Alaska earthquakes

M1.8 earthquake 105 km ESE of Nikolski, Alaska

A magnitude 1.8 earthquake struck 105 km ESE of Nikolski, Alaska on Thu, Oct 7, 2021, 1:30 AM AKDT (09:30 UTC), 17 km (10 mi) below the surface.

A larger quake followed: M5.2 69 km ESE 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
1.8 (ml), micro
Local time
UTC
2021-10-07 09:30:27 UTC
Depth
16.5 km (10.3 mi), shallow
Epicenter
52.569° N, 167.426° 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
16

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 73 in the 60 days after this one and 18 in the 30 days before it.

After

  1. 4.177 km SSW of Unalaska, Alaska · 1815 days ago · 44 km deep · 80 km away
  2. 2.088 km S of Unalaska, Alaska · 1813 days ago · 41 km deep · 73 km away
  3. 3.091 km SW of Unalaska, Alaska · 1812 days ago · 35 km deep · 75 km away
  4. 2.150 km ENE of Nikolski, Alaska · 1812 days ago · 65 km deep · 72 km away
  5. 3.782 km E of Nikolski, Alaska · 1810 days ago · 42 km deep · 33 km away
  6. 2.082 km SW of Unalaska, Alaska · 1810 days ago · 73 km deep · 96 km away
  7. 1.8103 km ESE of Nikolski, Alaska · 1810 days ago · 26 km deep · 18 km away
  8. 2.882 km S of Unalaska, Alaska · 1809 days ago · 34 km deep · 78 km away
  9. 3.887 km SSW of Unalaska, Alaska · 1809 days ago · 35 km deep · 70 km away
  10. 2.890 km S of Unalaska, Alaska · 1808 days ago · 35 km deep · 71 km away
  11. 3.342 km SSE of Nikolski, Alaska · 1805 days ago · 40 km deep · 79 km away
  12. 3.686 km ENE of Nikolski, Alaska · 1803 days ago · 76 km deep · 75 km away
  13. 1.787 km SSW of Unalaska, Alaska · 1803 days ago · 26 km deep · 70 km away
  14. 3.199 km E of Nikolski, Alaska · 1800 days ago · 35 km deep · 28 km away
  15. 3.0102 km E of Nikolski, Alaska · 1800 days ago · 35 km deep · 29 km away
  16. 2.9102 km E of Nikolski, Alaska · 1800 days ago · 35 km deep · 27 km away
  17. 3.948 km ESE of Nikolski, Alaska · 1796 days ago · 42 km deep · 57 km away
  18. 2.590 km S of Unalaska, Alaska · 1796 days ago · 29 km deep · 76 km away
  19. 3.643 km ESE of Nikolski, Alaska · 1795 days ago · 35 km deep · 62 km away
  20. 1.9Fox Islands, Aleutian Islands, Alaska · 1795 days ago · 21 km deep · 82 km away
  21. 4.477 km S of Unalaska, Alaska · 1795 days ago · 10 km deep · 84 km away
  22. 3.172 km SSW of Unalaska, Alaska · 1795 days ago · 35 km deep · 87 km away
  23. 3.470 km SSW of Unalaska, Alaska · 1795 days ago · 30 km deep · 88 km away
  24. 2.074 km SSW of Unalaska, Alaska · 1795 days ago · 26 km deep · 85 km away
  25. 3.676 km S of Unalaska, Alaska · 1792 days ago · 35 km deep · 86 km away
  26. 1.890 km E of Nikolski, Alaska · 1792 days ago · 51 km deep · 43 km away
  27. 1.7108 km S of Unalaska, Alaska · 1792 days ago · 13 km deep · 64 km away
  28. 1.786 km SSW of Unalaska, Alaska · 1792 days ago · 26 km deep · 73 km away
  29. 2.077 km S of Unalaska, Alaska · 1792 days ago · 26 km deep · 83 km away
  30. 2.0127 km S of Unalaska, Alaska · 1792 days ago · 6 km deep · 55 km away
  31. 2.044 km ESE of Nikolski, Alaska · 1792 days ago · 41 km deep · 61 km away
  32. 2.686 km ENE of Nikolski, Alaska · 1791 days ago · 64 km deep · 71 km away
  33. 1.774 km SSW of Unalaska, Alaska · 1791 days ago · 42 km deep · 85 km away
  34. 5.269 km ESE of Nikolski, Alaska · 1789 days ago · 39 km deep · 36 km away · felt by 5 · tsunami flag
  35. 2.181 km ESE of Nikolski, Alaska · 1789 days ago · 25 km deep · 24 km away
  36. 2.759 km SSW of Unalaska, Alaska · 1789 days ago · 29 km deep · 97 km away
  37. 2.298 km S of Unalaska, Alaska · 1787 days ago · 26 km deep · 82 km away
  38. 1.681 km SW of Unalaska, Alaska · 1786 days ago · 13 km deep · 81 km away
  39. 1.5103 km E of Nikolski, Alaska · 1786 days ago · 26 km deep · 44 km away
  40. 1.5105 km E of Nikolski, Alaska · 1786 days ago · 7 km deep · 49 km away
  41. 3.282 km S of Unalaska, Alaska · 1785 days ago · 27 km deep · 81 km away
  42. 2.182 km S of Unalaska, Alaska · 1785 days ago · 26 km deep · 82 km away
  43. 1.632 km ESE of Nikolski, Alaska · 1784 days ago · 56 km deep · 73 km away
  44. 2.892 km SSE of Nikolski, Alaska · 1784 days ago · 10 km deep · 66 km away
  45. 3.986 km SSW of Unalaska, Alaska · 1783 days ago · 42 km deep · 70 km away
  46. 1.894 km SSW of Unalaska, Alaska · 1783 days ago · 26 km deep · 62 km away
  47. 2.675 km SSW of Unalaska, Alaska · 1779 days ago · 41 km deep · 84 km away
  48. 1.5100 km SSW of Unalaska, Alaska · 1779 days ago · 13 km deep · 58 km away
  49. 2.953 km SE of Nikolski, Alaska · 1777 days ago · 35 km deep · 54 km away
  50. 1.854 km E of Nikolski, Alaska · 1777 days ago · 74 km deep · 61 km away
  51. 2.290 km SW of Unalaska, Alaska · 1776 days ago · 53 km deep · 73 km away
  52. 1.965 km S of Unalaska, Alaska · 1776 days ago · 71 km deep · 97 km away
  53. 2.0107 km ESE of Nikolski, Alaska · 1776 days ago · 15 km deep · 10 km away
  54. 1.791 km SSW of Unalaska, Alaska · 1774 days ago · 26 km deep · 66 km away
  55. 3.1Fox Islands, Aleutian Islands, Alaska · 1773 days ago · 53 km deep · 62 km away
  56. 1.892 km SSW of Unalaska, Alaska · 1772 days ago · 46 km deep · 68 km away
  57. 2.292 km SE of Nikolski, Alaska · 1771 days ago · 26 km deep · 42 km away
  58. 2.172 km E of Nikolski, Alaska · 1771 days ago · 35 km deep · 46 km away
  59. 3.828 km E of Nikolski, Alaska · 1771 days ago · 66 km deep · 78 km away
  60. 2.983 km SSW of Unalaska, Alaska · 1770 days ago · 35 km deep · 76 km away

The first 60 of 73.

Before

  1. 2.984 km E of Nikolski, Alaska · 1818 days ago · 35 km deep · 30 km away
  2. 2.5107 km ESE of Nikolski, Alaska · 1819 days ago · 23 km deep · 12 km away
  3. 2.191 km SE of Nikolski, Alaska · 1820 days ago · 26 km deep · 47 km away
  4. 1.9107 km E of Nikolski, Alaska · 1824 days ago · 14 km deep · 41 km away
  5. 3.085 km SSW of Unalaska, Alaska · 1826 days ago · 35 km deep · 73 km away
  6. 3.2109 km SSW of Unalaska, Alaska · 1827 days ago · 29 km deep · 53 km away
  7. 1.846 km SE of Nikolski, Alaska · 1830 days ago · 22 km deep · 60 km away
  8. 1.944 km ESE of Nikolski, Alaska · 1830 days ago · 39 km deep · 62 km away
  9. 4.439 km ESE of Nikolski, Alaska · 1830 days ago · 39 km deep · 66 km away
  10. 2.684 km S of Unalaska, Alaska · 1830 days ago · 35 km deep · 77 km away
  11. 2.098 km E of Nikolski, Alaska · 1831 days ago · 26 km deep · 35 km away
  12. 2.652 km ESE of Nikolski, Alaska · 1832 days ago · 34 km deep · 52 km away
  13. 2.749 km S of Nikolski, Alaska · 1832 days ago · 13 km deep · 99 km away
  14. 2.380 km SE of Nikolski, Alaska · 1836 days ago · 25 km deep · 42 km away
  15. 1.8102 km E of Nikolski, Alaska · 1844 days ago · 25 km deep · 37 km away
  16. 3.220 km SSE of Nikolski, Alaska · 1844 days ago · 83 km deep · 89 km away
  17. 1.578 km SW of Unalaska, Alaska · 1844 days ago · 31 km deep · 95 km away
  18. 2.071 km SE of Nikolski, Alaska · 1846 days ago · 25 km deep · 58 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021cv80kcb. Read Sun, Sep 27, 2026, 11:29 PM UTC.