Alaska earthquakes

M2.3 earthquake 30 km S of Nikolski, Alaska

A magnitude 2.3 earthquake struck 30 km S of Nikolski, Alaska on Thu, Oct 28, 2021, 9:02 AM AKDT (17:02 UTC), 51 km (32 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
2.3 (ml), micro
Local time
UTC
2021-10-28 17:02:12 UTC
Depth
51.2 km (31.8 mi), shallow
Epicenter
52.666° N, 168.923° 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
23

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 44 in the 60 days after this one and 12 in the 30 days before it.

After

  1. 3.643 km ESE of Nikolski, Alaska · 1795 days ago · 35 km deep · 44 km away
  2. 1.890 km E of Nikolski, Alaska · 1792 days ago · 51 km deep · 99 km away
  3. 2.044 km ESE of Nikolski, Alaska · 1792 days ago · 41 km deep · 42 km away
  4. 2.011 km S of Nikolski, Alaska · 1790 days ago · 68 km deep · 20 km away
  5. 5.269 km ESE of Nikolski, Alaska · 1789 days ago · 39 km deep · 67 km away · felt by 5 · tsunami flag
  6. 2.181 km ESE of Nikolski, Alaska · 1789 days ago · 25 km deep · 79 km away
  7. 2.015 km NNE of Nikolski, Alaska · 1785 days ago · 95 km deep · 45 km away
  8. 1.632 km ESE of Nikolski, Alaska · 1784 days ago · 56 km deep · 35 km away
  9. 2.892 km SSE of Nikolski, Alaska · 1784 days ago · 10 km deep · 71 km away
  10. 3.191 km SSW of Nikolski, Alaska · 1781 days ago · 35 km deep · 62 km away
  11. 3.073 km SSW of Nikolski, Alaska · 1781 days ago · 7 km deep · 47 km away
  12. 3.167 km SW of Nikolski, Alaska · 1780 days ago · 31 km deep · 45 km away
  13. 1.739 km WSW of Nikolski, Alaska · 1779 days ago · 5 km deep · 41 km away
  14. 2.953 km SE of Nikolski, Alaska · 1777 days ago · 35 km deep · 48 km away
  15. 1.854 km E of Nikolski, Alaska · 1777 days ago · 74 km deep · 68 km away
  16. 2.083 km SW of Nikolski, Alaska · 1775 days ago · 18 km deep · 62 km away
  17. 2.556 km W of Nikolski, Alaska · 1774 days ago · 85 km deep · 61 km away
  18. 2.249 km SW of Nikolski, Alaska · 1773 days ago · 10 km deep · 32 km away
  19. 3.1Fox Islands, Aleutian Islands, Alaska · 1773 days ago · 53 km deep · 48 km away
  20. 2.292 km SE of Nikolski, Alaska · 1771 days ago · 26 km deep · 78 km away
  21. 2.172 km E of Nikolski, Alaska · 1771 days ago · 35 km deep · 82 km away
  22. 3.828 km E of Nikolski, Alaska · 1771 days ago · 66 km deep · 42 km away
  23. 3.994 km SSE of Nikolski, Alaska · 1769 days ago · 24 km deep · 74 km away
  24. 2.551 km ESE of Nikolski, Alaska · 1767 days ago · 35 km deep · 54 km away
  25. 2.032 km SE of Nikolski, Alaska · 1766 days ago · 31 km deep · 34 km away
  26. 2.248 km S of Nikolski, Alaska · 1762 days ago · 47 km deep · 18 km away
  27. 2.154 km ESE of Nikolski, Alaska · 1761 days ago · 22 km deep · 52 km away
  28. 2.561 km SW of Nikolski, Alaska · 1751 days ago · 35 km deep · 37 km away
  29. 3.154 km SW of Nikolski, Alaska · 1750 days ago · 35 km deep · 36 km away
  30. 2.388 km SSW of Nikolski, Alaska · 1748 days ago · 27 km deep · 58 km away
  31. 2.487 km S of Nikolski, Alaska · 1748 days ago · 14 km deep · 57 km away
  32. 3.299 km SW of Nikolski, Alaska · 1747 days ago · 10 km deep · 81 km away
  33. 2.950 km SE of Nikolski, Alaska · 1747 days ago · 35 km deep · 45 km away
  34. 2.798 km S of Nikolski, Alaska · 1747 days ago · 35 km deep · 70 km away
  35. 2.361 km ESE of Nikolski, Alaska · 1745 days ago · 19 km deep · 64 km away
  36. 1.874 km E of Nikolski, Alaska · 1745 days ago · 40 km deep · 87 km away
  37. 2.565 km SSW of Nikolski, Alaska · 1743 days ago · 28 km deep · 38 km away
  38. 3.2117 km SSW of Nikolski, Alaska · 1743 days ago · 35 km deep · 89 km away
  39. 4.054 km ESE of Nikolski, Alaska · 1741 days ago · 35 km deep · 52 km away · felt by 1
  40. 4.353 km ESE of Nikolski, Alaska · 1741 days ago · 43 km deep · 51 km away
  41. 2.059 km ESE of Nikolski, Alaska · 1741 days ago · 22 km deep · 60 km away
  42. 2.363 km ESE of Nikolski, Alaska · 1741 days ago · 22 km deep · 64 km away
  43. 2.2Fox Islands, Aleutian Islands, Alaska · 1739 days ago · 29 km deep · 46 km away
  44. 3.4113 km SW of Nikolski, Alaska · 1739 days ago · 35 km deep · 89 km away

Before

  1. 3.948 km ESE of Nikolski, Alaska · 1796 days ago · 42 km deep · 52 km away
  2. 2.345 km SW of Nikolski, Alaska · 1804 days ago · 20 km deep · 33 km away
  3. 3.342 km SSE of Nikolski, Alaska · 1805 days ago · 40 km deep · 23 km away
  4. 3.9Fox Islands, Aleutian Islands, Alaska · 1805 days ago · 46 km deep · 95 km away
  5. 3.768 km SW of Nikolski, Alaska · 1808 days ago · 130 km deep · 45 km away
  6. 3.782 km E of Nikolski, Alaska · 1810 days ago · 42 km deep · 88 km away
  7. 3.8Fox Islands, Aleutian Islands, Alaska · 1810 days ago · 35 km deep · 64 km away
  8. 2.150 km ENE of Nikolski, Alaska · 1812 days ago · 65 km deep · 69 km away
  9. 2.954 km SW of Nikolski, Alaska · 1816 days ago · 35 km deep · 32 km away
  10. 2.225 km W of Nikolski, Alaska · 1817 days ago · 86 km deep · 34 km away
  11. 2.984 km E of Nikolski, Alaska · 1818 days ago · 35 km deep · 89 km away
  12. 2.191 km SE of Nikolski, Alaska · 1820 days ago · 26 km deep · 74 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021du2wab7. Read Sun, Sep 27, 2026, 10:00 PM UTC.