Alaska earthquakes

M1.5 earthquake 16 km WSW of Akutan, Alaska

A magnitude 1.5 earthquake struck 16 km WSW of Akutan, Alaska on Tue, Dec 21, 2021, 6:13 PM AKST (03:13 UTC), 16 km (10 mi) below the surface.

A larger quake followed: M4.2 61 km SE of Unalaska, Alaska. This one was a foreshock.

Akutan forecastMore in Alaska

Map

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

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The earthquake

Magnitude
1.5 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2021-12-22 03:13:18 UTC
Depth
16.4 km (10.2 mi), shallow
Epicenter
54.097° N, 166.026° W
Region
Alaska
Tsunami flag
No
Status
Reviewed by a seismologist

Magnitude estimates

Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.

Mag.ScaleComputed byNotes
1.5ML, local (Richter)Alaska Earthquake CenterPreferred · Preliminary
1.08ML, local (Richter)AVFinal · ±0.532103540094712 · 7 stations

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
24

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 91 in the 60 days after this one and 41 in the 30 days before it.

After

  1. 1.934 km SSE of Akutan, Alaska · 1747 days ago · 59 km deep · 39 km away
  2. 2.532 km SSW of Unalaska, Alaska · 1743 days ago · 78 km deep · 73 km away
  3. 2.682 km E of Akutan, Alaska · 1743 days ago · 50 km deep · 99 km away
  4. 1.774 km SE of Unalaska, Alaska · 1742 days ago · 13 km deep · 75 km away
  5. 2.161 km SE of Akutan, Alaska · 1738 days ago · 50 km deep · 72 km away
  6. 1.755 km SW of Unalaska, Alaska · 1737 days ago · 13 km deep · 97 km away
  7. 1.642 km SW of Unalaska, Alaska · 1736 days ago · 15 km deep · 84 km away
  8. 1.9Fox Islands, Aleutian Islands, Alaska · 1736 days ago · 51 km deep · 93 km away
  9. 1.656 km SW of Unalaska, Alaska · 1736 days ago · 17 km deep · 97 km away
  10. 4.261 km SE of Unalaska, Alaska · 1735 days ago · 44 km deep · 69 km away · felt by 5
  11. 3.729 km E of Unalaska, Alaska · 1735 days ago · 37 km deep · 24 km away
  12. 1.964 km S of Akutan, Alaska · 1735 days ago · 41 km deep · 65 km away
  13. 1.938 km S of Unalaska, Alaska · 1734 days ago · 71 km deep · 70 km away
  14. 2.672 km SSE of Akutan, Alaska · 1734 days ago · 35 km deep · 79 km away
  15. 3.658 km ESE of Unalaska, Alaska · 1732 days ago · 49 km deep · 59 km away
  16. 1.927 km SSW of Unalaska, Alaska · 1732 days ago · 84 km deep · 66 km away
  17. 1.931 km WSW of Unalaska, Alaska · 1732 days ago · 83 km deep · 72 km away
  18. 2.864 km SE of Akutan, Alaska · 1732 days ago · 35 km deep · 77 km away
  19. 1.732 km S of Akutan, Alaska · 1731 days ago · 74 km deep · 29 km away
  20. 2.175 km E of Akutan, Alaska · 1729 days ago · 65 km deep · 92 km away
  21. 2.054 km E of Akutan, Alaska · 1729 days ago · 70 km deep · 71 km away
  22. 1.846 km WSW of Unalaska, Alaska · 1729 days ago · 11 km deep · 88 km away
  23. 3.041 km WSW of Unalaska, Alaska · 1728 days ago · 83 km deep · 83 km away
  24. 3.057 km SW of Unalaska, Alaska · 1728 days ago · 35 km deep · 98 km away
  25. 4.058 km SSE of Unalaska, Alaska · 1728 days ago · 43 km deep · 76 km away
  26. 1.739 km SSW of Unalaska, Alaska · 1727 days ago · 74 km deep · 76 km away
  27. 2.119 km SE of Unalaska, Alaska · 1727 days ago · 77 km deep · 43 km away
  28. 1.837 km SE of Akutan, Alaska · 1727 days ago · 63 km deep · 50 km away
  29. 1.615 km WSW of Dutch Harbor, Alaska · 1726 days ago · 6 km deep · 56 km away
  30. 3.218 km W of Dutch Harbor, Alaska · 1726 days ago · 9 km deep · 58 km away
  31. 1.720 km W of Dutch Harbor, Alaska · 1726 days ago · 12 km deep · 60 km away
  32. 2.619 km W of Dutch Harbor, Alaska · 1726 days ago · 10 km deep · 59 km away
  33. 1.978 km ESE of Akutan, Alaska · 1725 days ago · 56 km deep · 91 km away
  34. 2.928 km SSE of Unalaska, Alaska · 1725 days ago · 72 km deep · 56 km away
  35. 2.926 km E of Unalaska, Alaska · 1725 days ago · 80 km deep · 27 km away
  36. 1.777 km S of Akutan, Alaska · 1723 days ago · 21 km deep · 78 km away
  37. 1.549 km SSE of Unalaska, Alaska · 1723 days ago · 42 km deep · 71 km away
  38. 1.771 km SSE of Akutan, Alaska · 1721 days ago · 36 km deep · 74 km away
  39. 1.9Fox Islands, Aleutian Islands, Alaska · 1717 days ago · 27 km deep · 66 km away
  40. 2.068 km S of Unalaska, Alaska · 1716 days ago · 16 km deep · 99 km away
  41. 1.853 km SSW of Unalaska, Alaska · 1716 days ago · 68 km deep · 91 km away
  42. 2.066 km S of Unalaska, Alaska · 1716 days ago · 20 km deep · 98 km away
  43. 1.866 km S of Unalaska, Alaska · 1716 days ago · 5 km deep · 97 km away
  44. 1.665 km SSE of Unalaska, Alaska · 1716 days ago · 33 km deep · 86 km away
  45. 2.544 km SE of Akutan, Alaska · 1714 days ago · 70 km deep · 57 km away
  46. 2.265 km N of Akutan, Alaska · 1710 days ago · 122 km deep · 72 km away
  47. 2.080 km SE of Akutan, Alaska · 1710 days ago · 54 km deep · 91 km away
  48. 2.6Fox Islands, Aleutian Islands, Alaska · 1710 days ago · 73 km deep · 73 km away
  49. 3.068 km S of Akutan, Alaska · 1709 days ago · 35 km deep · 70 km away
  50. 1.964 km E of Akutan, Alaska · 1708 days ago · 90 km deep · 81 km away
  51. 2.713 km SSW of Akutan, Alaska · 1708 days ago · 103 km deep · 15 km away
  52. 2.166 km SE of Unalaska, Alaska · 1708 days ago · 29 km deep · 73 km away
  53. 1.949 km SE of Unalaska, Alaska · 1705 days ago · 48 km deep · 63 km away
  54. 1.853 km SE of Unalaska, Alaska · 1704 days ago · 54 km deep · 67 km away
  55. 2.057 km SSW of Unalaska, Alaska · 1704 days ago · 87 km deep · 95 km away
  56. 1.760 km SE of Unalaska, Alaska · 1703 days ago · 26 km deep · 69 km away
  57. 2.06 km SE of Unalaska, Alaska · 1702 days ago · 129 km deep · 40 km away
  58. 2.190 km SSE of Akutan, Alaska · 1702 days ago · 54 km deep · 95 km away
  59. 1.824 km S of Akutan, Alaska · 1701 days ago · 104 km deep · 28 km away
  60. 1.671 km SSE of Akutan, Alaska · 1701 days ago · 51 km deep · 76 km away

The first 60 of 91.

Before

  1. 2.158 km SE of Unalaska, Alaska · 1748 days ago · 33 km deep · 65 km away
  2. 1.779 km SSE of Akutan, Alaska · 1749 days ago · 26 km deep · 83 km away
  3. 2.240 km SE of Unalaska, Alaska · 1749 days ago · 63 km deep · 54 km away
  4. 1.735 km E of Akutan, Alaska · 1749 days ago · 26 km deep · 52 km away
  5. 1.845 km ESE of Unalaska, Alaska · 1749 days ago · 66 km deep · 43 km away
  6. 1.748 km SSW of Unalaska, Alaska · 1750 days ago · 65 km deep · 89 km away
  7. 1.641 km ESE of Unalaska, Alaska · 1750 days ago · 28 km deep · 38 km away
  8. 2.943 km SE of Akutan, Alaska · 1751 days ago · 62 km deep · 53 km away
  9. 3.4Fox Islands, Aleutian Islands, Alaska · 1752 days ago · 35 km deep · 95 km away
  10. 2.254 km ENE of Akutan, Alaska · 1753 days ago · 115 km deep · 71 km away
  11. 1.973 km SE of Akutan, Alaska · 1753 days ago · 56 km deep · 82 km away
  12. 1.850 km SE of Akutan, Alaska · 1755 days ago · 56 km deep · 61 km away
  13. 2.173 km SE of Unalaska, Alaska · 1756 days ago · 21 km deep · 74 km away
  14. 2.019 km WSW of Akutan, Alaska · 1756 days ago · 90 km deep · 6 km away
  15. 2.030 km E of Akutan, Alaska · 1757 days ago · 86 km deep · 47 km away
  16. 4.574 km SE of Akutan, Alaska · 1757 days ago · 47 km deep · 86 km away
  17. 2.268 km SE of Unalaska, Alaska · 1758 days ago · 29 km deep · 78 km away
  18. 3.530 km E of Akutan, Alaska · 1760 days ago · 80 km deep · 47 km away
  19. 1.877 km SE of Unalaska, Alaska · 1761 days ago · 20 km deep · 84 km away
  20. 3.563 km NNW of Dutch Harbor, Alaska · 1761 days ago · 183 km deep · 61 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021gct6nwx (also filed as av91448911). Read Sun, Oct 4, 2026, 5:00 PM UTC.