M1.8 earthquake 211 km W of Adak, Alaska

Magnitude

1.8 (ml), micro

Local time

Sat, Aug 28, 2021, 6:19 PM HADT

UTC

2021-08-29 03:19:00 UTC

Depth

91.5 km (56.9 mi), intermediate-depth

Epicenter

51.725° N, 179.687° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Stations used

29

After

1. 1.9230 km W of Adak, AlaskaSat, Aug 28, 8:03 PM HADT · 1852 days ago · 93 km deep · 20 km away
2. 2.5141 km WSW of Adak, AlaskaSun, Aug 29, 8:29 PM HADT · 1851 days ago · 30 km deep · 91 km away
3. 1.9192 km W of Adak, AlaskaMon, Aug 30, 12:21 PM HADT · 1851 days ago · 148 km deep · 52 km away
4. 2.0Rat Islands, Aleutian Islands, AlaskaTue, Aug 31, 11:12 AM GMT+12 · 1850 days ago · 93 km deep · 90 km away
5. 1.9243 km W of Adak, AlaskaTue, Aug 31, 3:30 PM GMT+12 · 1850 days ago · 70 km deep · 32 km away
6. 1.7215 km WSW of Adak, AlaskaTue, Aug 31, 9:40 AM HADT · 1850 days ago · 14 km deep · 79 km away
7. 1.9257 km WSW of Adak, AlaskaThu, Sep 2, 6:05 PM GMT+12 · 1848 days ago · 57 km deep · 52 km away
8. 1.5253 km WSW of Adak, AlaskaWed, Sep 1, 7:36 PM GMT-12 · 1848 days ago · 6 km deep · 86 km away
9. 1.6248 km WSW of Adak, AlaskaThu, Sep 2, 7:46 PM GMT+12 · 1848 days ago · 48 km deep · 50 km away
10. 1.6194 km WSW of Adak, AlaskaWed, Sep 1, 11:00 PM HADT · 1848 days ago · 5 km deep · 82 km away
11. 2.6221 km WSW of Adak, AlaskaThu, Sep 2, 3:19 AM HADT · 1848 days ago · 88 km deep · 40 km away
12. 1.5272 km W of Adak, AlaskaFri, Sep 3, 2:34 AM GMT+12 · 1848 days ago · 70 km deep · 62 km away
13. 1.6232 km WSW of Adak, AlaskaFri, Sep 3, 1:30 AM HADT · 1847 days ago · 11 km deep · 30 km away
14. 1.5Andreanof Islands, Aleutian Islands, AlaskaFri, Sep 3, 3:43 AM HADT · 1847 days ago · 42 km deep · 68 km away
15. 1.9232 km WSW of Adak, AlaskaFri, Sep 3, 6:10 AM HADT · 1847 days ago · 7 km deep · 31 km away
16. 1.6234 km WSW of Adak, AlaskaFri, Sep 3, 6:11 AM HADT · 1847 days ago · 13 km deep · 31 km away
17. 1.5124 km WSW of Adak, AlaskaFri, Sep 3, 6:19 AM HADT · 1847 days ago · 7 km deep · 92 km away
18. 1.8231 km WSW of Adak, AlaskaFri, Sep 3, 8:43 AM HADT · 1847 days ago · 13 km deep · 30 km away
19. 1.7271 km W of Adak, AlaskaSat, Sep 4, 5:27 PM GMT+12 · 1846 days ago · 63 km deep · 60 km away
20. 2.5Rat Islands, Aleutian Islands, AlaskaSat, Sep 4, 6:23 PM GMT+12 · 1846 days ago · 95 km deep · 100 km away
21. 1.8124 km WSW of Adak, AlaskaSat, Sep 4, 6:04 PM HADT · 1845 days ago · 70 km deep · 91 km away
22. 1.9134 km W of Adak, AlaskaSat, Sep 4, 10:19 PM HADT · 1845 days ago · 113 km deep · 78 km away
23. 1.7189 km WSW of Adak, AlaskaSun, Sep 5, 12:44 AM HADT · 1845 days ago · 3 km deep · 84 km away
24. 1.6124 km W of Adak, AlaskaSun, Sep 5, 1:14 AM HADT · 1845 days ago · 11 km deep · 87 km away
25. 1.6240 km WSW of Adak, AlaskaSun, Sep 5, 5:52 PM GMT-12 · 1844 days ago · 13 km deep · 66 km away
26. 1.6245 km WSW of Adak, AlaskaSun, Sep 5, 5:54 PM GMT-12 · 1844 days ago · 13 km deep · 66 km away
27. 2.8199 km WSW of Adak, AlaskaMon, Sep 6, 6:00 AM HADT · 1844 days ago · 16 km deep · 90 km away
28. 2.6245 km W of Adak, AlaskaTue, Sep 7, 12:32 PM GMT+12 · 1843 days ago · 174 km deep · 43 km away
29. 1.5225 km W of Adak, AlaskaTue, Sep 7, 5:19 AM HADT · 1843 days ago · 73 km deep · 17 km away
30. 1.7Rat Islands, Aleutian Islands, AlaskaWed, Sep 8, 2:44 PM GMT+12 · 1842 days ago · 82 km deep · 95 km away
31. 2.9177 km WSW of Adak, AlaskaTue, Sep 7, 6:21 PM HADT · 1842 days ago · 30 km deep · 85 km away
32. 1.5185 km W of Adak, AlaskaTue, Sep 7, 8:33 PM HADT · 1842 days ago · 15 km deep · 27 km away
33. 1.6168 km WSW of Adak, AlaskaTue, Sep 7, 11:43 PM HADT · 1842 days ago · 26 km deep · 91 km away
34. 1.5155 km W of Adak, AlaskaWed, Sep 8, 6:01 AM HADT · 1842 days ago · 2 km deep · 55 km away
35. 2.2228 km W of Adak, AlaskaThu, Sep 9, 12:17 PM HADT · 1841 days ago · 149 km deep · 32 km away
36. 3.9250 km W of Adak, AlaskaSat, Sep 11, 2:06 AM GMT+12 · 1840 days ago · 131 km deep · 43 km away
37. 1.7169 km W of Adak, AlaskaFri, Sep 10, 10:30 PM HADT · 1839 days ago · 12 km deep · 42 km away
38. 1.5153 km WSW of Adak, AlaskaSat, Sep 11, 6:04 AM HADT · 1839 days ago · 14 km deep · 67 km away
39. 2.7272 km W of Adak, AlaskaSun, Sep 12, 5:10 PM GMT+12 · 1838 days ago · 75 km deep · 61 km away
40. 1.6146 km W of Adak, AlaskaSun, Sep 12, 6:49 AM HADT · 1838 days ago · 16 km deep · 64 km away
41. 2.7133 km W of Adak, AlaskaSun, Sep 12, 11:47 AM HADT · 1838 days ago · 141 km deep · 80 km away
42. 1.8184 km WSW of Adak, AlaskaMon, Sep 13, 5:14 AM HADT · 1837 days ago · 22 km deep · 77 km away
43. 1.6194 km WSW of Adak, AlaskaMon, Sep 13, 9:09 AM HADT · 1837 days ago · 20 km deep · 51 km away
44. 2.8223 km W of Adak, AlaskaMon, Sep 13, 1:06 PM HADT · 1836 days ago · 78 km deep · 21 km away
45. 2.0133 km W of Adak, AlaskaWed, Sep 15, 7:55 PM HADT · 1834 days ago · 15 km deep · 78 km away
46. 2.1136 km W of Adak, AKWed, Sep 15, 7:55 PM HADT · 1834 days ago · 17 km deep · 76 km away
47. 2.7215 km W of Adak, AlaskaThu, Sep 16, 3:18 AM HADT · 1834 days ago · 73 km deep · 16 km away
48. 2.7201 km WSW of Adak, AlaskaSat, Sep 18, 9:41 PM HADT · 1831 days ago · 16 km deep · 80 km away
49. 2.8220 km WSW of Adak, AlaskaMon, Sep 20, 3:56 AM HADT · 1830 days ago · 22 km deep · 75 km away
50. 2.1135 km W of Adak, AlaskaMon, Sep 20, 7:27 AM HADT · 1830 days ago · 133 km deep · 82 km away
51. 1.9252 km W of Adak, AlaskaTue, Sep 21, 8:56 AM GMT+12 · 1830 days ago · 95 km deep · 43 km away
52. 1.8Rat Islands, Aleutian Islands, AlaskaWed, Sep 22, 4:16 AM GMT+12 · 1829 days ago · 56 km deep · 94 km away
53. 4.0257 km WSW of Adak, AlaskaWed, Sep 22, 6:48 AM GMT+12 · 1829 days ago · 106 km deep · 51 km away
54. 2.0168 km WSW of Adak, AlaskaWed, Sep 22, 8:04 AM HADT · 1828 days ago · 26 km deep · 65 km away
55. 2.5219 km WSW of Adak, AlaskaWed, Sep 22, 12:43 PM HADT · 1827 days ago · 26 km deep · 79 km away
56. 2.7221 km WSW of Adak, AlaskaWed, Sep 22, 2:02 PM HADT · 1827 days ago · 15 km deep · 73 km away
57. 1.9129 km W of Adak, AlaskaWed, Sep 22, 5:02 PM HADT · 1827 days ago · 13 km deep · 83 km away
58. 1.8129 km WSW of Adak, AlaskaWed, Sep 22, 8:38 PM HADT · 1827 days ago · 11 km deep · 89 km away
59. 1.9222 km WSW of Adak, AlaskaThu, Sep 23, 12:30 AM HADT · 1827 days ago · 12 km deep · 28 km away
60. 1.6165 km WSW of Adak, AlaskaThu, Sep 23, 12:37 AM HADT · 1827 days ago · 24 km deep · 90 km away

The first 60 of 121.

Before

1. 1.9141 km WSW of Adak, AlaskaSat, Aug 28, 2:03 PM HADT · 1852 days ago · 9 km deep · 84 km away
2. 1.5254 km WSW of Adak, AlaskaSat, Aug 28, 11:38 PM GMT+12 · 1853 days ago · 16 km deep · 54 km away
3. 1.5171 km W of Adak, AlaskaFri, Aug 27, 1:13 PM HADT · 1853 days ago · 5 km deep · 40 km away
4. 3.0254 km WNW of Adak, AlaskaSat, Aug 28, 2:30 AM GMT+12 · 1854 days ago · 188 km deep · 83 km away
5. 3.1248 km W of Adak, AlaskaFri, Aug 27, 7:07 AM GMT+12 · 1855 days ago · 77 km deep · 38 km away
6. 1.9217 km WSW of Adak, AlaskaThu, Aug 26, 1:04 AM HADT · 1855 days ago · 6 km deep · 91 km away
7. 1.6294 km WSW of Adak, AlaskaThu, Aug 26, 8:28 PM GMT+12 · 1855 days ago · 37 km deep · 90 km away
8. 1.6141 km WSW of Adak, AlaskaWed, Aug 25, 9:06 PM HADT · 1855 days ago · 13 km deep · 84 km away
9. 1.5139 km WSW of Adak, AlaskaWed, Aug 25, 4:36 PM HADT · 1855 days ago · 22 km deep · 85 km away
10. 1.8137 km WSW of Adak, AlaskaWed, Aug 25, 3:59 PM HADT · 1855 days ago · 9 km deep · 84 km away
11. 3.4142 km WSW of Adak, AlaskaWed, Aug 25, 2:08 PM HADT · 1855 days ago · 17 km deep · 89 km away
12. 1.7266 km WSW of Adak, AlaskaWed, Aug 25, 4:50 PM GMT+12 · 1856 days ago · 19 km deep · 74 km away
13. 1.9201 km WSW of Adak, AlaskaTue, Aug 24, 12:02 PM HADT · 1857 days ago · 70 km deep · 30 km away
14. 1.7Rat Islands, Aleutian Islands, AlaskaWed, Aug 25, 5:30 AM GMT+12 · 1857 days ago · 51 km deep · 95 km away
15. 1.8263 km W of Adak, AlaskaTue, Aug 24, 10:57 PM GMT+12 · 1857 days ago · 169 km deep · 68 km away
16. 1.9194 km WSW of Adak, AlaskaMon, Aug 23, 6:57 PM HADT · 1857 days ago · 13 km deep · 79 km away
17. 1.7252 km W of Adak, AlaskaTue, Aug 24, 1:01 PM GMT+12 · 1857 days ago · 145 km deep · 56 km away
18. 1.6247 km WSW of Adak, AlaskaTue, Aug 24, 9:11 AM GMT+12 · 1858 days ago · 63 km deep · 42 km away
19. 1.9203 km W of Adak, AlaskaSun, Aug 22, 3:39 PM HADT · 1858 days ago · 119 km deep · 20 km away
20. 1.5133 km WSW of Adak, AlaskaSun, Aug 22, 8:39 AM HADT · 1859 days ago · 7 km deep · 82 km away

From the USGS Earthquake Hazards Program and its partner networks, event ak021b2mf0ig. Read Thu, Sep 24, 2026, 8:58 AM UTC.