Alaska earthquakes

M1.9 earthquake 113 km S of Unalaska, Alaska

A magnitude 1.9 earthquake struck 113 km S of Unalaska, Alaska on Tue, Dec 28, 2021, 5:45 PM AKST (02:45 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M6.8 100 km SE of Nikolski, Alaska. This one was a foreshock.

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Map

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

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The earthquake

Magnitude
1.9 (ml), micro
Local time
UTC
2021-12-29 02:45:28 UTC
Depth
2.7 km (1.7 mi), shallow
Epicenter
52.869° N, 166.844° 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
15

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: at least 200 in the 60 days after this one and 34 in the 30 days before it.

After

  1. 2.285 km SSW of Unalaska, Alaska · 1730 days ago · 17 km deep · 31 km away
  2. 1.755 km SW of Unalaska, Alaska · 1729 days ago · 13 km deep · 77 km away
  3. 2.966 km SSW of Unalaska, Alaska · 1729 days ago · 4 km deep · 55 km away
  4. 1.875 km S of Unalaska, Alaska · 1729 days ago · 26 km deep · 48 km away
  5. 2.558 km SE of Nikolski, Alaska · 1729 days ago · 34 km deep · 94 km away
  6. 1.949 km ESE of Nikolski, Alaska · 1729 days ago · 26 km deep · 88 km away
  7. 1.642 km SW of Unalaska, Alaska · 1728 days ago · 15 km deep · 86 km away
  8. 1.9Fox Islands, Aleutian Islands, Alaska · 1728 days ago · 51 km deep · 55 km away
  9. 1.656 km SW of Unalaska, Alaska · 1728 days ago · 17 km deep · 80 km away
  10. 4.261 km SE of Unalaska, Alaska · 1727 days ago · 44 km deep · 94 km away · felt by 5
  11. 3.583 km S of Unalaska, Alaska · 1727 days ago · 29 km deep · 30 km away
  12. 1.938 km S of Unalaska, Alaska · 1726 days ago · 71 km deep · 78 km away
  13. 2.169 km SSW of Unalaska, Alaska · 1725 days ago · 21 km deep · 46 km away
  14. 3.287 km S of Unalaska, Alaska · 1725 days ago · 35 km deep · 27 km away
  15. 3.5Fox Islands, Aleutian Islands, Alaska · 1725 days ago · 35 km deep · 30 km away
  16. 3.391 km E of Nikolski, Alaska · 1725 days ago · 35 km deep · 51 km away
  17. 2.075 km SSW of Unalaska, Alaska · 1724 days ago · 38 km deep · 38 km away
  18. 1.927 km SSW of Unalaska, Alaska · 1724 days ago · 84 km deep · 86 km away
  19. 1.931 km WSW of Unalaska, Alaska · 1724 days ago · 83 km deep · 99 km away
  20. 3.072 km S of Unalaska, Alaska · 1723 days ago · 35 km deep · 45 km away
  21. 2.491 km ENE of Nikolski, Alaska · 1721 days ago · 66 km deep · 61 km away
  22. 2.188 km S of Unalaska, Alaska · 1721 days ago · 26 km deep · 25 km away
  23. 1.774 km WSW of Unalaska, Alaska · 1721 days ago · 13 km deep · 87 km away
  24. 1.846 km WSW of Unalaska, Alaska · 1721 days ago · 11 km deep · 90 km away
  25. 3.041 km WSW of Unalaska, Alaska · 1721 days ago · 83 km deep · 92 km away
  26. 3.057 km SW of Unalaska, Alaska · 1720 days ago · 35 km deep · 67 km away
  27. 4.058 km SSE of Unalaska, Alaska · 1720 days ago · 43 km deep · 78 km away
  28. 2.678 km S of Unalaska, Alaska · 1720 days ago · 33 km deep · 35 km away
  29. 6.8100 km SE of Nikolski, Alaska · 1719 days ago · 20 km deep · 85 km away · felt by 28 · tsunami flag
  30. 3.172 km SE of Nikolski, Alaska · 1719 days ago · 21 km deep · 91 km away
  31. 4.591 km SE of Nikolski, Alaska · 1719 days ago · 10 km deep · 98 km away
  32. 4.883 km SE of Nikolski, Alaska · 1719 days ago · 17 km deep · 90 km away
  33. 4.653 km ESE of Nikolski, Alaska · 1719 days ago · 26 km deep · 86 km away
  34. 3.4104 km SE of Nikolski, Alaska · 1719 days ago · 10 km deep · 97 km away
  35. 3.683 km SE of Nikolski, Alaska · 1719 days ago · 18 km deep · 93 km away
  36. 5.488 km SE of Nikolski, Alaska · 1719 days ago · 17 km deep · 92 km away · felt by 2
  37. 3.1116 km SE of Nikolski, Alaska · 1719 days ago · 21 km deep · 88 km away
  38. 2.894 km SE of Nikolski, Alaska · 1719 days ago · 10 km deep · 92 km away
  39. 4.793 km SE of Nikolski, Alaska · 1719 days ago · 22 km deep · 92 km away · felt by 2
  40. 3.3105 km SE of Nikolski, Alaska · 1719 days ago · 25 km deep · 86 km away
  41. 2.8113 km SE of Nikolski, Alaska · 1719 days ago · 10 km deep · 99 km away
  42. 4.494 km SE of Nikolski, Alaska · 1719 days ago · 10 km deep · 98 km away
  43. 2.497 km SE of Nikolski, Alaska · 1719 days ago · 26 km deep · 96 km away
  44. 3.296 km SE of Nikolski, Alaska · 1719 days ago · 10 km deep · 98 km away
  45. 2.992 km SE of Nikolski, Alaska · 1719 days ago · 19 km deep · 96 km away
  46. 2.386 km SE of Nikolski, Alaska · 1719 days ago · 34 km deep · 90 km away
  47. 2.398 km SE of Nikolski, Alaska · 1719 days ago · 24 km deep · 80 km away
  48. 3.297 km SE of Nikolski, Alaska · 1719 days ago · 10 km deep · 82 km away
  49. 2.388 km SE of Nikolski, Alaska · 1719 days ago · 26 km deep · 90 km away
  50. 3.994 km SE of Nikolski, Alaska · 1719 days ago · 10 km deep · 85 km away
  51. 2.795 km SE of Nikolski, Alaska · 1719 days ago · 11 km deep · 76 km away
  52. 3.0117 km SE of Nikolski, Alaska · 1719 days ago · 10 km deep · 85 km away
  53. 3.4106 km SE of Nikolski, Alaska · 1719 days ago · 10 km deep · 83 km away
  54. 3.396 km SE of Nikolski, Alaska · 1719 days ago · 12 km deep · 99 km away
  55. 2.686 km SE of Nikolski, Alaska · 1719 days ago · 10 km deep · 95 km away
  56. 2.9Fox Islands, Aleutian Islands, Alaska · 1719 days ago · 5 km deep · 95 km away
  57. 5.882 km SE of Nikolski, Alaska · 1719 days ago · 17 km deep · 89 km away · felt by 2
  58. 2.997 km SE of Nikolski, Alaska · 1719 days ago · 10 km deep · 96 km away
  59. 4.184 km SE of Nikolski, Alaska · 1719 days ago · 10 km deep · 98 km away
  60. 3.967 km SE of Nikolski, Alaska · 1719 days ago · 10 km deep · 98 km away

The first 60 of at least 200.

Before

  1. 1.991 km E of Nikolski, Alaska · 1734 days ago · 25 km deep · 46 km away
  2. 2.532 km SSW of Unalaska, Alaska · 1736 days ago · 78 km deep · 84 km away
  3. 2.1109 km E of Nikolski, Alaska · 1736 days ago · 17 km deep · 26 km away
  4. 2.4138 km S of Unalaska, Alaska · 1736 days ago · 10 km deep · 45 km away
  5. 1.783 km WSW of Unalaska, Alaska · 1738 days ago · 7 km deep · 91 km away
  6. 2.363 km ESE of Nikolski, Alaska · 1740 days ago · 22 km deep · 78 km away
  7. 2.059 km ESE of Nikolski, Alaska · 1740 days ago · 22 km deep · 82 km away
  8. 4.353 km ESE of Nikolski, Alaska · 1740 days ago · 43 km deep · 90 km away
  9. 4.054 km ESE of Nikolski, Alaska · 1740 days ago · 35 km deep · 90 km away · felt by 1
  10. 2.158 km SE of Unalaska, Alaska · 1740 days ago · 33 km deep · 97 km away
  11. 2.240 km SE of Unalaska, Alaska · 1741 days ago · 63 km deep · 96 km away
  12. 1.748 km SSW of Unalaska, Alaska · 1742 days ago · 65 km deep · 70 km away
  13. 3.5194 km SSE of Unalaska, Alaska · 1743 days ago · 10 km deep · 100 km away
  14. 2.0south of the Aleutian Islands · 1743 days ago · 20 km deep · 79 km away
  15. 1.874 km E of Nikolski, Alaska · 1743 days ago · 40 km deep · 62 km away
  16. 2.361 km ESE of Nikolski, Alaska · 1744 days ago · 19 km deep · 77 km away
  17. 3.2116 km S of Unalaska, Alaska · 1745 days ago · 2 km deep · 7 km away
  18. 1.9134 km S of Unalaska, Alaska · 1746 days ago · 10 km deep · 25 km away
  19. 2.0134 km S of Unalaska, Alaska · 1746 days ago · 14 km deep · 25 km away
  20. 2.950 km SE of Nikolski, Alaska · 1746 days ago · 35 km deep · 98 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021godjjwl. Read Sat, Sep 26, 2026, 8:51 PM UTC.