Alaska earthquakes

M2.3 earthquake 127 km SW of Nikolski, Alaska

A magnitude 2.3 earthquake struck 127 km SW of Nikolski, Alaska on Mon, Aug 23, 2021, 5:26 AM HADT (14:26 UTC), 33 km (20 mi) below the surface.

A larger quake followed: M5.2 185 km SW of Nikolski, Alaska. This one was a foreshock.

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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
2021-08-23 14:26:14 UTC
Depth
32.9 km (20.4 mi), shallow
Epicenter
52.268° N, 170.395° 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
18

Nearby

Within 100 km, magnitude 1.5 and up: 26 in the 60 days after this one and 31 in the 30 days before it.

After

  1. 2.850 km SW of Nikolski, Alaska · 1857 days ago · 10 km deep · 81 km away
  2. 2.784 km SW of Nikolski, Alaska · 1857 days ago · 25 km deep · 55 km away
  3. 2.957 km W of Nikolski, Alaska · 1856 days ago · 11 km deep · 89 km away
  4. 1.965 km SSW of Nikolski, Alaska · 1855 days ago · 40 km deep · 71 km away
  5. 3.0196 km SW of Nikolski, Alaska · 1853 days ago · 35 km deep · 69 km away
  6. 2.4152 km WSW of Nikolski, Alaska · 1849 days ago · 60 km deep · 37 km away
  7. 3.3112 km SW of Nikolski, Alaska · 1848 days ago · 35 km deep · 30 km away
  8. 2.6139 km WSW of Nikolski, Alaska · 1845 days ago · 88 km deep · 53 km away
  9. 3.4126 km W of Nikolski, Alaska · 1842 days ago · 217 km deep · 88 km away
  10. 3.367 km SW of Nikolski, Alaska · 1839 days ago · 35 km deep · 65 km away
  11. 3.195 km SSW of Nikolski, Alaska · 1836 days ago · 7 km deep · 67 km away
  12. 3.1113 km SW of Nikolski, Alaska · 1832 days ago · 35 km deep · 30 km away
  13. 3.7198 km SW of Nikolski, Alaska · 1827 days ago · 43 km deep · 73 km away
  14. 3.9191 km ESE of Atka, Alaska · 1825 days ago · 44 km deep · 91 km away
  15. 5.2185 km SW of Nikolski, Alaska · 1822 days ago · 35 km deep · 58 km away · felt by 3
  16. 4.8190 km SW of Nikolski, Alaska · 1822 days ago · 35 km deep · 62 km away
  17. 3.0191 km SW of Nikolski, Alaska · 1821 days ago · 2 km deep · 64 km away
  18. 4.5184 km WSW of Nikolski, Alaska · 1819 days ago · 46 km deep · 59 km away
  19. 3.1126 km WSW of Nikolski, Alaska · 1817 days ago · 123 km deep · 10 km away
  20. 2.8Fox Islands, Aleutian Islands, Alaska · 1816 days ago · 20 km deep · 62 km away
  21. 2.954 km SW of Nikolski, Alaska · 1815 days ago · 35 km deep · 77 km away
  22. 3.8Fox Islands, Aleutian Islands, Alaska · 1809 days ago · 35 km deep · 73 km away
  23. 3.768 km SW of Nikolski, Alaska · 1807 days ago · 130 km deep · 65 km away
  24. 3.4180 km WSW of Nikolski, Alaska · 1804 days ago · 21 km deep · 55 km away
  25. 3.9Fox Islands, Aleutian Islands, Alaska · 1804 days ago · 46 km deep · 26 km away
  26. 2.345 km SW of Nikolski, Alaska · 1803 days ago · 20 km deep · 82 km away

Before

  1. 3.268 km SW of Nikolski, Alaska · 1861 days ago · 87 km deep · 60 km away
  2. 3.1166 km SW of Nikolski, Alaska · 1863 days ago · 37 km deep · 52 km away
  3. 2.047 km SW of Nikolski, Alaska · 1863 days ago · 5 km deep · 81 km away
  4. 3.7157 km SW of Nikolski, Alaska · 1863 days ago · 25 km deep · 30 km away
  5. 3.194 km SW of Nikolski, Alaska · 1864 days ago · 10 km deep · 46 km away
  6. 2.097 km WSW of Nikolski, Alaska · 1864 days ago · 5 km deep · 45 km away
  7. 2.294 km WSW of Nikolski, Alaska · 1864 days ago · 2 km deep · 47 km away
  8. 3.8175 km SW of Nikolski, Alaska · 1865 days ago · 35 km deep · 48 km away
  9. 2.1112 km SW of Nikolski, Alaska · 1869 days ago · 33 km deep · 25 km away
  10. 2.1191 km SW of Nikolski, Alaska · 1870 days ago · 38 km deep · 64 km away
  11. 1.996 km WSW of Nikolski, Alaska · 1870 days ago · 5 km deep · 33 km away
  12. 2.093 km WSW of Nikolski, Alaska · 1870 days ago · 3 km deep · 43 km away
  13. 2.5183 km SW of Nikolski, Alaska · 1871 days ago · 37 km deep · 60 km away
  14. 1.985 km SSW of Nikolski, Alaska · 1871 days ago · 30 km deep · 73 km away
  15. 1.9130 km SW of Nikolski, Alaska · 1872 days ago · 21 km deep · 15 km away
  16. 2.778 km SSW of Nikolski, Alaska · 1872 days ago · 35 km deep · 61 km away
  17. 2.956 km SW of Nikolski, Alaska · 1873 days ago · 34 km deep · 72 km away
  18. 3.0174 km E of Atka, Alaska · 1876 days ago · 35 km deep · 96 km away
  19. 3.1140 km SW of Nikolski, Alaska · 1877 days ago · 21 km deep · 17 km away
  20. 2.2Fox Islands, Aleutian Islands, Alaska · 1880 days ago · 20 km deep · 62 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021asvs89f. Read Sat, Sep 26, 2026, 9:51 PM UTC.