Alaska earthquakes

M1.6 earthquake 249 km W of Adak, Alaska

A magnitude 1.6 earthquake struck 249 km W of Adak, Alaska on Mon, Nov 8, 2021, 7:02 PM GMT+12 (07:02 UTC), -3 km (-2 mi) below the surface.

A larger quake followed: M4.5 Rat Islands, Aleutian Islands, 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
2021-11-08 07:02:02 UTC
Depth
-3.2 km (-2.0 mi), shallow
Epicenter
52.004° N, 179.750° E
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.

Location uncertainty
About 0.8 km horizontally, 4.2 km in depth
Magnitude uncertainty
±0.23
Depth from
From location
Station coverage gap
295°, poorly surrounded by stations
Stations used
6

Nearby

Within 100 km, magnitude 1.5 and up: 92 in the 60 days after this one and 51 in the 30 days before it.

After

  1. 2.5241 km WSW of Adak, Alaska · 1782 days ago · 33 km deep · 84 km away
  2. 1.6251 km W of Adak, Alaska · 1782 days ago · 1 km deep · 3 km away
  3. 2.0181 km W of Adak, Alaska · 1782 days ago · 77 km deep · 75 km away
  4. 2.8Rat Islands, Aleutian Islands, Alaska · 1778 days ago · 41 km deep · 95 km away
  5. 1.7Rat Islands, Aleutian Islands, Alaska · 1778 days ago · 2 km deep · 89 km away
  6. 1.9281 km WSW of Adak, Alaska · 1777 days ago · 46 km deep · 75 km away
  7. 2.7200 km W of Adak, Alaska · 1776 days ago · 89 km deep · 61 km away
  8. 2.2Rat Islands, Aleutian Islands, Alaska · 1776 days ago · 69 km deep · 67 km away
  9. 2.6256 km WSW of Adak, Alaska · 1772 days ago · 31 km deep · 83 km away
  10. 2.5Rat Islands, Aleutian Islands, Alaska · 1771 days ago · 42 km deep · 95 km away
  11. 2.1Rat Islands, Aleutian Islands, Alaska · 1771 days ago · 41 km deep · 89 km away
  12. 1.8211 km W of Adak, Alaska · 1771 days ago · 72 km deep · 56 km away
  13. 2.2204 km WSW of Adak, Alaska · 1771 days ago · 44 km deep · 97 km away
  14. 2.2212 km WSW of Adak, Alaska · 1768 days ago · 69 km deep · 71 km away
  15. 1.9283 km W of Adak, Alaska · 1768 days ago · 62 km deep · 54 km away
  16. 3.2Rat Islands, Aleutian Islands, Alaska · 1767 days ago · 35 km deep · 94 km away
  17. 2.8Rat Islands, Aleutian Islands, Alaska · 1766 days ago · 126 km deep · 91 km away
  18. 1.8Rat Islands, Aleutian Islands, Alaska · 1765 days ago · 43 km deep · 86 km away
  19. 1.7263 km W of Adak, Alaska · 1765 days ago · 19 km deep · 55 km away
  20. 2.2253 km W of Adak, Alaska · 1764 days ago · 86 km deep · 29 km away
  21. 2.1212 km WSW of Adak, Alaska · 1764 days ago · 9 km deep · 94 km away
  22. 2.6188 km W of Adak, Alaska · 1761 days ago · 96 km deep · 72 km away
  23. 3.1271 km W of Adak, Alaska · 1761 days ago · 96 km deep · 38 km away
  24. 3.9Rat Islands, Aleutian Islands, Alaska · 1761 days ago · 57 km deep · 69 km away
  25. 2.1257 km WSW of Adak, Alaska · 1759 days ago · 66 km deep · 71 km away
  26. 1.8Andreanof Islands, Aleutian Islands, Alaska · 1758 days ago · 13 km deep · 64 km away
  27. 3.3Rat Islands, Aleutian Islands, Alaska · 1756 days ago · 35 km deep · 95 km away
  28. 2.8192 km WSW of Adak, Alaska · 1755 days ago · 65 km deep · 84 km away
  29. 2.8239 km W of Adak, Alaska · 1754 days ago · 176 km deep · 10 km away
  30. 3.2290 km WSW of Adak, Alaska · 1753 days ago · 29 km deep · 97 km away
  31. 2.9Rat Islands, Aleutian Islands, Alaska · 1752 days ago · 7 km deep · 99 km away
  32. 1.5Rat Islands, Aleutian Islands, Alaska · 1752 days ago · 7 km deep · 95 km away
  33. 2.1Rat Islands, Aleutian Islands, Alaska · 1752 days ago · 5 km deep · 95 km away
  34. 1.8Rat Islands, Aleutian Islands, Alaska · 1752 days ago · 6 km deep · 96 km away
  35. 4.3Rat Islands, Aleutian Islands, Alaska · 1751 days ago · 10 km deep · 100 km away
  36. 2.9Rat Islands, Aleutian Islands, Alaska · 1751 days ago · 10 km deep · 100 km away
  37. 1.6Rat Islands, Aleutian Islands, Alaska · 1751 days ago · 8 km deep · 95 km away
  38. 1.6Rat Islands, Aleutian Islands, Alaska · 1751 days ago · 6 km deep · 95 km away
  39. 2.5Rat Islands, Aleutian Islands, Alaska · 1751 days ago · 5 km deep · 98 km away
  40. 2.3Rat Islands, Aleutian Islands, Alaska · 1751 days ago · 6 km deep · 97 km away
  41. 2.4Rat Islands, Aleutian Islands, Alaska · 1751 days ago · 2 km deep · 99 km away
  42. 2.6Rat Islands, Aleutian Islands, Alaska · 1751 days ago · 14 km deep · 95 km away
  43. 1.8Rat Islands, Aleutian Islands, Alaska · 1751 days ago · 5 km deep · 95 km away
  44. 1.8Rat Islands, Aleutian Islands, Alaska · 1751 days ago · 5 km deep · 91 km away
  45. 3.0Rat Islands, Aleutian Islands, Alaska · 1751 days ago · 3 km deep · 94 km away
  46. 2.6Rat Islands, Aleutian Islands, Alaska · 1751 days ago · 6 km deep · 91 km away
  47. 1.9Rat Islands, Aleutian Islands, Alaska · 1750 days ago · 6 km deep · 93 km away
  48. 1.9Rat Islands, Aleutian Islands, Alaska · 1750 days ago · 4 km deep · 96 km away
  49. 1.6Rat Islands, Aleutian Islands, Alaska · 1750 days ago · 4 km deep · 97 km away
  50. 1.8Rat Islands, Aleutian Islands, Alaska · 1750 days ago · 8 km deep · 93 km away
  51. 1.7Rat Islands, Aleutian Islands, Alaska · 1750 days ago · 7 km deep · 94 km away
  52. 1.7Rat Islands, Aleutian Islands, Alaska · 1750 days ago · 6 km deep · 96 km away
  53. 3.0Rat Islands, Aleutian Islands, Alaska · 1750 days ago · 10 km deep · 98 km away
  54. 2.6Rat Islands, Aleutian Islands, Alaska · 1750 days ago · 6 km deep · 94 km away
  55. 4.2Rat Islands, Aleutian Islands, Alaska · 1750 days ago · 10 km deep · 100 km away
  56. 1.6Rat Islands, Aleutian Islands, Alaska · 1750 days ago · 7 km deep · 91 km away
  57. 2.1Rat Islands, Aleutian Islands, Alaska · 1750 days ago · 4 km deep · 95 km away
  58. 4.5Rat Islands, Aleutian Islands, Alaska · 1750 days ago · 10 km deep · 100 km away
  59. 3.2Rat Islands, Aleutian Islands, Alaska · 1750 days ago · 10 km deep · 92 km away
  60. 2.0Rat Islands, Aleutian Islands, Alaska · 1750 days ago · 3 km deep · 96 km away

The first 60 of 92.

Before

  1. 2.1Rat Islands, Aleutian Islands, Alaska · 1784 days ago · 97 km deep · 86 km away
  2. 1.9253 km W of Adak, Alaska · 1785 days ago · 74 km deep · 41 km away
  3. 2.7299 km W of Adak, Alaska · 1785 days ago · 80 km deep · 64 km away
  4. 1.7287 km WSW of Adak, Alaska · 1786 days ago · 33 km deep · 72 km away
  5. 2.8253 km WSW of Adak, Alaska · 1787 days ago · 70 km deep · 60 km away
  6. 3.0Rat Islands, Aleutian Islands, Alaska · 1787 days ago · 35 km deep · 94 km away
  7. 2.9238 km WSW of Adak, Alaska · 1788 days ago · 27 km deep · 92 km away
  8. 2.9226 km W of Adak, Alaska · 1789 days ago · 102 km deep · 35 km away
  9. 3.1246 km W of Adak, Alaska · 1790 days ago · 164 km deep · 12 km away
  10. 1.8278 km W of Adak, Alaska · 1790 days ago · 79 km deep · 37 km away
  11. 1.7Rat Islands, Aleutian Islands, Alaska · 1790 days ago · 92 km deep · 95 km away
  12. 1.8256 km W of Adak, Alaska · 1790 days ago · 92 km deep · 22 km away
  13. 1.9Rat Islands, Aleutian Islands, Alaska · 1791 days ago · 95 km deep · 82 km away
  14. 2.0211 km W of Adak, Alaska · 1791 days ago · 112 km deep · 45 km away
  15. 1.9Rat Islands, Aleutian Islands, Alaska · 1791 days ago · 37 km deep · 88 km away
  16. 1.9Rat Islands, Aleutian Islands, Alaska · 1791 days ago · 37 km deep · 88 km away
  17. 1.9223 km WSW of Adak, Alaska · 1791 days ago · 66 km deep · 61 km away
  18. 3.1225 km WSW of Adak, Alaska · 1793 days ago · 27 km deep · 79 km away
  19. 3.3Rat Islands, Aleutian Islands, Alaska · 1793 days ago · 119 km deep · 96 km away
  20. 1.6Rat Islands, Aleutian Islands, Alaska · 1793 days ago · 35 km deep · 87 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event av91410021. Read Fri, Sep 25, 2026, 11:09 AM UTC.