Alaska earthquakes

M1.6 earthquake 232 km WSW of Adak, Alaska

A magnitude 1.6 earthquake struck 232 km WSW of Adak, Alaska on Fri, Sep 3, 2021, 1:30 AM HADT (10:30 UTC), 11 km (7 mi) below the surface.

A larger quake followed: M6.1 187 km WSW of Adak, Alaska. This one was a foreshock.

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Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
1.6 (ml), micro
Local time
UTC
2021-09-03 10:30:24 UTC
Depth
10.7 km (6.6 mi), shallow
Epicenter
51.505° N, 179.946° W
Region
Alaska
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Stations used
30

Nearby

Within 100 km, magnitude 1.5 and up: 128 in the 60 days after this one and 88 in the 30 days before it.

After

  1. 1.5Andreanof Islands, Aleutian Islands, Alaska · 1848 days ago · 42 km deep · 76 km away
  2. 1.9232 km WSW of Adak, Alaska · 1848 days ago · 7 km deep · 2 km away
  3. 1.6234 km WSW of Adak, Alaska · 1848 days ago · 13 km deep · 2 km away
  4. 1.8231 km WSW of Adak, Alaska · 1848 days ago · 13 km deep · 1 km away
  5. 1.7299 km WSW of Adak, Alaska · 1848 days ago · 19 km deep · 74 km away
  6. 1.7271 km W of Adak, Alaska · 1848 days ago · 63 km deep · 42 km away
  7. 2.5Rat Islands, Aleutian Islands, Alaska · 1847 days ago · 95 km deep · 86 km away
  8. 1.7189 km WSW of Adak, Alaska · 1846 days ago · 3 km deep · 78 km away
  9. 1.6240 km WSW of Adak, Alaska · 1845 days ago · 13 km deep · 40 km away
  10. 1.6245 km WSW of Adak, Alaska · 1845 days ago · 13 km deep · 39 km away
  11. 2.8199 km WSW of Adak, Alaska · 1845 days ago · 16 km deep · 80 km away
  12. 2.6245 km W of Adak, Alaska · 1845 days ago · 174 km deep · 53 km away
  13. 1.5225 km W of Adak, Alaska · 1844 days ago · 73 km deep · 15 km away
  14. 1.7Rat Islands, Aleutian Islands, Alaska · 1844 days ago · 82 km deep · 80 km away
  15. 2.9177 km WSW of Adak, Alaska · 1844 days ago · 30 km deep · 83 km away
  16. 1.5185 km W of Adak, Alaska · 1844 days ago · 15 km deep · 56 km away
  17. 1.6168 km WSW of Adak, Alaska · 1843 days ago · 26 km deep · 91 km away
  18. 1.5155 km W of Adak, Alaska · 1843 days ago · 2 km deep · 80 km away
  19. 2.2228 km W of Adak, Alaska · 1842 days ago · 149 km deep · 50 km away
  20. 2.9Rat Islands, Aleutian Islands, Alaska · 1841 days ago · 33 km deep · 85 km away
  21. 3.9250 km W of Adak, Alaska · 1841 days ago · 131 km deep · 46 km away
  22. 1.7169 km W of Adak, Alaska · 1840 days ago · 12 km deep · 65 km away
  23. 1.5153 km WSW of Adak, Alaska · 1840 days ago · 14 km deep · 81 km away
  24. 2.7272 km W of Adak, Alaska · 1840 days ago · 75 km deep · 45 km away
  25. 1.6146 km W of Adak, Alaska · 1839 days ago · 16 km deep · 87 km away
  26. 1.8184 km WSW of Adak, Alaska · 1838 days ago · 22 km deep · 74 km away
  27. 1.6194 km WSW of Adak, Alaska · 1838 days ago · 20 km deep · 49 km away
  28. 2.8223 km W of Adak, Alaska · 1838 days ago · 78 km deep · 10 km away
  29. 2.0133 km W of Adak, Alaska · 1836 days ago · 15 km deep · 99 km away
  30. 2.1136 km W of Adak, AK · 1836 days ago · 17 km deep · 96 km away
  31. 2.7215 km W of Adak, Alaska · 1835 days ago · 73 km deep · 18 km away
  32. 2.7201 km WSW of Adak, Alaska · 1832 days ago · 16 km deep · 70 km away
  33. 2.8220 km WSW of Adak, Alaska · 1831 days ago · 22 km deep · 57 km away
  34. 1.9252 km W of Adak, Alaska · 1831 days ago · 95 km deep · 43 km away
  35. 1.5Rat Islands, Aleutian Islands, Alaska · 1831 days ago · 7 km deep · 88 km away
  36. 1.8Rat Islands, Aleutian Islands, Alaska · 1830 days ago · 56 km deep · 77 km away
  37. 4.0257 km WSW of Adak, Alaska · 1830 days ago · 106 km deep · 25 km away
  38. 1.6Rat Islands, Aleutian Islands, Alaska · 1830 days ago · 30 km deep · 85 km away
  39. 2.0168 km WSW of Adak, Alaska · 1829 days ago · 26 km deep · 72 km away
  40. 2.5219 km WSW of Adak, Alaska · 1829 days ago · 26 km deep · 62 km away
  41. 2.7221 km WSW of Adak, Alaska · 1829 days ago · 15 km deep · 56 km away
  42. 1.9222 km WSW of Adak, Alaska · 1828 days ago · 12 km deep · 11 km away
  43. 1.6165 km WSW of Adak, Alaska · 1828 days ago · 24 km deep · 92 km away
  44. 1.5208 km WSW of Adak, Alaska · 1828 days ago · 22 km deep · 48 km away
  45. 5.5185 km WSW of Adak, Alaska · 1827 days ago · 18 km deep · 76 km away
  46. 3.2187 km WSW of Adak, Alaska · 1827 days ago · 33 km deep · 72 km away
  47. 3.4184 km WSW of Adak, Alaska · 1827 days ago · 28 km deep · 77 km away
  48. 1.7Andreanof Islands, Aleutian Islands, Alaska · 1827 days ago · 21 km deep · 74 km away
  49. 1.5Rat Islands, Aleutian Islands, Alaska · 1827 days ago · 57 km deep · 23 km away
  50. 6.1187 km WSW of Adak, Alaska · 1827 days ago · 18 km deep · 80 km away · felt by 7 · tsunami flag
  51. 2.0191 km WSW of Adak, Alaska · 1827 days ago · 10 km deep · 87 km away
  52. 2.0178 km WSW of Adak, Alaska · 1827 days ago · 22 km deep · 82 km away
  53. 1.6191 km WSW of Adak, Alaska · 1827 days ago · 9 km deep · 83 km away
  54. 2.0189 km WSW of Adak, Alaska · 1827 days ago · 20 km deep · 80 km away
  55. 1.7188 km WSW of Adak, Alaska · 1827 days ago · 21 km deep · 74 km away
  56. 1.8182 km WSW of Adak, Alaska · 1827 days ago · 26 km deep · 78 km away
  57. 1.6221 km WSW of Adak, Alaska · 1826 days ago · 50 km deep · 16 km away
  58. 2.0211 km W of Adak, Alaska · 1825 days ago · 104 km deep · 36 km away
  59. 3.1190 km WSW of Adak, Alaska · 1825 days ago · 32 km deep · 64 km away
  60. 3.1179 km WSW of Adak, Alaska · 1825 days ago · 63 km deep · 59 km away

The first 60 of 128.

Before

  1. 1.5272 km W of Adak, Alaska · 1849 days ago · 70 km deep · 42 km away
  2. 2.6221 km WSW of Adak, Alaska · 1849 days ago · 88 km deep · 21 km away
  3. 1.6194 km WSW of Adak, Alaska · 1849 days ago · 5 km deep · 75 km away
  4. 1.6248 km WSW of Adak, Alaska · 1849 days ago · 48 km deep · 20 km away
  5. 1.5253 km WSW of Adak, Alaska · 1849 days ago · 6 km deep · 60 km away
  6. 1.9257 km WSW of Adak, Alaska · 1849 days ago · 57 km deep · 25 km away
  7. 1.7215 km WSW of Adak, Alaska · 1851 days ago · 14 km deep · 63 km away
  8. 1.7Rat Islands, Aleutian Islands, Alaska · 1851 days ago · 21 km deep · 72 km away
  9. 1.9243 km W of Adak, Alaska · 1852 days ago · 70 km deep · 23 km away
  10. 2.0Rat Islands, Aleutian Islands, Alaska · 1852 days ago · 93 km deep · 80 km away
  11. 1.9192 km W of Adak, Alaska · 1852 days ago · 148 km deep · 82 km away
  12. 1.9230 km W of Adak, Alaska · 1854 days ago · 93 km deep · 28 km away
  13. 1.8211 km W of Adak, Alaska · 1854 days ago · 92 km deep · 30 km away
  14. 1.9141 km WSW of Adak, Alaska · 1854 days ago · 9 km deep · 97 km away
  15. 1.5254 km WSW of Adak, Alaska · 1854 days ago · 16 km deep · 24 km away
  16. 1.5171 km W of Adak, Alaska · 1855 days ago · 5 km deep · 64 km away
  17. 3.0254 km WNW of Adak, Alaska · 1855 days ago · 188 km deep · 100 km away
  18. 3.1248 km W of Adak, Alaska · 1856 days ago · 77 km deep · 21 km away
  19. 1.9217 km WSW of Adak, Alaska · 1856 days ago · 6 km deep · 76 km away
  20. 1.6294 km WSW of Adak, Alaska · 1856 days ago · 37 km deep · 63 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021bb0c6is. Read Fri, Sep 25, 2026, 5:10 PM UTC.