M3.6 earthquake 28 km SW of Atka, Alaska

Magnitude

3.6 (mb, body-wave), minor

Magnitude from

USGS National Earthquake Information Center

Local time

Sat, Oct 22, 2016, 12:31 AM HADT

UTC

2016-10-22 09:31:49 UTC

Depth

68.6 km (42.6 mi), shallow

Epicenter

52.051° N, 174.548° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 6.1 km horizontally, 23.0 km in depth

Magnitude uncertainty

±0.12

Depth from

From location

Station coverage gap

189°, poorly surrounded by stations

Stations used

27

After

1. 2.722 km NW of Atka, AlaskaWed, Oct 26, 9:00 AM HADT · 3629 days ago · 196 km deep · 36 km away
2. 5.073 km SE of Atka, AlaskaThu, Oct 27, 4:31 PM HADT · 3627 days ago · 39 km deep · 81 km away
3. 2.787 km S of Atka, AlaskaThu, Oct 27, 9:58 PM HADT · 3627 days ago · 55 km deep · 73 km away
4. 3.778 km SE of Atka, AlaskaFri, Oct 28, 3:36 AM HADT · 3627 days ago · 42 km deep · 85 km away
5. 2.653 km E of Atka, AlaskaFri, Oct 28, 6:30 PM HADT · 3626 days ago · 85 km deep · 80 km away
6. 2.537 km NE of Atka, AlaskaSat, Oct 29, 11:10 AM HADT · 3626 days ago · 85 km deep · 66 km away
7. 2.858 km SSW of Atka, AlaskaSat, Oct 29, 3:44 PM HADT · 3625 days ago · 26 km deep · 41 km away
8. 3.188 km SE of Atka, AlaskaSun, Oct 30, 7:42 PM HADT · 3624 days ago · 33 km deep · 94 km away
9. 2.571 km ESE of Atka, AlaskaSat, Nov 5, 2:28 AM HADT · 3619 days ago · 40 km deep · 90 km away
10. 3.4101 km SW of Atka, AlaskaSun, Nov 6, 7:41 AM HAST · 3618 days ago · 26 km deep · 74 km away
11. 2.372 km SE of Atka, AlaskaMon, Nov 7, 6:54 PM HAST · 3616 days ago · 26 km deep · 85 km away
12. 2.736 km SSW of Atka, AlaskaMon, Nov 7, 10:07 PM HAST · 3616 days ago · 7 km deep · 25 km away
13. 3.636 km SSE of Atka, AlaskaWed, Nov 9, 6:32 PM HAST · 3614 days ago · 43 km deep · 43 km away
14. 4.338 km N of Atka, AlaskaSat, Nov 12, 12:35 PM HAST · 3612 days ago · 140 km deep · 58 km away
15. 4.029 km SSE of Atka, AlaskaSat, Nov 12, 5:30 PM HAST · 3611 days ago · 160 km deep · 34 km away
16. 1.8Andreanof Islands, Aleutian Islands, AlaskaTue, Nov 15, 7:04 PM HAST · 3608 days ago · 7 km deep · 56 km away
17. 2.444 km SE of Atka, AlaskaTue, Nov 15, 9:19 PM HAST · 3608 days ago · 36 km deep · 53 km away
18. 2.666 km ESE of Adak, AlaskaWed, Nov 16, 7:09 AM HAST · 3608 days ago · 41 km deep · 98 km away
19. 2.687 km ESE of Adak, AlaskaThu, Nov 17, 9:16 AM HAST · 3607 days ago · 63 km deep · 88 km away
20. 2.166 km E of Adak, AlaskaFri, Nov 18, 5:21 AM HAST · 3606 days ago · 64 km deep · 79 km away
21. 4.454 km NW of Atka, AlaskaSat, Nov 19, 8:41 AM HAST · 3605 days ago · 150 km deep · 54 km away
22. 5.037 km NW of Atka, AlaskaTue, Nov 22, 9:13 PM HAST · 3601 days ago · 152 km deep · 41 km away · tsunami flag
23. 3.758 km ESE of Atka, AlaskaSat, Nov 26, 4:05 PM HAST · 3597 days ago · 32 km deep · 77 km away
24. 1.977 km WSW of Atka, AlaskaSun, Nov 27, 5:36 PM HAST · 3596 days ago · 55 km deep · 49 km away
25. 2.036 km SSE of Atka, AlaskaSun, Nov 27, 7:23 PM HAST · 3596 days ago · 52 km deep · 40 km away
26. 3.986 km NE of Adak, AlaskaMon, Nov 28, 8:27 PM HAST · 3595 days ago · 235 km deep · 78 km away
27. 3.1111 km SSW of Atka, AlaskaTue, Nov 29, 6:11 AM HAST · 3595 days ago · 17 km deep · 90 km away
28. 2.1100 km S of Atka, AlaskaThu, Dec 1, 3:47 PM HAST · 3592 days ago · 15 km deep · 84 km away
29. 2.260 km ENE of Atka, AlaskaFri, Dec 2, 2:55 AM HAST · 3592 days ago · 40 km deep · 89 km away
30. 2.364 km E of Adak, AlaskaFri, Dec 2, 1:14 PM HAST · 3592 days ago · 23 km deep · 85 km away
31. 3.429 km NE of Atka, AlaskaFri, Dec 2, 1:31 PM HAST · 3592 days ago · 167 km deep · 57 km away
32. 3.036 km WNW of Atka, AlaskaSat, Dec 3, 12:44 AM HAST · 3591 days ago · 227 km deep · 35 km away
33. 3.167 km SSE of Atka, AlaskaMon, Dec 5, 10:51 AM HAST · 3589 days ago · 30 km deep · 68 km away
34. 2.071 km SE of Atka, AlaskaMon, Dec 5, 8:37 PM HAST · 3588 days ago · 20 km deep · 84 km away
35. 3.236 km W of Atka, AlaskaFri, Dec 9, 12:03 PM HAST · 3585 days ago · 198 km deep · 23 km away
36. 2.475 km ESE of Atka, AlaskaFri, Dec 9, 6:47 PM HAST · 3584 days ago · 46 km deep · 93 km away
37. 2.046 km S of Atka, AlaskaMon, Dec 12, 9:47 AM HAST · 3582 days ago · 19 km deep · 34 km away
38. 3.549 km E of Adak, AlaskaMon, Dec 12, 7:10 PM HAST · 3581 days ago · 58 km deep · 98 km away
39. 2.764 km SE of Atka, AlaskaTue, Dec 13, 6:27 AM HAST · 3581 days ago · 19 km deep · 78 km away
40. 2.545 km E of Atka, AlaskaWed, Dec 14, 12:56 PM HAST · 3580 days ago · 81 km deep · 72 km away
41. 2.978 km SW of Atka, AlaskaThu, Dec 15, 9:15 PM HAST · 3578 days ago · 38 km deep · 50 km away
42. 2.259 km ESE of Adak, AlaskaMon, Dec 19, 1:08 PM HAST · 3575 days ago · 39 km deep · 99 km away
43. 4.166 km ENE of Adak, AlaskaTue, Dec 20, 1:22 PM HAST · 3574 days ago · 166 km deep · 83 km away

Before

1. 1.994 km S of Atka, AlaskaSun, Oct 16, 12:34 PM HADT · 3639 days ago · 26 km deep · 80 km away
2. 3.046 km SSW of Atka, AlaskaSun, Oct 16, 3:17 AM HADT · 3639 days ago · 110 km deep · 31 km away
3. 1.873 km SW of Atka, AlaskaFri, Oct 14, 8:21 AM HADT · 3641 days ago · 19 km deep · 45 km away
4. 3.273 km ENE of Adak, AlaskaThu, Oct 13, 5:02 AM HADT · 3642 days ago · 188 km deep · 76 km away
5. 3.536 km NNE of Atka, AlaskaWed, Oct 12, 2:31 AM HADT · 3643 days ago · 216 km deep · 60 km away
6. 2.555 km SE of Atka, AlaskaSun, Oct 9, 3:34 PM HADT · 3645 days ago · 49 km deep · 68 km away
7. 3.272 km ENE of Adak, AlaskaThu, Oct 6, 12:43 PM HADT · 3649 days ago · 70 km deep · 72 km away
8. 3.082 km S of Atka, AlaskaThu, Oct 6, 5:18 AM HADT · 3649 days ago · 19 km deep · 69 km away
9. 2.8118 km SSW of Atka, AlaskaTue, Oct 4, 1:52 PM HADT · 3651 days ago · 20 km deep · 94 km away
10. 2.585 km NW of Atka, AlaskaMon, Oct 3, 1:45 PM HADT · 3652 days ago · 184 km deep · 87 km away
11. 1.748 km SW of Atka, AlaskaSun, Oct 2, 11:38 AM HADT · 3653 days ago · 16 km deep · 22 km away
12. 2.269 km E of Adak, AlaskaThu, Sep 29, 3:18 PM HADT · 3655 days ago · 34 km deep · 81 km away
13. 3.056 km ENE of Adak, AlaskaThu, Sep 29, 2:42 PM HADT · 3656 days ago · 149 km deep · 91 km away
14. 3.981 km S of Atka, AlaskaThu, Sep 29, 10:09 AM HADT · 3656 days ago · 42 km deep · 66 km away
15. 3.070 km ENE of Atka, AlaskaThu, Sep 29, 6:24 AM HADT · 3656 days ago · 124 km deep · 99 km away
16. 2.9Andreanof Islands, Aleutian Islands, AlaskaWed, Sep 28, 9:05 AM HADT · 3657 days ago · 36 km deep · 83 km away
17. 3.180 km S of Atka, AlaskaTue, Sep 27, 7:34 AM HADT · 3658 days ago · 36 km deep · 65 km away
18. 1.850 km ENE of Atka, AlaskaMon, Sep 26, 7:35 PM HADT · 3658 days ago · 21 km deep · 78 km away
19. 2.770 km NE of Adak, AlaskaSat, Sep 24, 9:22 AM HADT · 3661 days ago · 226 km deep · 87 km away
20. 3.1Andreanof Islands, Aleutian Islands, AlaskaThu, Sep 22, 10:06 PM HADT · 3662 days ago · 10 km deep · 82 km away

From the USGS Earthquake Hazards Program and its partner networks, event us100072kp. Read Sat, Oct 3, 2026, 11:23 AM UTC.