M1.9 earthquake 143 km W of Adak, Alaska

Magnitude

1.9 (ML, local (Richter)), micro

Magnitude from

AV

Local time

Tue, Oct 28, 2025, 2:56 AM HADT

UTC

2025-10-28 11:56:03 UTC

Depth

17.6 km (11.0 mi), shallow

Epicenter

51.773° N, 178.707° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.8 km horizontally, 0.8 km in depth

Magnitude uncertainty

±0.26

Depth from

From location

Station coverage gap

112°

Stations used

11

After

1. 1.5163 km W of Adak, AlaskaSat, Nov 1, 2:27 PM HADT · 334 days ago · 6 km deep · 20 km away
2. 2.383 km WSW of Adak, AlaskaSun, Nov 2, 6:45 AM HAST · 334 days ago · 14 km deep · 81 km away
3. 3.693 km WSW of Adak, AlaskaTue, Nov 11, 7:15 AM HAST · 325 days ago · 87 km deep · 61 km away
4. 3.7144 km WSW of Adak, AlaskaWed, Nov 12, 11:17 PM HAST · 323 days ago · 35 km deep · 56 km away
5. 2.1151 km SW of Adak, AlaskaThu, Nov 13, 3:51 AM HAST · 323 days ago · 10 km deep · 87 km away
6. 2.8194 km WSW of Adak, AlaskaThu, Nov 13, 7:12 AM HAST · 323 days ago · 35 km deep · 75 km away
7. 3.0120 km WSW of Adak, AlaskaSun, Nov 16, 8:05 AM HAST · 320 days ago · 37 km deep · 57 km away
8. 1.676 km W of Adak, AlaskaMon, Nov 17, 7:29 AM HAST · 319 days ago · 6 km deep · 67 km away
9. 3.194 km WSW of Adak, AlaskaMon, Nov 17, 7:08 PM HAST · 318 days ago · 61 km deep · 58 km away
10. 2.9157 km WSW of Adak, AlaskaMon, Nov 17, 7:13 PM HAST · 318 days ago · 8 km deep · 59 km away
11. 2.3106 km WSW of Adak, AlaskaWed, Nov 19, 2:50 AM HAST · 317 days ago · 35 km deep · 63 km away
12. 2.977 km SW of Adak, AlaskaWed, Nov 19, 6:27 AM HAST · 317 days ago · 35 km deep · 86 km away
13. 3.1119 km SW of Adak, AlaskaWed, Nov 19, 10:57 AM HAST · 317 days ago · 35 km deep · 84 km away
14. 2.478 km WSW of Adak, AlaskaWed, Nov 19, 12:17 PM HAST · 316 days ago · 17 km deep · 81 km away
15. 2.4128 km WSW of Adak, AlaskaThu, Nov 20, 2:25 PM HAST · 315 days ago · 44 km deep · 56 km away
16. 4.3124 km SW of Adak, AlaskaFri, Nov 21, 8:49 AM HAST · 315 days ago · 46 km deep · 73 km away
17. 1.8137 km WSW of Adak, AlaskaFri, Nov 21, 5:58 PM HAST · 314 days ago · 14 km deep · 19 km away
18. 2.6177 km W of Adak, AlaskaFri, Nov 21, 11:58 PM HAST · 314 days ago · 239 km deep · 34 km away
19. 3.6127 km SW of Adak, AlaskaSat, Nov 22, 9:10 AM HAST · 314 days ago · 10 km deep · 89 km away
20. 2.3105 km WSW of Adak, AlaskaMon, Nov 24, 8:01 PM HAST · 311 days ago · 20 km deep · 67 km away
21. 2.1109 km WSW of Adak, AlaskaTue, Nov 25, 3:20 AM HAST · 311 days ago · 13 km deep · 56 km away
22. 2.9185 km WSW of Adak, AlaskaTue, Nov 25, 4:37 PM HAST · 310 days ago · 77 km deep · 52 km away
23. 2.9223 km WSW of Adak, AlaskaThu, Nov 27, 3:57 AM HAST · 309 days ago · 10 km deep · 93 km away
24. 2.4122 km WSW of Adak, AlaskaThu, Nov 27, 4:40 AM HAST · 309 days ago · 23 km deep · 46 km away
25. 4.4140 km WSW of Adak, AlaskaThu, Nov 27, 6:32 PM HAST · 308 days ago · 48 km deep · 60 km away
26. 3.4130 km WSW of Adak, AlaskaSat, Nov 29, 10:30 PM HAST · 306 days ago · 38 km deep · 69 km away · felt by 1
27. 4.2199 km WSW of Adak, AlaskaWed, Dec 3, 1:39 AM HAST · 303 days ago · 13 km deep · 95 km away
28. 1.982 km W of Adak, AlaskaThu, Dec 4, 1:04 AM HAST · 302 days ago · 5 km deep · 62 km away
29. 2.6154 km WSW of Adak, AlaskaThu, Dec 4, 4:49 PM HAST · 301 days ago · 59 km deep · 46 km away
30. 2.8119 km SW of Adak, AlaskaFri, Dec 5, 4:55 AM HAST · 301 days ago · 16 km deep · 99 km away
31. 2.4135 km WSW of Adak, AlaskaSat, Dec 6, 12:20 AM HAST · 300 days ago · 35 km deep · 68 km away
32. 2.0133 km WSW of Adak, AlaskaMon, Dec 8, 1:13 PM HAST · 297 days ago · 12 km deep · 37 km away
33. 2.697 km WSW of Adak, AlaskaTue, Dec 9, 7:15 AM HAST · 297 days ago · 48 km deep · 74 km away
34. 2.4166 km W of Adak, AlaskaWed, Dec 10, 3:19 AM HAST · 296 days ago · 5 km deep · 24 km away
35. 3.1165 km WSW of Adak, AlaskaWed, Dec 10, 8:39 AM HAST · 296 days ago · 31 km deep · 61 km away
36. 2.594 km WSW of Adak, AlaskaWed, Dec 10, 1:47 PM HAST · 295 days ago · 32 km deep · 73 km away
37. 2.258 km W of Adak, AlaskaThu, Dec 11, 12:21 AM HAST · 295 days ago · 87 km deep · 85 km away
38. 2.2102 km WSW of Adak, AlaskaThu, Dec 11, 12:22 PM HAST · 294 days ago · 69 km deep · 48 km away
39. 2.9145 km WSW of Adak, AlaskaFri, Dec 12, 8:22 AM HAST · 294 days ago · 30 km deep · 61 km away
40. 3.2140 km SW of Adak, AlaskaFri, Dec 12, 4:57 PM HAST · 293 days ago · 10 km deep · 92 km away
41. 3.0128 km SW of Adak, AlaskaFri, Dec 12, 6:17 PM HAST · 293 days ago · 28 km deep · 76 km away
42. 2.287 km W of Adak, AlaskaFri, Dec 12, 7:17 PM HAST · 293 days ago · 7 km deep · 56 km away
43. 2.289 km W of Adak, AlaskaFri, Dec 12, 9:35 PM HAST · 293 days ago · 11 km deep · 54 km away
44. 3.1219 km WSW of Adak, AlaskaSat, Dec 13, 2:52 PM HAST · 292 days ago · 35 km deep · 91 km away
45. 3.870 km WNW of Adak, AlaskaSun, Dec 14, 7:14 AM HAST · 292 days ago · 160 km deep · 91 km away
46. 3.1125 km W of Adak, AlaskaMon, Dec 15, 12:30 AM HAST · 291 days ago · 129 km deep · 18 km away
47. 2.9121 km WSW of Adak, AlaskaTue, Dec 16, 7:24 AM HAST · 290 days ago · 13 km deep · 49 km away
48. 2.5228 km WSW of Adak, AlaskaTue, Dec 16, 10:49 AM HAST · 290 days ago · 66 km deep · 88 km away
49. 1.854 km WSW of Adak, AlaskaTue, Dec 16, 2:52 PM HAST · 289 days ago · 81 km deep · 94 km away
50. 2.4172 km W of Adak, AlaskaTue, Dec 16, 3:05 PM HAST · 289 days ago · 130 km deep · 29 km away
51. 2.9206 km WSW of Adak, AlaskaTue, Dec 16, 6:00 PM HAST · 289 days ago · 35 km deep · 81 km away
52. 2.5213 km WSW of Adak, AlaskaWed, Dec 17, 4:18 PM HAST · 288 days ago · 24 km deep · 90 km away
53. 2.3124 km WSW of Adak, AlaskaThu, Dec 18, 4:50 AM HAST · 288 days ago · 35 km deep · 39 km away
54. 2.392 km SW of Adak, AlaskaThu, Dec 18, 9:15 PM HAST · 287 days ago · 53 km deep · 79 km away
55. 3.3220 km W of Adak, AlaskaFri, Dec 19, 2:50 AM HAST · 287 days ago · 106 km deep · 77 km away
56. 2.2105 km WSW of Adak, AlaskaFri, Dec 19, 8:41 PM HAST · 286 days ago · 34 km deep · 57 km away
57. 3.3153 km WSW of Adak, AlaskaSat, Dec 20, 6:18 AM HAST · 286 days ago · 35 km deep · 66 km away
58. 2.299 km WSW of Adak, AlaskaMon, Dec 22, 10:52 PM HAST · 283 days ago · 26 km deep · 70 km away
59. 2.8181 km WSW of Adak, AlaskaMon, Dec 22, 11:06 PM HAST · 283 days ago · 76 km deep · 45 km away
60. 3.8211 km WSW of Adak, AlaskaMon, Dec 22, 11:53 PM HAST · 283 days ago · 37 km deep · 90 km away

The first 60 of 68.

Before

1. 1.576 km WSW of Adak, AlaskaMon, Oct 27, 10:54 PM HADT · 339 days ago · 18 km deep · 74 km away
2. 2.7149 km WSW of Adak, AlaskaSun, Oct 26, 7:55 AM HADT · 341 days ago · 10 km deep · 46 km away
3. 1.9118 km WSW of Adak, AlaskaSun, Oct 26, 1:46 AM HADT · 341 days ago · 16 km deep · 43 km away
4. 3.8120 km SW of Adak, AlaskaSat, Oct 25, 9:36 PM HADT · 341 days ago · 31 km deep · 75 km away
5. 2.4126 km WSW of Adak, AlaskaSat, Oct 25, 7:46 PM HADT · 341 days ago · 9 km deep · 28 km away
6. 1.584 km W of Adak, AlaskaMon, Oct 20, 6:34 PM HADT · 346 days ago · 5 km deep · 60 km away
7. 1.984 km W of Adak, AlaskaMon, Oct 20, 6:34 PM HADT · 346 days ago · 3 km deep · 59 km away
8. 1.785 km W of Adak, AlaskaMon, Oct 20, 5:55 PM HADT · 346 days ago · 4 km deep · 59 km away
9. 1.885 km W of Adak, AlaskaMon, Oct 20, 5:28 PM HADT · 346 days ago · -2 km deep · 59 km away
10. 2.184 km W of Adak, AlaskaMon, Oct 20, 5:10 PM HADT · 346 days ago · 1 km deep · 61 km away
11. 1.8121 km WSW of Adak, AlaskaSat, Oct 18, 4:33 AM HADT · 349 days ago · 35 km deep · 58 km away
12. 2.8206 km W of Adak, AlaskaFri, Oct 17, 7:08 PM HADT · 349 days ago · 96 km deep · 63 km away
13. 2.6122 km SW of Adak, AlaskaFri, Oct 17, 4:05 PM HADT · 349 days ago · 35 km deep · 79 km away
14. 2.8221 km W of Adak, AlaskaThu, Oct 16, 10:09 PM HADT · 350 days ago · 10 km deep · 78 km away
15. 2.6144 km WSW of Adak, AlaskaWed, Oct 15, 12:08 AM HADT · 352 days ago · 80 km deep · 16 km away
16. 1.975 km W of Adak, AlaskaFri, Oct 10, 11:32 PM HADT · 356 days ago · 8 km deep · 68 km away
17. 1.655 km W of Adak, AlaskaFri, Oct 10, 4:44 PM HADT · 356 days ago · -2 km deep · 88 km away
18. 1.7103 km WSW of Adak, AlaskaSun, Oct 5, 9:19 PM HADT · 361 days ago · 16 km deep · 47 km away
19. 4.2200 km W of Adak, AlaskaSat, Oct 4, 4:51 PM HADT · 362 days ago · 79 km deep · 59 km away
20. 1.681 km W of Adak, AlaskaFri, Oct 3, 4:16 PM HADT · 363 days ago · 8 km deep · 62 km away

From the USGS Earthquake Hazards Program and its partner networks, event av93851996. Read Fri, Oct 2, 2026, 8:45 AM UTC.