M1.8 earthquake 133 km SW of Adak, Alaska

Magnitude

1.8 (ml), micro

Local time

Sun, Oct 3, 2021, 12:33 PM HADT

UTC

2021-10-03 21:33:26 UTC

Depth

25.3 km (15.7 mi), shallow

Epicenter

51.209° N, 178.241° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Stations used

18

After

1. 3.1140 km SW of Adak, AlaskaTue, Oct 5, 5:42 AM HADT · 1815 days ago · 28 km deep · 11 km away
2. 1.9132 km WSW of Adak, AlaskaTue, Oct 5, 9:08 AM HADT · 1815 days ago · 7 km deep · 49 km away
3. 2.3130 km SW of Adak, AlaskaTue, Oct 5, 12:57 PM HADT · 1814 days ago · 28 km deep · 19 km away
4. 2.5134 km WSW of Adak, AlaskaTue, Oct 5, 6:49 PM HADT · 1814 days ago · 21 km deep · 49 km away
5. 2.5194 km WSW of Adak, AlaskaWed, Oct 6, 5:45 PM HADT · 1813 days ago · 18 km deep · 65 km away
6. 1.9Andreanof Islands, Aleutian Islands, AlaskaWed, Oct 6, 8:43 PM HADT · 1813 days ago · 24 km deep · 84 km away
7. 1.8112 km SW of Adak, AlaskaWed, Oct 6, 8:53 PM HADT · 1813 days ago · 18 km deep · 45 km away
8. 1.6111 km SW of Adak, AlaskaWed, Oct 6, 8:56 PM HADT · 1813 days ago · 26 km deep · 40 km away
9. 1.6106 km SW of Adak, AlaskaWed, Oct 6, 9:54 PM HADT · 1813 days ago · 23 km deep · 30 km away
10. 1.6111 km SW of Adak, AlaskaWed, Oct 6, 10:02 PM HADT · 1813 days ago · 15 km deep · 36 km away
11. 1.8121 km SW of Adak, AlaskaWed, Oct 6, 11:19 PM HADT · 1813 days ago · 21 km deep · 16 km away
12. 2.5105 km WSW of Adak, AlaskaThu, Oct 7, 2:25 AM HADT · 1813 days ago · 48 km deep · 32 km away
13. 2.9132 km WSW of Adak, AlaskaThu, Oct 7, 9:36 PM HADT · 1812 days ago · 10 km deep · 47 km away
14. 1.981 km WSW of Adak, AlaskaThu, Oct 7, 10:05 PM HADT · 1812 days ago · 30 km deep · 53 km away
15. 3.270 km SW of Adak, AlaskaFri, Oct 8, 7:10 AM HADT · 1812 days ago · 49 km deep · 65 km away
16. 1.7163 km WSW of Adak, AlaskaFri, Oct 8, 9:25 AM HADT · 1812 days ago · 16 km deep · 63 km away
17. 1.745 km W of Adak, AlaskaSat, Oct 9, 2:34 AM HADT · 1811 days ago · 92 km deep · 95 km away
18. 2.6128 km WSW of Adak, AlaskaSat, Oct 9, 8:09 PM HADT · 1810 days ago · 19 km deep · 33 km away
19. 2.6154 km WSW of Adak, AlaskaSat, Oct 9, 10:07 PM HADT · 1810 days ago · 21 km deep · 51 km away
20. 1.782 km W of Adak, AlaskaSun, Oct 10, 7:57 AM HADT · 1810 days ago · 10 km deep · 78 km away
21. 2.5182 km WSW of Adak, AlaskaSun, Oct 10, 2:04 PM HADT · 1809 days ago · 29 km deep · 59 km away
22. 3.0116 km WSW of Adak, AlaskaSun, Oct 10, 4:26 PM HADT · 1809 days ago · 34 km deep · 26 km away
23. 1.769 km WSW of Adak, AlaskaSun, Oct 10, 11:08 PM HADT · 1809 days ago · 25 km deep · 66 km away
24. 2.961 km SSW of Adak, AlaskaMon, Oct 11, 12:26 AM HADT · 1809 days ago · 51 km deep · 96 km away
25. 1.990 km SW of Adak, AlaskaWed, Oct 13, 3:46 AM HADT · 1807 days ago · 16 km deep · 44 km away
26. 2.7157 km WSW of Adak, AlaskaThu, Oct 14, 3:24 AM HADT · 1806 days ago · 95 km deep · 62 km away
27. 3.0199 km WSW of Adak, AlaskaThu, Oct 14, 3:39 AM HADT · 1806 days ago · 10 km deep · 67 km away
28. 3.2157 km SW of Adak, AlaskaThu, Oct 14, 4:17 AM HADT · 1806 days ago · 33 km deep · 48 km away
29. 1.8Andreanof Islands, Aleutian Islands, AlaskaFri, Oct 15, 3:14 AM HADT · 1805 days ago · 26 km deep · 47 km away
30. 2.9139 km W of Adak, AlaskaFri, Oct 15, 9:55 AM HADT · 1805 days ago · 24 km deep · 80 km away
31. 1.652 km SW of Adak, AlaskaFri, Oct 15, 11:10 AM HADT · 1805 days ago · 39 km deep · 87 km away
32. 3.2181 km WSW of Adak, AlaskaSat, Oct 16, 5:11 AM HADT · 1804 days ago · 30 km deep · 65 km away
33. 4.1194 km WSW of Adak, AlaskaSun, Oct 17, 4:08 PM HADT · 1802 days ago · 42 km deep · 65 km away
34. 3.1Andreanof Islands, Aleutian Islands, AlaskaFri, Oct 22, 3:33 AM HADT · 1798 days ago · 146 km deep · 96 km away
35. 1.7117 km WSW of Adak, AlaskaFri, Oct 22, 10:16 PM HADT · 1797 days ago · 29 km deep · 24 km away
36. 1.8123 km WSW of Adak, AlaskaFri, Oct 22, 11:27 PM HADT · 1797 days ago · 17 km deep · 19 km away
37. 1.854 km SW of Adak, AlaskaSat, Oct 23, 3:06 AM HADT · 1797 days ago · 43 km deep · 86 km away
38. 2.072 km W of Adak, AlaskaSun, Oct 24, 7:10 PM HADT · 1795 days ago · 77 km deep · 73 km away
39. 1.9172 km WSW of Adak, AlaskaMon, Oct 25, 4:43 AM HADT · 1795 days ago · 22 km deep · 56 km away
40. 1.8126 km WSW of Adak, AlaskaMon, Oct 25, 5:34 AM HADT · 1795 days ago · 11 km deep · 44 km away
41. 2.0108 km W of Adak, AlaskaMon, Oct 25, 9:12 AM HADT · 1795 days ago · 83 km deep · 73 km away
42. 1.7127 km WSW of Adak, AlaskaMon, Oct 25, 9:19 AM HADT · 1795 days ago · 7 km deep · 41 km away
43. 1.760 km W of Adak, AlaskaTue, Oct 26, 3:02 AM HADT · 1794 days ago · 89 km deep · 86 km away
44. 3.2141 km WSW of Adak, AlaskaWed, Oct 27, 3:58 AM HADT · 1793 days ago · 31 km deep · 12 km away
45. 3.6204 km WSW of Adak, AlaskaWed, Oct 27, 8:50 AM HADT · 1793 days ago · 35 km deep · 85 km away
46. 1.9123 km SW of Adak, AlaskaWed, Oct 27, 11:47 PM HADT · 1792 days ago · 22 km deep · 19 km away
47. 1.7100 km WSW of Adak, AlaskaThu, Oct 28, 12:22 AM HADT · 1792 days ago · 63 km deep · 40 km away
48. 3.2118 km SSW of Adak, AlaskaThu, Oct 28, 2:06 AM HADT · 1792 days ago · 33 km deep · 87 km away
49. 3.6Andreanof Islands, Aleutian Islands, AlaskaThu, Oct 28, 11:23 AM HADT · 1792 days ago · 82 km deep · 48 km away
50. 1.972 km WSW of Adak, AlaskaThu, Oct 28, 2:26 PM HADT · 1791 days ago · 66 km deep · 65 km away
51. 1.752 km SW of Adak, AlaskaThu, Oct 28, 4:41 PM HADT · 1791 days ago · 38 km deep · 87 km away
52. 3.8119 km WSW of Adak, AlaskaFri, Oct 29, 2:47 AM HADT · 1791 days ago · 88 km deep · 39 km away
53. 1.8147 km WSW of Adak, AlaskaSat, Oct 30, 6:09 AM HADT · 1790 days ago · 29 km deep · 19 km away
54. 1.8135 km SW of Adak, AlaskaSun, Oct 31, 12:10 AM HADT · 1789 days ago · 26 km deep · 16 km away
55. 3.775 km SW of Adak, AlaskaSun, Oct 31, 4:51 AM HADT · 1789 days ago · 35 km deep · 64 km away
56. 1.6Andreanof Islands, Aleutian Islands, AlaskaMon, Nov 1, 10:44 AM HADT · 1788 days ago · 8 km deep · 78 km away
57. 2.076 km WSW of Adak, AlaskaWed, Nov 3, 6:05 PM HADT · 1785 days ago · 26 km deep · 57 km away
58. 3.6108 km WSW of Adak, AlaskaThu, Nov 4, 6:43 AM HADT · 1785 days ago · 34 km deep · 26 km away
59. 1.684 km W of Adak, AlaskaThu, Nov 4, 7:26 AM HADT · 1785 days ago · 13 km deep · 77 km away
60. 1.5100 km WSW of Adak, AlaskaThu, Nov 4, 8:15 PM HADT · 1784 days ago · 22 km deep · 52 km away

The first 60 of 140.

Before

1. 1.9175 km WSW of Adak, AlaskaSun, Oct 3, 2:13 AM HADT · 1817 days ago · 20 km deep · 45 km away
2. 1.5174 km WSW of Adak, AlaskaSat, Oct 2, 10:24 PM HADT · 1817 days ago · 8 km deep · 63 km away
3. 3.9116 km WSW of Adak, AlaskaSat, Oct 2, 4:45 PM HADT · 1817 days ago · 35 km deep · 17 km away
4. 2.7116 km WSW of Adak, AlaskaSat, Oct 2, 10:35 AM HADT · 1818 days ago · 13 km deep · 32 km away
5. 1.7144 km WSW of Adak, AlaskaSat, Oct 2, 8:43 AM HADT · 1818 days ago · 24 km deep · 19 km away
6. 1.8207 km WSW of Adak, AlaskaFri, Oct 1, 11:11 PM HADT · 1818 days ago · 8 km deep · 77 km away
7. 2.8209 km WSW of Adak, AlaskaFri, Oct 1, 12:39 AM HADT · 1819 days ago · 5 km deep · 77 km away
8. 2.3172 km WSW of Adak, AlaskaThu, Sep 30, 10:30 PM HADT · 1819 days ago · 21 km deep · 56 km away
9. 2.1102 km WSW of Adak, AlaskaThu, Sep 30, 2:54 AM HADT · 1820 days ago · 8 km deep · 43 km away
10. 3.1135 km WSW of Adak, AlaskaWed, Sep 29, 12:55 AM HADT · 1821 days ago · 30 km deep · 2 km away
11. 2.3179 km SSW of Adak, AlaskaWed, Sep 29, 12:04 AM HADT · 1821 days ago · 25 km deep · 81 km away
12. 2.5114 km W of Adak, AlaskaTue, Sep 28, 11:31 PM HADT · 1821 days ago · 137 km deep · 95 km away
13. 1.8Andreanof Islands, Aleutian Islands, AlaskaTue, Sep 28, 11:23 PM HADT · 1821 days ago · 15 km deep · 87 km away
14. 1.663 km SSW of Adak, AlaskaTue, Sep 28, 12:25 AM HADT · 1822 days ago · 20 km deep · 84 km away
15. 3.9177 km SSW of Adak, AlaskaMon, Sep 27, 1:03 PM HADT · 1822 days ago · 10 km deep · 78 km away
16. 1.7Andreanof Islands, Aleutian Islands, AlaskaMon, Sep 27, 9:28 AM HADT · 1823 days ago · 21 km deep · 59 km away
17. 1.8133 km W of Adak, AlaskaMon, Sep 27, 9:28 AM HADT · 1823 days ago · 8 km deep · 58 km away
18. 3.1179 km WSW of Adak, AlaskaSun, Sep 26, 7:20 PM HADT · 1823 days ago · 63 km deep · 65 km away
19. 3.1190 km WSW of Adak, AlaskaSun, Sep 26, 4:56 AM HADT · 1824 days ago · 32 km deep · 64 km away
20. 2.1110 km SW of Adak, AlaskaSat, Sep 25, 5:21 PM HADT · 1824 days ago · 26 km deep · 30 km away

From the USGS Earthquake Hazards Program and its partner networks, event ak021cot10ot. Read Thu, Sep 24, 2026, 9:06 AM UTC.