M1.8 earthquake 244 km W of Adak, Alaska

Magnitude

1.8 (ml), micro

Local time

Thu, Oct 7, 2021, 1:26 PM GMT+12

UTC

2021-10-07 01:26:21 UTC

Depth

61.4 km (38.2 mi), shallow

Epicenter

51.524° N, 179.880° E

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Stations used

21

After

1. 2.5194 km WSW of Adak, AlaskaWed, Oct 6, 5:45 PM HADT · 1813 days ago · 18 km deep · 81 km away
2. 2.5Rat Islands, Aleutian Islands, AlaskaThu, Oct 7, 2:56 PM GMT+12 · 1813 days ago · 77 km deep · 73 km away
3. 2.4Rat Islands, Aleutian Islands, AlaskaFri, Oct 8, 7:53 PM GMT+12 · 1812 days ago · 70 km deep · 59 km away
4. 2.8266 km W of Adak, AlaskaSat, Oct 9, 1:32 AM GMT+12 · 1812 days ago · 86 km deep · 32 km away
5. 1.7163 km WSW of Adak, AlaskaFri, Oct 8, 9:25 AM HADT · 1812 days ago · 16 km deep · 81 km away
6. 4.0Rat Islands, Aleutian Islands, AlaskaSun, Oct 10, 3:46 AM GMT+12 · 1811 days ago · 105 km deep · 99 km away
7. 2.6154 km WSW of Adak, AlaskaSat, Oct 9, 10:07 PM HADT · 1810 days ago · 21 km deep · 92 km away
8. 2.1290 km W of Adak, AlaskaMon, Oct 11, 4:45 AM GMT+12 · 1810 days ago · 28 km deep · 47 km away
9. 2.5182 km WSW of Adak, AlaskaSun, Oct 10, 2:04 PM HADT · 1810 days ago · 29 km deep · 77 km away
10. 1.9244 km WSW of Adak, AlaskaMon, Oct 11, 6:57 PM GMT+12 · 1809 days ago · 48 km deep · 14 km away
11. 2.1Rat Islands, Aleutian Islands, AlaskaThu, Oct 14, 3:16 PM GMT+12 · 1806 days ago · 59 km deep · 83 km away
12. 3.1216 km W of Adak, AlaskaWed, Oct 13, 11:18 PM HADT · 1806 days ago · 110 km deep · 38 km away
13. 2.7157 km WSW of Adak, AlaskaThu, Oct 14, 3:24 AM HADT · 1806 days ago · 95 km deep · 87 km away
14. 3.0199 km WSW of Adak, AlaskaThu, Oct 14, 3:39 AM HADT · 1806 days ago · 10 km deep · 86 km away
15. 2.8Rat Islands, Aleutian Islands, AlaskaFri, Oct 15, 1:24 AM GMT+12 · 1806 days ago · 73 km deep · 66 km away
16. 4.0Rat Islands, Aleutian Islands, AlaskaFri, Oct 15, 6:31 AM GMT+12 · 1806 days ago · 67 km deep · 76 km away
17. 3.2181 km WSW of Adak, AlaskaSat, Oct 16, 5:11 AM HADT · 1804 days ago · 30 km deep · 70 km away
18. 4.1194 km WSW of Adak, AlaskaSun, Oct 17, 4:08 PM HADT · 1802 days ago · 42 km deep · 80 km away
19. 3.3231 km WSW of Adak, AlaskaTue, Oct 19, 12:48 PM HADT · 1801 days ago · 6 km deep · 69 km away
20. 3.0Rat Islands, Aleutian Islands, AlaskaThu, Oct 21, 7:27 PM GMT+12 · 1799 days ago · 19 km deep · 87 km away
21. 5.1Rat Islands, Aleutian Islands, AlaskaSat, Oct 23, 3:10 PM GMT+12 · 1797 days ago · 55 km deep · 72 km away · felt by 1
22. 2.7Rat Islands, Aleutian Islands, AlaskaSat, Oct 23, 3:22 PM GMT+12 · 1797 days ago · 44 km deep · 80 km away
23. 1.9Rat Islands, Aleutian Islands, AlaskaSat, Oct 23, 3:25 PM GMT+12 · 1797 days ago · 21 km deep · 73 km away
24. 1.6Rat Islands, Aleutian Islands, AlaskaSat, Oct 23, 4:14 PM GMT+12 · 1797 days ago · 10 km deep · 80 km away
25. 1.6Rat Islands, Aleutian Islands, AlaskaSat, Oct 23, 5:14 PM GMT+12 · 1797 days ago · 26 km deep · 86 km away
26. 1.9Rat Islands, Aleutian Islands, AlaskaSat, Oct 23, 5:15 PM GMT+12 · 1797 days ago · 39 km deep · 74 km away
27. 3.2Rat Islands, Aleutian Islands, AlaskaSat, Oct 23, 5:19 PM GMT+12 · 1797 days ago · 44 km deep · 78 km away
28. 3.3Rat Islands, Aleutian Islands, AlaskaSat, Oct 23, 5:58 PM GMT+12 · 1797 days ago · 41 km deep · 77 km away
29. 1.6Rat Islands, Aleutian Islands, AlaskaSat, Oct 23, 6:21 PM GMT+12 · 1797 days ago · 2 km deep · 59 km away
30. 2.0Rat Islands, Aleutian Islands, AlaskaSat, Oct 23, 8:21 PM GMT+12 · 1797 days ago · 41 km deep · 74 km away
31. 1.8Rat Islands, Aleutian Islands, AlaskaSat, Oct 23, 10:17 PM GMT+12 · 1797 days ago · 24 km deep · 76 km away
32. 2.9245 km WSW of Adak, AlaskaFri, Oct 22, 10:30 PM GMT-12 · 1797 days ago · 30 km deep · 53 km away
33. 2.0Rat Islands, Aleutian Islands, AlaskaSun, Oct 24, 12:31 AM GMT+12 · 1797 days ago · 66 km deep · 94 km away
34. 1.6Rat Islands, Aleutian Islands, AlaskaSun, Oct 24, 1:00 AM GMT+12 · 1797 days ago · 33 km deep · 75 km away
35. 2.6223 km W of Adak, AlaskaSat, Oct 23, 5:44 AM HADT · 1797 days ago · 84 km deep · 24 km away
36. 2.0Rat Islands, Aleutian Islands, AlaskaSun, Oct 24, 3:25 AM GMT+12 · 1797 days ago · 83 km deep · 84 km away
37. 1.7Rat Islands, Aleutian Islands, AlaskaSun, Oct 24, 3:54 AM GMT+12 · 1797 days ago · 39 km deep · 74 km away
38. 2.6Rat Islands, Aleutian Islands, AlaskaSun, Oct 24, 4:49 AM GMT+12 · 1797 days ago · 35 km deep · 78 km away
39. 3.4Rat Islands, Aleutian Islands, AlaskaSun, Oct 24, 2:35 PM GMT+12 · 1796 days ago · 10 km deep · 91 km away
40. 2.9Rat Islands, Aleutian Islands, AlaskaMon, Oct 25, 4:43 AM GMT+12 · 1796 days ago · 67 km deep · 72 km away
41. 1.9172 km WSW of Adak, AlaskaMon, Oct 25, 4:43 AM HADT · 1795 days ago · 22 km deep · 80 km away
42. 2.3254 km W of Adak, AlaskaTue, Oct 26, 3:37 PM GMT+12 · 1794 days ago · 162 km deep · 44 km away
43. 1.7Rat Islands, Aleutian Islands, AlaskaWed, Oct 27, 1:06 AM GMT+12 · 1794 days ago · 41 km deep · 75 km away
44. 2.0296 km W of Adak, AlaskaWed, Oct 27, 8:45 PM GMT+12 · 1793 days ago · 61 km deep · 53 km away
45. 2.9236 km WSW of Adak, AlaskaWed, Oct 27, 5:50 AM HADT · 1793 days ago · 22 km deep · 59 km away
46. 1.9Rat Islands, Aleutian Islands, AlaskaThu, Oct 28, 4:49 AM GMT+12 · 1793 days ago · 5 km deep · 91 km away
47. 3.6204 km WSW of Adak, AlaskaWed, Oct 27, 8:50 AM HADT · 1793 days ago · 35 km deep · 52 km away
48. 1.6Rat Islands, Aleutian Islands, AlaskaThu, Oct 28, 2:58 PM GMT+12 · 1792 days ago · 35 km deep · 71 km away
49. 3.1225 km WSW of Adak, AlaskaThu, Oct 28, 11:57 AM HADT · 1792 days ago · 27 km deep · 30 km away
50. 1.9223 km WSW of Adak, AlaskaFri, Oct 29, 11:24 PM HADT · 1790 days ago · 66 km deep · 21 km away
51. 1.9Rat Islands, Aleutian Islands, AlaskaSat, Oct 30, 11:44 PM GMT+12 · 1790 days ago · 37 km deep · 73 km away
52. 1.9Rat Islands, Aleutian Islands, AlaskaSat, Oct 30, 11:44 PM GMT+12 · 1790 days ago · 37 km deep · 73 km away
53. 2.0211 km W of Adak, AlaskaSat, Oct 30, 10:24 AM HADT · 1790 days ago · 112 km deep · 41 km away
54. 1.9Rat Islands, Aleutian Islands, AlaskaSun, Oct 31, 9:59 AM GMT+12 · 1790 days ago · 95 km deep · 93 km away
55. 1.8256 km W of Adak, AlaskaSun, Oct 31, 3:44 PM GMT+12 · 1789 days ago · 92 km deep · 36 km away
56. 1.8278 km W of Adak, AlaskaSun, Oct 31, 11:45 PM GMT+12 · 1789 days ago · 79 km deep · 50 km away
57. 3.1246 km W of Adak, AlaskaMon, Nov 1, 9:45 AM GMT+12 · 1789 days ago · 164 km deep · 42 km away
58. 2.9226 km W of Adak, AlaskaSun, Oct 31, 11:28 PM HADT · 1788 days ago · 102 km deep · 30 km away
59. 2.9238 km WSW of Adak, AlaskaTue, Nov 2, 3:15 AM GMT-12 · 1787 days ago · 27 km deep · 39 km away
60. 3.0Rat Islands, Aleutian Islands, AlaskaThu, Nov 4, 2:08 AM GMT+12 · 1786 days ago · 35 km deep · 77 km away

The first 60 of 125.

Before

1. 3.9246 km WSW of Adak, AlaskaWed, Oct 6, 11:56 AM GMT-12 · 1814 days ago · 10 km deep · 59 km away
2. 1.9175 km WSW of Adak, AlaskaSun, Oct 3, 2:13 AM HADT · 1817 days ago · 20 km deep · 96 km away
3. 1.5174 km WSW of Adak, AlaskaSat, Oct 2, 10:24 PM HADT · 1817 days ago · 8 km deep · 74 km away
4. 1.8207 km WSW of Adak, AlaskaFri, Oct 1, 11:11 PM HADT · 1818 days ago · 8 km deep · 76 km away
5. 2.8209 km WSW of Adak, AlaskaFri, Oct 1, 12:39 AM HADT · 1819 days ago · 5 km deep · 87 km away
6. 2.3172 km WSW of Adak, AlaskaThu, Sep 30, 10:30 PM HADT · 1819 days ago · 21 km deep · 79 km away
7. 1.8Andreanof Islands, Aleutian Islands, AlaskaTue, Sep 28, 11:23 PM HADT · 1821 days ago · 15 km deep · 58 km away
8. 2.6247 km WSW of Adak, AlaskaTue, Sep 28, 3:55 PM GMT-12 · 1821 days ago · 13 km deep · 65 km away
9. 3.1179 km WSW of Adak, AlaskaSun, Sep 26, 7:20 PM HADT · 1823 days ago · 63 km deep · 71 km away
10. 3.1190 km WSW of Adak, AlaskaSun, Sep 26, 4:56 AM HADT · 1824 days ago · 32 km deep · 76 km away
11. 2.0211 km W of Adak, AlaskaSat, Sep 25, 11:04 PM HADT · 1824 days ago · 104 km deep · 42 km away
12. 1.6221 km WSW of Adak, AlaskaSat, Sep 25, 6:53 PM HADT · 1824 days ago · 50 km deep · 28 km away
13. 1.8182 km WSW of Adak, AlaskaFri, Sep 24, 11:38 AM HADT · 1826 days ago · 26 km deep · 90 km away
14. 1.7188 km WSW of Adak, AlaskaFri, Sep 24, 11:28 AM HADT · 1826 days ago · 21 km deep · 86 km away
15. 2.0189 km WSW of Adak, AlaskaFri, Sep 24, 11:15 AM HADT · 1826 days ago · 20 km deep · 92 km away
16. 1.6191 km WSW of Adak, AlaskaFri, Sep 24, 11:13 AM HADT · 1826 days ago · 9 km deep · 93 km away
17. 2.0178 km WSW of Adak, AlaskaFri, Sep 24, 9:00 AM HADT · 1826 days ago · 22 km deep · 94 km away
18. 2.0191 km WSW of Adak, AlaskaFri, Sep 24, 3:54 AM HADT · 1826 days ago · 10 km deep · 98 km away
19. 6.1187 km WSW of Adak, AlaskaFri, Sep 24, 2:52 AM HADT · 1826 days ago · 18 km deep · 91 km away · felt by 7 · tsunami flag
20. 1.5Rat Islands, Aleutian Islands, AlaskaFri, Sep 24, 8:16 PM GMT+12 · 1826 days ago · 57 km deep · 14 km away

From the USGS Earthquake Hazards Program and its partner networks, event ak021cv3885q. Read Thu, Sep 24, 2026, 12:00 PM UTC.