Alaska earthquakes

M2.3 earthquake 45 km SW of Nikolski, Alaska

A magnitude 2.3 earthquake struck 45 km SW of Nikolski, Alaska on Tue, Oct 19, 2021, 3:12 AM AKDT (11:12 UTC), 20 km (12 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
2021-10-19 11:12:37 UTC
Depth
20.0 km (12.4 mi), shallow
Epicenter
52.697° N, 169.409° 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: 36 in the 60 days after this one and 15 in the 30 days before it.

After

  1. 2.9125 km SW of Nikolski, Alaska · 1797 days ago · 24 km deep · 80 km away
  2. 3.0143 km SW of Nikolski, Alaska · 1796 days ago · 17 km deep · 98 km away
  3. 3.948 km ESE of Nikolski, Alaska · 1795 days ago · 42 km deep · 83 km away
  4. 2.330 km S of Nikolski, Alaska · 1794 days ago · 51 km deep · 33 km away
  5. 3.643 km ESE of Nikolski, Alaska · 1794 days ago · 35 km deep · 76 km away
  6. 2.5136 km SW of Nikolski, Alaska · 1792 days ago · 19 km deep · 91 km away
  7. 2.044 km ESE of Nikolski, Alaska · 1791 days ago · 41 km deep · 75 km away
  8. 2.011 km S of Nikolski, Alaska · 1789 days ago · 68 km deep · 40 km away
  9. 5.269 km ESE of Nikolski, Alaska · 1788 days ago · 39 km deep · 100 km away · felt by 5 · tsunami flag
  10. 2.015 km NNE of Nikolski, Alaska · 1784 days ago · 95 km deep · 59 km away
  11. 1.632 km ESE of Nikolski, Alaska · 1783 days ago · 56 km deep · 66 km away
  12. 2.892 km SSE of Nikolski, Alaska · 1783 days ago · 10 km deep · 98 km away
  13. 3.191 km SSW of Nikolski, Alaska · 1780 days ago · 35 km deep · 58 km away
  14. 3.073 km SSW of Nikolski, Alaska · 1780 days ago · 7 km deep · 35 km away
  15. 3.167 km SW of Nikolski, Alaska · 1779 days ago · 31 km deep · 25 km away
  16. 1.739 km WSW of Nikolski, Alaska · 1778 days ago · 5 km deep · 18 km away
  17. 2.953 km SE of Nikolski, Alaska · 1776 days ago · 35 km deep · 81 km away
  18. 1.854 km E of Nikolski, Alaska · 1776 days ago · 74 km deep · 96 km away
  19. 2.083 km SW of Nikolski, Alaska · 1774 days ago · 18 km deep · 39 km away
  20. 2.556 km W of Nikolski, Alaska · 1773 days ago · 85 km deep · 34 km away
  21. 2.9122 km W of Nikolski, Alaska · 1773 days ago · 134 km deep · 91 km away
  22. 2.249 km SW of Nikolski, Alaska · 1772 days ago · 10 km deep · 7 km away
  23. 3.1Fox Islands, Aleutian Islands, Alaska · 1772 days ago · 53 km deep · 79 km away
  24. 3.828 km E of Nikolski, Alaska · 1770 days ago · 66 km deep · 69 km away
  25. 2.551 km ESE of Nikolski, Alaska · 1766 days ago · 35 km deep · 85 km away
  26. 2.032 km SE of Nikolski, Alaska · 1765 days ago · 31 km deep · 64 km away
  27. 2.248 km S of Nikolski, Alaska · 1761 days ago · 47 km deep · 40 km away
  28. 2.154 km ESE of Nikolski, Alaska · 1760 days ago · 22 km deep · 85 km away
  29. 2.561 km SW of Nikolski, Alaska · 1750 days ago · 35 km deep · 23 km away
  30. 3.154 km SW of Nikolski, Alaska · 1749 days ago · 35 km deep · 12 km away
  31. 2.388 km SSW of Nikolski, Alaska · 1747 days ago · 27 km deep · 59 km away
  32. 2.487 km S of Nikolski, Alaska · 1747 days ago · 14 km deep · 63 km away
  33. 3.299 km SW of Nikolski, Alaska · 1746 days ago · 10 km deep · 53 km away
  34. 2.950 km SE of Nikolski, Alaska · 1746 days ago · 35 km deep · 77 km away
  35. 2.798 km S of Nikolski, Alaska · 1746 days ago · 35 km deep · 88 km away
  36. 2.361 km ESE of Nikolski, Alaska · 1744 days ago · 19 km deep · 96 km away

Before

  1. 3.342 km SSE of Nikolski, Alaska · 1804 days ago · 40 km deep · 56 km away
  2. 3.9Fox Islands, Aleutian Islands, Alaska · 1804 days ago · 46 km deep · 65 km away
  3. 3.768 km SW of Nikolski, Alaska · 1807 days ago · 130 km deep · 27 km away
  4. 3.8Fox Islands, Aleutian Islands, Alaska · 1809 days ago · 35 km deep · 61 km away
  5. 2.150 km ENE of Nikolski, Alaska · 1811 days ago · 65 km deep · 95 km away
  6. 2.954 km SW of Nikolski, Alaska · 1815 days ago · 35 km deep · 17 km away
  7. 2.225 km W of Nikolski, Alaska · 1816 days ago · 86 km deep · 26 km away
  8. 3.1126 km WSW of Nikolski, Alaska · 1817 days ago · 123 km deep · 80 km away
  9. 1.846 km SE of Nikolski, Alaska · 1829 days ago · 22 km deep · 75 km away
  10. 1.944 km ESE of Nikolski, Alaska · 1829 days ago · 39 km deep · 74 km away
  11. 4.439 km ESE of Nikolski, Alaska · 1829 days ago · 39 km deep · 71 km away
  12. 2.652 km ESE of Nikolski, Alaska · 1831 days ago · 34 km deep · 84 km away
  13. 2.749 km S of Nikolski, Alaska · 1831 days ago · 13 km deep · 42 km away
  14. 3.1113 km SW of Nikolski, Alaska · 1832 days ago · 35 km deep · 69 km away
  15. 3.2104 km WNW of Nikolski, Alaska · 1832 days ago · 204 km deep · 99 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021df3jrdj. Read Sat, Sep 26, 2026, 10:32 PM UTC.