M1.6 earthquake 27 km SW of Atka, Alaska

Magnitude

1.6 (ml), micro

Local time

Sun, Oct 31, 2021, 3:22 AM HADT

UTC

2021-10-31 12:22:59 UTC

Depth

67.3 km (41.8 mi), shallow

Epicenter

52.005° N, 174.450° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Stations used

17

After

1. 1.980 km SSW of Atka, AlaskaSun, Oct 31, 5:53 AM HADT · 1793 days ago · 29 km deep · 54 km away
2. 2.7108 km S of Atka, AlaskaSun, Oct 31, 5:56 AM HADT · 1793 days ago · 28 km deep · 86 km away
3. 2.790 km SSW of Atka, AlaskaSun, Oct 31, 6:04 AM HADT · 1793 days ago · 35 km deep · 65 km away
4. 4.097 km S of Atka, AlaskaTue, Nov 2, 9:14 AM HADT · 1791 days ago · 12 km deep · 79 km away
5. 3.983 km SSE of Atka, AlaskaTue, Nov 2, 11:41 PM HADT · 1790 days ago · 35 km deep · 71 km away
6. 2.483 km S of Atka, AlaskaWed, Nov 3, 1:11 AM HADT · 1790 days ago · 25 km deep · 61 km away
7. 2.675 km SSW of Atka, AlaskaWed, Nov 3, 8:06 PM HADT · 1789 days ago · 35 km deep · 48 km away
8. 2.5103 km ESE of Adak, AlaskaThu, Nov 4, 12:31 PM HADT · 1788 days ago · 35 km deep · 79 km away
9. 1.872 km SW of Atka, AlaskaFri, Nov 5, 4:24 AM HADT · 1788 days ago · 17 km deep · 45 km away
10. 2.061 km SW of Atka, AlaskaMon, Nov 8, 5:49 AM HAST · 1785 days ago · 63 km deep · 35 km away
11. 3.0102 km S of Atka, AlaskaMon, Nov 8, 5:04 PM HAST · 1784 days ago · 10 km deep · 83 km away
12. 2.059 km SSW of Atka, AlaskaThu, Nov 11, 11:39 AM HAST · 1781 days ago · 17 km deep · 34 km away
13. 1.757 km WSW of Atka, AlaskaFri, Nov 12, 5:19 PM HAST · 1780 days ago · 75 km deep · 38 km away
14. 2.276 km NE of Adak, AlaskaFri, Nov 12, 7:22 PM HAST · 1780 days ago · 214 km deep · 93 km away
15. 2.034 km WSW of Atka, AlaskaFri, Nov 12, 8:19 PM HAST · 1780 days ago · 88 km deep · 18 km away
16. 1.976 km ESE of Adak, AlaskaSat, Nov 13, 2:52 AM HAST · 1780 days ago · 57 km deep · 84 km away
17. 2.142 km ESE of Atka, AlaskaSat, Nov 13, 2:46 PM HAST · 1779 days ago · 15 km deep · 57 km away
18. 4.058 km NNW of Atka, AlaskaSun, Nov 14, 11:47 AM HAST · 1778 days ago · 211 km deep · 78 km away
19. 1.771 km SW of Atka, AlaskaSun, Nov 14, 9:44 PM HAST · 1778 days ago · 35 km deep · 44 km away
20. 1.773 km WSW of Atka, AlaskaMon, Nov 15, 10:08 PM HAST · 1777 days ago · 74 km deep · 53 km away
21. 2.949 km SW of Atka, AlaskaTue, Nov 16, 2:38 AM HAST · 1777 days ago · 72 km deep · 23 km away
22. 1.951 km ESE of Atka, AlaskaTue, Nov 16, 4:26 AM HAST · 1777 days ago · 63 km deep · 67 km away
23. 1.657 km WSW of Atka, AlaskaTue, Nov 16, 8:58 PM HAST · 1776 days ago · 70 km deep · 35 km away
24. 2.087 km SW of Atka, AlaskaWed, Nov 17, 12:07 AM HAST · 1776 days ago · 15 km deep · 60 km away
25. 2.847 km S of Atka, AlaskaWed, Nov 17, 1:00 AM HAST · 1776 days ago · 68 km deep · 36 km away
26. 1.817 km SSW of Atka, AlaskaWed, Nov 17, 4:52 PM HAST · 1775 days ago · 76 km deep · 13 km away
27. 1.596 km ESE of Adak, AlaskaWed, Nov 17, 10:43 PM HAST · 1775 days ago · 22 km deep · 78 km away
28. 1.952 km SE of Atka, AlaskaThu, Nov 18, 1:56 AM HAST · 1775 days ago · 55 km deep · 52 km away
29. 2.273 km ENE of Adak, AlaskaThu, Nov 18, 12:05 PM HAST · 1774 days ago · 170 km deep · 84 km away
30. 1.951 km SSW of Atka, AlaskaThu, Nov 18, 1:35 PM HAST · 1774 days ago · 23 km deep · 25 km away
31. 1.967 km ENE of Adak, AlaskaThu, Nov 18, 4:11 PM HAST · 1774 days ago · 146 km deep · 86 km away
32. 1.824 km S of Atka, AlaskaThu, Nov 18, 8:12 PM HAST · 1774 days ago · 61 km deep · 22 km away
33. 1.958 km E of Adak, AlaskaFri, Nov 19, 8:55 AM HAST · 1774 days ago · 81 km deep · 92 km away
34. 1.789 km SW of Atka, AlaskaFri, Nov 19, 10:21 AM HAST · 1773 days ago · 31 km deep · 63 km away
35. 1.992 km SW of Atka, AlaskaFri, Nov 19, 9:29 PM HAST · 1773 days ago · 34 km deep · 65 km away
36. 1.915 km SSW of Atka, AlaskaSun, Nov 21, 8:11 PM HAST · 1771 days ago · 85 km deep · 14 km away
37. 2.068 km ENE of Adak, AlaskaThu, Nov 25, 6:56 AM HAST · 1768 days ago · 144 km deep · 85 km away
38. 2.097 km S of Atka, AlaskaFri, Nov 26, 7:32 AM HAST · 1767 days ago · 16 km deep · 83 km away
39. 1.878 km E of Adak, AlaskaFri, Nov 26, 9:28 PM HAST · 1766 days ago · 30 km deep · 76 km away
40. 3.346 km S of Atka, AlaskaSat, Nov 27, 7:39 PM HAST · 1765 days ago · 56 km deep · 33 km away
41. 2.646 km SW of Atka, AlaskaSat, Nov 27, 10:16 PM HAST · 1765 days ago · 14 km deep · 21 km away
42. 3.568 km S of Atka, AlaskaMon, Nov 29, 2:13 AM HAST · 1764 days ago · 91 km deep · 52 km away
43. 1.951 km ENE of Adak, AlaskaMon, Nov 29, 9:24 PM HAST · 1763 days ago · 89 km deep · 99 km away
44. 1.797 km ESE of Adak, AlaskaTue, Nov 30, 10:01 PM HAST · 1762 days ago · 13 km deep · 82 km away
45. 2.980 km ESE of Adak, AlaskaWed, Dec 1, 1:55 AM HAST · 1762 days ago · 34 km deep · 86 km away
46. 3.515 km NW of Atka, AlaskaWed, Dec 1, 8:48 AM HAST · 1762 days ago · 178 km deep · 34 km away
47. 3.0Andreanof Islands, Aleutian Islands, AlaskaWed, Dec 1, 5:49 PM HAST · 1761 days ago · 35 km deep · 86 km away
48. 3.9112 km SSW of Atka, AlaskaThu, Dec 2, 9:00 AM HAST · 1761 days ago · 26 km deep · 87 km away
49. 2.9Andreanof Islands, Aleutian Islands, AlaskaThu, Dec 2, 11:16 AM HAST · 1760 days ago · 153 km deep · 86 km away
50. 4.3107 km SSW of Atka, AlaskaThu, Dec 2, 11:42 AM HAST · 1760 days ago · 32 km deep · 82 km away
51. 2.6119 km SSW of Atka, AlaskaThu, Dec 2, 11:49 AM HAST · 1760 days ago · 24 km deep · 94 km away
52. 2.1113 km SSW of Atka, AlaskaThu, Dec 2, 11:54 AM HAST · 1760 days ago · 24 km deep · 88 km away
53. 3.6107 km SSW of Atka, AlaskaThu, Dec 2, 11:55 AM HAST · 1760 days ago · 12 km deep · 82 km away
54. 3.0111 km SSW of Atka, AlaskaThu, Dec 2, 1:03 PM HAST · 1760 days ago · 11 km deep · 86 km away
55. 2.879 km ESE of Atka, AlaskaFri, Dec 3, 2:32 AM HAST · 1760 days ago · 32 km deep · 89 km away
56. 2.956 km N of Atka, AlaskaFri, Dec 3, 5:35 PM HAST · 1759 days ago · 179 km deep · 80 km away
57. 4.373 km SSE of Atka, AlaskaThu, Dec 9, 9:12 PM HAST · 1753 days ago · 43 km deep · 61 km away
58. 2.07 km E of Atka, AlaskaThu, Dec 9, 9:40 PM HAST · 1753 days ago · 6 km deep · 33 km away
59. 3.274 km ENE of Adak, AlaskaFri, Dec 10, 10:25 PM HAST · 1752 days ago · 185 km deep · 81 km away
60. 2.792 km SE of Adak, AlaskaSat, Dec 11, 6:46 AM HAST · 1752 days ago · 35 km deep · 99 km away

The first 60 of 75.

Before

1. 2.345 km S of Atka, AlaskaSun, Oct 31, 12:36 AM HADT · 1793 days ago · 223 km deep · 27 km away
2. 2.678 km E of Adak, AlaskaFri, Oct 29, 9:40 AM HADT · 1795 days ago · 75 km deep · 73 km away
3. 1.881 km ESE of Adak, AlaskaThu, Oct 28, 10:29 PM HADT · 1795 days ago · 55 km deep · 82 km away
4. 2.062 km E of Adak, AlaskaThu, Oct 28, 1:08 PM HADT · 1795 days ago · 74 km deep · 88 km away
5. 4.069 km SSE of Atka, AlaskaThu, Oct 28, 9:38 AM HADT · 1796 days ago · 53 km deep · 58 km away
6. 1.985 km ESE of Adak, AlaskaThu, Oct 28, 4:08 AM HADT · 1796 days ago · 44 km deep · 79 km away
7. 1.982 km ESE of Adak, AlaskaWed, Oct 27, 9:07 PM HADT · 1796 days ago · 48 km deep · 87 km away
8. 2.974 km W of Atka, AlaskaTue, Oct 26, 3:37 PM HADT · 1797 days ago · 252 km deep · 58 km away
9. 1.833 km SSW of Atka, AlaskaTue, Oct 26, 12:08 AM HADT · 1798 days ago · 71 km deep · 9 km away
10. 2.929 km SSW of Atka, AlaskaMon, Oct 25, 7:25 PM HADT · 1798 days ago · 10 km deep · 12 km away
11. 1.889 km SW of Atka, AlaskaMon, Oct 25, 12:09 PM HADT · 1798 days ago · 26 km deep · 62 km away
12. 2.081 km ENE of Adak, AlaskaSat, Oct 23, 5:38 PM HADT · 1800 days ago · 115 km deep · 71 km away
13. 2.469 km WNW of Atka, AlaskaFri, Oct 22, 7:00 PM HADT · 1801 days ago · 120 km deep · 65 km away
14. 3.693 km ESE of Adak, AlaskaWed, Oct 20, 8:49 AM HADT · 1804 days ago · 24 km deep · 70 km away
15. 2.885 km ESE of Adak, AlaskaFri, Oct 15, 11:13 AM HADT · 1808 days ago · 52 km deep · 75 km away
16. 1.822 km SW of Atka, AlaskaFri, Oct 15, 6:50 AM HADT · 1809 days ago · 72 km deep · 8 km away
17. 1.959 km WNW of Atka, AlaskaFri, Oct 15, 5:05 AM HADT · 1809 days ago · 108 km deep · 60 km away
18. 1.890 km ESE of Adak, AlaskaThu, Oct 14, 11:52 PM HADT · 1809 days ago · 54 km deep · 74 km away
19. 3.134 km WSW of Atka, AlaskaThu, Oct 14, 2:52 AM HADT · 1810 days ago · 138 km deep · 13 km away
20. 4.981 km S of Atka, AlaskaMon, Oct 11, 9:25 AM HADT · 1813 days ago · 35 km deep · 58 km away

From the USGS Earthquake Hazards Program and its partner networks, event ak021dyynmw5. Read Mon, Sep 28, 2026, 7:01 AM UTC.