Alaska earthquakes

M1.8 earthquake 299 km W of Adak, Alaska

A magnitude 1.8 earthquake struck 299 km W of Adak, Alaska on Sat, Dec 11, 2021, 11:49 PM GMT+12 (11:49 UTC), 60 km (37 mi) below the surface.

A larger quake followed: M5.2 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
1.8 (ml), micro
Local time
UTC
2021-12-11 11:49:39 UTC
Depth
59.6 km (37.0 mi), shallow
Epicenter
51.531° N, 179.076° 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.

Stations used
16

Nearby

Within 100 km, magnitude 1.5 and up: at least 199 in the 60 days after this one and 99 in the 30 days before it.

After

  1. 2.2Rat Islands, Aleutian Islands, Alaska · 1751 days ago · 7 km deep · 75 km away
  2. 3.1Rat Islands, Aleutian Islands, Alaska · 1751 days ago · 10 km deep · 76 km away
  3. 1.6Rat Islands, Aleutian Islands, Alaska · 1751 days ago · 5 km deep · 74 km away
  4. 2.7230 km W of Adak, Alaska · 1751 days ago · 99 km deep · 69 km away
  5. 1.9Rat Islands, Aleutian Islands, Alaska · 1751 days ago · 4 km deep · 74 km away
  6. 2.8Rat Islands, Aleutian Islands, Alaska · 1750 days ago · 33 km deep · 60 km away
  7. 2.1Rat Islands, Aleutian Islands, Alaska · 1749 days ago · 47 km deep · 26 km away
  8. 2.0Rat Islands, Aleutian Islands, Alaska · 1749 days ago · 5 km deep · 74 km away
  9. 1.6Rat Islands, Aleutian Islands, Alaska · 1749 days ago · 9 km deep · 74 km away
  10. 1.7262 km W of Adak, Alaska · 1749 days ago · 9 km deep · 54 km away
  11. 2.2Rat Islands, Aleutian Islands, Alaska · 1749 days ago · 5 km deep · 75 km away
  12. 3.2Rat Islands, Aleutian Islands, Alaska · 1748 days ago · 101 km deep · 50 km away
  13. 4.3Rat Islands, Aleutian Islands, Alaska · 1748 days ago · 132 km deep · 74 km away
  14. 1.9Rat Islands, Aleutian Islands, Alaska · 1747 days ago · 6 km deep · 74 km away
  15. 1.5Rat Islands, Aleutian Islands, Alaska · 1747 days ago · 7 km deep · 74 km away
  16. 2.2Rat Islands, Aleutian Islands, Alaska · 1746 days ago · 11 km deep · 84 km away
  17. 2.1Rat Islands, Aleutian Islands, Alaska · 1746 days ago · 6 km deep · 91 km away
  18. 4.4Rat Islands, Aleutian Islands, Alaska · 1746 days ago · 10 km deep · 79 km away · felt by 1
  19. 2.0Rat Islands, Aleutian Islands, Alaska · 1745 days ago · 61 km deep · 13 km away
  20. 3.9298 km W of Adak, Alaska · 1745 days ago · 132 km deep · 36 km away
  21. 3.3Rat Islands, Aleutian Islands, Alaska · 1744 days ago · 41 km deep · 25 km away
  22. 1.6Rat Islands, Aleutian Islands, Alaska · 1743 days ago · 5 km deep · 72 km away
  23. 1.6Rat Islands, Aleutian Islands, Alaska · 1743 days ago · 5 km deep · 74 km away
  24. 2.5273 km WSW of Adak, Alaska · 1743 days ago · 10 km deep · 65 km away
  25. 2.6Rat Islands, Aleutian Islands, Alaska · 1742 days ago · 125 km deep · 67 km away
  26. 3.4237 km W of Adak, Alaska · 1742 days ago · 28 km deep · 63 km away
  27. 3.1216 km W of Adak, Alaska · 1737 days ago · 124 km deep · 98 km away
  28. 3.0Rat Islands, Aleutian Islands, Alaska · 1736 days ago · 82 km deep · 43 km away
  29. 2.7227 km WSW of Adak, Alaska · 1735 days ago · 13 km deep · 82 km away
  30. 2.9210 km W of Adak, Alaska · 1730 days ago · 10 km deep · 89 km away
  31. 3.2281 km WSW of Adak, Alaska · 1724 days ago · 25 km deep · 69 km away
  32. 2.5Rat Islands, Aleutian Islands, Alaska · 1723 days ago · 92 km deep · 55 km away
  33. 3.0217 km W of Adak, Alaska · 1722 days ago · 87 km deep · 83 km away
  34. 5.2Rat Islands, Aleutian Islands, Alaska · 1720 days ago · 134 km deep · 93 km away · tsunami flag
  35. 5.0242 km WSW of Adak, Alaska · 1719 days ago · 38 km deep · 82 km away · tsunami flag
  36. 2.1238 km WSW of Adak, Alaska · 1719 days ago · 15 km deep · 82 km away
  37. 2.0241 km WSW of Adak, Alaska · 1719 days ago · 26 km deep · 80 km away
  38. 2.1239 km WSW of Adak, Alaska · 1718 days ago · 26 km deep · 82 km away
  39. 2.7Rat Islands, Aleutian Islands, Alaska · 1715 days ago · 49 km deep · 47 km away
  40. 3.9Rat Islands, Aleutian Islands, Alaska · 1715 days ago · 36 km deep · 57 km away
  41. 2.2225 km WSW of Adak, Alaska · 1714 days ago · 19 km deep · 88 km away
  42. 2.0203 km WSW of Adak, Alaska · 1714 days ago · 63 km deep · 99 km away
  43. 2.8200 km W of Adak, Alaska · 1713 days ago · 94 km deep · 98 km away
  44. 2.8210 km W of Adak, Alaska · 1713 days ago · 17 km deep · 89 km away
  45. 2.7257 km WSW of Adak, Alaska · 1713 days ago · 46 km deep · 51 km away
  46. 3.1Rat Islands, Aleutian Islands, Alaska · 1712 days ago · 130 km deep · 47 km away
  47. 3.5246 km WSW of Adak, Alaska · 1711 days ago · 58 km deep · 59 km away
  48. 3.6Rat Islands, Aleutian Islands, Alaska · 1711 days ago · 52 km deep · 38 km away
  49. 2.0Rat Islands, Aleutian Islands, Alaska · 1710 days ago · 9 km deep · 74 km away
  50. 4.2Rat Islands, Aleutian Islands, Alaska · 1710 days ago · 7 km deep · 84 km away
  51. 3.4Rat Islands, Aleutian Islands, Alaska · 1710 days ago · 8 km deep · 68 km away
  52. 3.4Rat Islands, Aleutian Islands, Alaska · 1710 days ago · 11 km deep · 71 km away
  53. 3.5Rat Islands, Aleutian Islands, Alaska · 1710 days ago · 6 km deep · 81 km away
  54. 3.0Rat Islands, Aleutian Islands, Alaska · 1710 days ago · 11 km deep · 74 km away
  55. 2.1Rat Islands, Aleutian Islands, Alaska · 1710 days ago · 4 km deep · 66 km away
  56. 1.6Rat Islands, Aleutian Islands, Alaska · 1710 days ago · 4 km deep · 67 km away
  57. 4.0Rat Islands, Aleutian Islands, Alaska · 1710 days ago · 8 km deep · 70 km away
  58. 2.8Rat Islands, Aleutian Islands, Alaska · 1710 days ago · 40 km deep · 24 km away
  59. 1.9Rat Islands, Aleutian Islands, Alaska · 1709 days ago · -3 km deep · 76 km away
  60. 1.7Rat Islands, Aleutian Islands, Alaska · 1709 days ago · 2 km deep · 76 km away

The first 60 of at least 199.

Before

  1. 2.0Rat Islands, Aleutian Islands, Alaska · 1752 days ago · 5 km deep · 75 km away
  2. 2.1Rat Islands, Aleutian Islands, Alaska · 1752 days ago · 6 km deep · 73 km away
  3. 2.4Rat Islands, Aleutian Islands, Alaska · 1752 days ago · 8 km deep · 73 km away
  4. 1.6Rat Islands, Aleutian Islands, Alaska · 1752 days ago · 6 km deep · 73 km away
  5. 3.1Rat Islands, Aleutian Islands, Alaska · 1752 days ago · 10 km deep · 67 km away
  6. 2.0Rat Islands, Aleutian Islands, Alaska · 1752 days ago · 5 km deep · 76 km away
  7. 1.9Rat Islands, Aleutian Islands, Alaska · 1752 days ago · 4 km deep · 69 km away
  8. 3.0Rat Islands, Aleutian Islands, Alaska · 1752 days ago · 7 km deep · 78 km away
  9. 4.1Rat Islands, Aleutian Islands, Alaska · 1752 days ago · 10 km deep · 70 km away
  10. 2.9Rat Islands, Aleutian Islands, Alaska · 1752 days ago · 10 km deep · 82 km away
  11. 1.9Rat Islands, Aleutian Islands, Alaska · 1752 days ago · 4 km deep · 64 km away
  12. 2.0Rat Islands, Aleutian Islands, Alaska · 1752 days ago · 3 km deep · 70 km away
  13. 3.2Rat Islands, Aleutian Islands, Alaska · 1752 days ago · 10 km deep · 78 km away
  14. 3.1Rat Islands, Aleutian Islands, Alaska · 1752 days ago · 10 km deep · 77 km away
  15. 4.5Rat Islands, Aleutian Islands, Alaska · 1752 days ago · 10 km deep · 69 km away
  16. 3.4Rat Islands, Aleutian Islands, Alaska · 1752 days ago · 10 km deep · 77 km away
  17. 2.9Rat Islands, Aleutian Islands, Alaska · 1752 days ago · 10 km deep · 84 km away
  18. 2.1Rat Islands, Aleutian Islands, Alaska · 1752 days ago · 4 km deep · 69 km away
  19. 1.6Rat Islands, Aleutian Islands, Alaska · 1752 days ago · 7 km deep · 73 km away
  20. 2.6Rat Islands, Aleutian Islands, Alaska · 1752 days ago · 10 km deep · 76 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021fur934s. Read Mon, Sep 28, 2026, 12:21 AM UTC.