92 km away
38. 1.9146 km WSW of Adak, AlaskaSun, Feb 12, 4:47 AM HAST · 1326 days ago · 21 km deep · 75 km away
39. 5.3191 km WSW of Adak, AlaskaTue, Feb 14, 9:35 PM HAST · 1323 days ago · 35 km deep · 26 km away · felt by 1 · tsunami flag
40. 2.0Andreanof Islands, Aleutian Islands, AlaskaFri, Feb 17, 9:44 AM HAST · 1321 days ago · 21 km deep · 96 km away
41. 2.4203 km WSW of Adak, AlaskaFri, Feb 17, 11:45 PM HAST · 1320 days ago · 49 km deep · 45 km away
42. 2.1200 km WSW of Adak, AlaskaSun, Feb 19, 12:55 PM HAST · 1319 days ago · 35 km deep · 37 km away
43. 2.5188 km W of Adak, AlaskaSun, Feb 19, 2:20 PM HAST · 1319 days ago · 91 km deep · 63 km away
44. 3.6148 km WSW of Adak, AlaskaMon, Feb 20, 5:22 AM HAST · 1318 days ago · 60 km deep · 70 km away
45. 2.8179 km WSW of Adak, AlaskaTue, Feb 21, 8:44 AM HAST · 1317 days ago · 35 km deep · 38 km away
46. 3.2132 km WSW of Adak, AlaskaWed, Feb 22, 8:26 AM HAST · 1316 days ago · 35 km deep · 87 km away
47. 3.0163 km WSW of Adak, AlaskaWed, Feb 22, 8:58 PM HAST · 1315 days ago · 35 km deep · 54 km away
48. 4.1192 km WSW of Adak, AlaskaThu, Feb 23, 7:27 AM HAST · 1315 days ago · 35 km deep · 26 km away
49. 3.3Andreanof Islands, Aleutian Islands, AlaskaThu, Feb 23, 8:46 AM HAST · 1315 days ago · 30 km deep · 29 km away
50. 3.3299 km WSW of Adak, AlaskaFri, Feb 24, 9:01 AM GMT+12 · 1315 days ago · 38 km deep · 99 km away
51. 2.7145 km WSW of Adak, AlaskaThu, Feb 23, 11:06 PM HAST · 1314 days ago · 10 km deep · 80 km away
52. 2.7258 km WSW of Adak, AlaskaSat, Feb 25, 9:15 AM GMT+12 · 1314 days ago · 29 km deep · 52 km away
53. 5.0121 km WSW of Adak, AlaskaSun, Feb 26, 3:53 AM HAST · 1312 days ago · 49 km deep · 96 km away
54. 2.0122 km WSW of Adak, AlaskaSun, Feb 26, 9:19 PM HAST · 1311 days ago · 42 km deep · 94 km away
55. 2.2123 km WSW of Adak, AlaskaTue, Feb 28, 3:28 AM HAST · 1310 days ago · 26 km deep · 93 km away
56. 3.0229 km WSW of Adak, AlaskaWed, Mar 1, 4:37 AM HAST · 1309 days ago · 72 km deep · 54 km away
57. 2.6Rat Islands, Aleutian Islands, AlaskaFri, Mar 3, 6:02 PM GMT+12 · 1307 days ago · 33 km deep · 52 km away
58. 2.6278 km WSW of Adak, AlaskaSat, Mar 4, 2:02 AM GMT+12 · 1307 days ago · 27 km deep · 86 km away
59. 2.1142 km WSW of Adak, AlaskaFri, Mar 3, 3:16 PM HAST · 1307 days ago · 24 km deep · 74 km away
60. 3.1129 km SW of Adak, AlaskaSun, Mar 5, 8:58 AM HAST · 1305 days ago · 33 km deep · 97 km away

The first 60 of 85.

Before

1. 4.0208 km WSW of Adak, AlaskaSat, Jan 21, 5:37 AM HAST · 1348 days ago · 10 km deep · 24 km away
2. 2.6Andreanof Islands, Aleutian Islands, AlaskaThu, Jan 19, 2:14 PM HAST · 1350 days ago · 85 km deep · 67 km away
3. 2.6214 km WSW of Adak, AlaskaThu, Jan 19, 7:10 AM HAST · 1350 days ago · 46 km deep · 28 km away
4. 2.1242 km WSW of Adak, AlaskaFri, Jan 20, 4:07 AM GMT+12 · 1350 days ago · 9 km deep · 48 km away
5. 2.0206 km WSW of Adak, AlaskaTue, Jan 17, 10:54 PM HAST · 1351 days ago · 21 km deep · 28 km away
6. 2.1164 km WSW of Adak, AlaskaTue, Jan 17, 3:39 PM HAST · 1352 days ago · 13 km deep · 59 km away
7. 1.6Andreanof Islands, Aleutian Islands, AlaskaTue, Jan 17, 9:30 AM HAST · 1352 days ago · 5 km deep · 69 km away
8. 2.2157 km WSW of Adak, AlaskaMon, Jan 16, 9:29 PM HAST · 1352 days ago · 56 km deep · 62 km away
9. 3.2260 km WSW of Adak, AlaskaTue, Jan 17, 3:43 AM GMT+12 · 1353 days ago · 56 km deep · 64 km away
10. 2.5128 km WSW of Adak, AlaskaMon, Jan 16, 12:53 AM HAST · 1353 days ago · 31 km deep · 91 km away
11. 3.6135 km W of Adak, AlaskaSun, Jan 15, 9:13 PM HAST · 1353 days ago · 73 km deep · 95 km away
12. 2.1128 km WSW of Adak, AlaskaWed, Jan 11, 12:08 PM HAST · 1358 days ago · 14 km deep · 94 km away
13. 2.3211 km WSW of Adak, AlaskaTue, Jan 10, 1:25 PM HAST · 1359 days ago · 20 km deep · 12 km away
14. 3.9141 km SW of Adak, AlaskaTue, Jan 10, 8:54 AM HAST · 1359 days ago · 35 km deep · 93 km away
15. 1.8Andreanof Islands, Aleutian Islands, AlaskaMon, Jan 9, 6:26 PM HAST · 1359 days ago · 13 km deep · 96 km away
16. 2.0144 km W of Adak, AlaskaMon, Jan 9, 3:00 PM HAST · 1360 days ago · 12 km deep · 85 km away
17. 3.5130 km WSW of Adak, AlaskaMon, Jan 9, 4:45 AM HAST · 1360 days ago · 18 km deep · 86 km away
18. 2.0126 km WSW of Adak, AlaskaMon, Jan 9, 1:29 AM HAST · 1360 days ago · 6 km deep · 91 km away
19. 2.5Andreanof Islands, Aleutian Islands, AlaskaSat, Jan 7, 10:01 AM HAST · 1362 days ago · 35 km deep · 17 km away
20. 2.0151 km WSW of Adak, AlaskaSat, Jan 7, 7:17 AM HAST · 1362 days ago · 19 km deep · 66 km away

From the USGS Earthquake Hazards Program and its partner networks, event us6000jlaa (also filed as ak023z1nbgs). Read Wed, Sep 30, 2026, 3:23 PM UTC.