M1.6 earthquake 13 km SSW of Unalaska, Alaska

Magnitude

1.6 (ml), micro

Local time

Wed, Oct 22, 2025, 6:52 PM AKDT

UTC

2025-10-23 02:52:51 UTC

Depth

8.9 km (5.5 mi), shallow

Epicenter

53.763° N, 166.604° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.5 km horizontally, 0.4 km in depth

Magnitude uncertainty

±0.34

Depth from

From location

Station coverage gap

232°, poorly surrounded by stations

Stations used

13

• Unalaska, AlaskaPopulation 4,491. Forecast13 kmSSW

After

1. 3.658 km SE of Akutan, AlaskaSat, Oct 25, 7:33 PM AKDT · 340 days ago · 72 km deep · 90 km away
2. 2.472 km SW of Unalaska, AlaskaMon, Nov 10, 1:52 AM AKST · 325 days ago · 0 km deep · 62 km away
3. 2.642 km NNW of Dutch Harbor, AlaskaWed, Nov 12, 8:59 PM AKST · 322 days ago · 127 km deep · 56 km away
4. 2.175 km SW of Unalaska, AlaskaThu, Nov 13, 5:58 AM AKST · 321 days ago · 15 km deep · 64 km away
5. 2.419 km SE of Akutan, AlaskaThu, Nov 13, 9:10 AM AKST · 321 days ago · 120 km deep · 77 km away
6. 2.344 km SSE of Akutan, AlaskaMon, Nov 17, 10:05 PM AKST · 317 days ago · 55 km deep · 66 km away
7. 2.465 km SE of Unalaska, AlaskaTue, Nov 18, 8:46 PM AKST · 316 days ago · 23 km deep · 62 km away
8. 2.373 km WSW of Unalaska, AlaskaThu, Nov 20, 8:28 AM AKST · 314 days ago · 11 km deep · 63 km away
9. 2.195 km SSE of Akutan, AlaskaThu, Nov 20, 7:50 PM AKST · 314 days ago · 15 km deep · 97 km away
10. 1.87 km N of Dutch Harbor, AlaskaThu, Nov 20, 11:55 PM AKST · 314 days ago · 10 km deep · 22 km away
11. 3.730 km S of Unalaska, AlaskaFri, Nov 21, 4:30 AM AKST · 313 days ago · 76 km deep · 18 km away
12. 2.775 km SW of Unalaska, AlaskaFri, Nov 21, 6:05 AM AKST · 313 days ago · 10 km deep · 64 km away
13. 2.174 km SW of Unalaska, AlaskaFri, Nov 21, 6:09 AM AKST · 313 days ago · 17 km deep · 63 km away
14. 2.579 km S of Unalaska, AlaskaFri, Nov 21, 6:11 PM AKST · 313 days ago · 35 km deep · 66 km away
15. 2.468 km SSE of Akutan, AlaskaSat, Nov 22, 1:44 PM AKST · 312 days ago · 51 km deep · 86 km away
16. 2.393 km SSW of Unalaska, AlaskaSat, Nov 22, 2:31 PM AKST · 312 days ago · 29 km deep · 81 km away
17. 2.275 km SW of Unalaska, AlaskaSun, Nov 23, 3:44 AM AKST · 311 days ago · 14 km deep · 65 km away
18. 1.736 km S of Unalaska, AlaskaSun, Nov 23, 4:57 PM AKST · 311 days ago · 71 km deep · 24 km away
19. 3.028 km S of Unalaska, AlaskaSun, Nov 23, 5:25 PM AKST · 311 days ago · 76 km deep · 18 km away
20. 2.156 km SW of Unalaska, AlaskaSun, Nov 23, 8:17 PM AKST · 311 days ago · 10 km deep · 45 km away
21. 2.845 km SE of Akutan, AlaskaTue, Nov 25, 11:17 AM AKST · 309 days ago · 66 km deep · 91 km away
22. 2.488 km S of Unalaska, AlaskaWed, Nov 26, 2:40 AM AKST · 309 days ago · 24 km deep · 76 km away
23. 2.277 km SSE of Akutan, AlaskaWed, Nov 26, 8:21 AM AKST · 308 days ago · 48 km deep · 96 km away
24. 2.485 km SSE of Akutan, AlaskaWed, Nov 26, 10:33 PM AKST · 308 days ago · 21 km deep · 98 km away
25. 1.977 km SSE of Akutan, AlaskaThu, Nov 27, 11:41 AM AKST · 307 days ago · 50 km deep · 92 km away
26. 2.376 km SSE of Akutan, AlaskaThu, Nov 27, 12:51 PM AKST · 307 days ago · 45 km deep · 91 km away
27. 2.379 km SSE of Akutan, AlaskaThu, Nov 27, 6:34 PM AKST · 307 days ago · 35 km deep · 90 km away
28. 2.8110 km S of Unalaska, AlaskaThu, Nov 27, 8:31 PM AKST · 307 days ago · 10 km deep · 97 km away
29. 1.959 km S of Akutan, AlaskaThu, Nov 27, 9:28 PM AKST · 307 days ago · 14 km deep · 59 km away
30. 3.072 km SSE of Akutan, AlaskaFri, Nov 28, 12:52 AM AKST · 307 days ago · 35 km deep · 93 km away
31. 2.476 km SSE of Akutan, AlaskaFri, Nov 28, 2:57 AM AKST · 307 days ago · 24 km deep · 95 km away
32. 1.873 km WSW of Unalaska, AlaskaFri, Nov 28, 3:44 AM AKST · 306 days ago · 10 km deep · 64 km away
33. 3.180 km SE of Unalaska, AlaskaSat, Nov 29, 11:33 AM AKST · 305 days ago · 17 km deep · 75 km away
34. 1.990 km S of Unalaska, AlaskaSat, Nov 29, 11:54 PM AKST · 305 days ago · 35 km deep · 77 km away
35. 2.380 km SSE of Akutan, AlaskaSun, Nov 30, 1:30 AM AKST · 305 days ago · 10 km deep · 87 km away
36. 2.886 km SSE of Akutan, AlaskaSun, Nov 30, 1:38 AM AKST · 305 days ago · 10 km deep · 88 km away
37. 2.347 km ESE of Akutan, AlaskaSun, Nov 30, 1:45 PM AKST · 304 days ago · 61 km deep · 100 km away
38. 2.466 km SE of Unalaska, AlaskaSun, Nov 30, 2:21 PM AKST · 304 days ago · 5 km deep · 64 km away
39. 2.481 km S of Unalaska, AlaskaSun, Nov 30, 9:56 PM AKST · 304 days ago · 35 km deep · 69 km away
40. 2.165 km SE of Unalaska, AlaskaMon, Dec 1, 1:19 AM AKST · 304 days ago · 24 km deep · 62 km away
41. 3.089 km SSE of Akutan, AlaskaTue, Dec 2, 2:03 AM AKST · 303 days ago · 32 km deep · 94 km away
42. 3.294 km S of Unalaska, AlaskaWed, Dec 3, 9:00 AM AKST · 301 days ago · 36 km deep · 82 km away
43. 2.270 km SSE of Akutan, AlaskaWed, Dec 3, 6:01 PM AKST · 301 days ago · 51 km deep · 80 km away
44. 2.031 km ESE of Unalaska, AlaskaThu, Dec 4, 9:51 PM AKST · 300 days ago · 79 km deep · 33 km away
45. 2.483 km S of Unalaska, AlaskaFri, Dec 5, 6:25 PM AKST · 299 days ago · 20 km deep · 70 km away
46. 2.467 km SE of Unalaska, AlaskaSat, Dec 6, 4:31 PM AKST · 298 days ago · 22 km deep · 63 km away
47. 2.976 km SSE of Akutan, AlaskaMon, Dec 8, 3:00 AM AKST · 297 days ago · 35 km deep · 93 km away
48. 2.282 km S of Unalaska, AlaskaMon, Dec 8, 10:37 PM AKST · 296 days ago · 18 km deep · 69 km away
49. 2.478 km SE of Unalaska, AlaskaTue, Dec 9, 9:41 AM AKST · 295 days ago · 12 km deep · 74 km away
50. 2.372 km SE of Unalaska, AlaskaTue, Dec 9, 10:00 AM AKST · 295 days ago · 49 km deep · 69 km away
51. 1.86 km ENE of Unalaska, AlaskaTue, Dec 9, 11:13 AM AKST · 295 days ago · 13 km deep · 18 km away
52. 2.358 km SSW of Unalaska, AlaskaTue, Dec 9, 3:38 PM AKST · 295 days ago · 85 km deep · 45 km away
53. 2.273 km WSW of Unalaska, AlaskaThu, Dec 11, 6:11 PM AKST · 293 days ago · 18 km deep · 64 km away
54. 2.046 km SE of Akutan, AlaskaThu, Dec 11, 9:41 PM AKST · 293 days ago · 65 km deep · 89 km away
55. 2.076 km SSE of Unalaska, AlaskaThu, Dec 11, 10:42 PM AKST · 293 days ago · 24 km deep · 66 km away
56. 2.381 km SSW of Unalaska, AlaskaFri, Dec 12, 9:52 AM AKST · 292 days ago · 45 km deep · 68 km away
57. 3.094 km SSW of Unalaska, AlaskaSat, Dec 13, 8:30 PM AKST · 291 days ago · 53 km deep · 81 km away
58. 2.488 km SSW of Unalaska, AlaskaSun, Dec 14, 5:16 PM AKST · 290 days ago · 43 km deep · 75 km away
59. 3.132 km SSE of Unalaska, AlaskaMon, Dec 15, 3:37 PM AKST · 289 days ago · 65 km deep · 23 km away
60. 3.533 km SSE of Unalaska, AlaskaTue, Dec 16, 9:01 AM AKST · 288 days ago · 70 km deep · 24 km away

The first 60 of 69.

Before

1. 1.641 km SE of Akutan, AlaskaSat, Oct 18, 12:35 PM AKDT · 347 days ago · 51 km deep · 85 km away
2. 2.8101 km S of Unalaska, AlaskaFri, Oct 17, 11:16 PM AKDT · 348 days ago · 35 km deep · 90 km away
3. 1.69 km N of Dutch Harbor, AlaskaFri, Oct 17, 8:22 PM AKDT · 348 days ago · 7 km deep · 24 km away
4. 5.149 km S of Akutan, AlaskaFri, Oct 17, 7:48 AM AKDT · 348 days ago · 85 km deep · 51 km away · felt by 20 · tsunami flag
5. 3.765 km SE of Unalaska, AlaskaSat, Oct 4, 3:28 PM AKDT · 361 days ago · 53 km deep · 60 km away
6. 1.753 km SW of Unalaska, AlaskaSat, Sep 27, 12:22 PM AKDT · 368 days ago · 15 km deep · 43 km away
7. 2.924 km ENE of Dutch Harbor, AlaskaFri, Sep 26, 11:14 PM AKDT · 369 days ago · 127 km deep · 37 km away
8. 2.111 km NW of Dutch Harbor, AlaskaMon, Sep 22, 11:25 PM AKDT · 373 days ago · 11 km deep · 22 km away

From the USGS Earthquake Hazards Program and its partner networks, event av93838971. Read Thu, Oct 1, 2026, 12:06 AM UTC.