Alaska earthquakes

M3.8 earthquake 100 km SSW of Nikolski, Alaska

A magnitude 3.8 earthquake struck 100 km SSW of Nikolski, Alaska on Sat, May 29, 2021, 4:05 AM AKDT (12:05 UTC), 34 km (21 mi) below the surface.

A larger quake followed: M3.9 72 km S 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
3.8 (mb), minor
Local time
UTC
2021-05-29 12:05:46 UTC
Depth
34.1 km (21.2 mi), shallow
Epicenter
52.120° N, 169.481° 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.

Location uncertainty
About 7.1 km horizontally, 8.1 km in depth
Magnitude uncertainty
±0.11
Depth from
From location
Station coverage gap
177°
Stations used
37

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 31 in the 60 days after this one and 4 in the 30 days before it.

After

  1. 3.6115 km SW of Nikolski, Alaska · 1948 days ago · 22 km deep · 42 km away
  2. 2.6140 km SSE of Nikolski, Alaska · 1948 days ago · 10 km deep · 93 km away
  3. 3.3153 km SSW of Nikolski, Alaska · 1936 days ago · 10 km deep · 57 km away
  4. 3.0111 km S of Nikolski, Alaska · 1936 days ago · 136 km deep · 71 km away
  5. 3.556 km SSE of Nikolski, Alaska · 1933 days ago · 35 km deep · 75 km away
  6. 3.972 km S of Nikolski, Alaska · 1933 days ago · 38 km deep · 59 km away
  7. 3.244 km W of Nikolski, Alaska · 1930 days ago · 10 km deep · 84 km away
  8. 1.742 km WSW of Nikolski, Alaska · 1918 days ago · 18 km deep · 73 km away
  9. 2.154 km SSE of Nikolski, Alaska · 1918 days ago · 51 km deep · 80 km away
  10. 2.147 km WSW of Nikolski, Alaska · 1918 days ago · 7 km deep · 76 km away
  11. 2.094 km SSW of Nikolski, Alaska · 1918 days ago · 49 km deep · 15 km away
  12. 3.375 km SW of Nikolski, Alaska · 1914 days ago · 34 km deep · 50 km away
  13. 1.946 km WSW of Nikolski, Alaska · 1913 days ago · 7 km deep · 78 km away
  14. 3.088 km WSW of Nikolski, Alaska · 1912 days ago · 144 km deep · 78 km away
  15. 2.231 km SSE of Nikolski, Alaska · 1909 days ago · 75 km deep · 84 km away
  16. 2.514 km SSE of Nikolski, Alaska · 1907 days ago · 65 km deep · 92 km away
  17. 3.8106 km SW of Nikolski, Alaska · 1903 days ago · 44 km deep · 36 km away
  18. 2.8112 km SSW of Nikolski, Alaska · 1902 days ago · 35 km deep · 17 km away
  19. 1.533 km SSE of Nikolski, Alaska · 1902 days ago · 41 km deep · 87 km away
  20. 2.8114 km SW of Nikolski, Alaska · 1901 days ago · 26 km deep · 35 km away
  21. 2.315 km S of Nikolski, Alaska · 1898 days ago · 62 km deep · 86 km away
  22. 3.451 km SW of Nikolski, Alaska · 1897 days ago · 17 km deep · 54 km away
  23. 2.1Fox Islands, Aleutian Islands, Alaska · 1896 days ago · 25 km deep · 38 km away
  24. 2.9160 km SW of Nikolski, Alaska · 1893 days ago · 0 km deep · 75 km away
  25. 3.8123 km SSW of Nikolski, Alaska · 1893 days ago · 10 km deep · 27 km away
  26. 2.4144 km SW of Nikolski, Alaska · 1893 days ago · 19 km deep · 66 km away
  27. 1.857 km SW of Nikolski, Alaska · 1892 days ago · 32 km deep · 54 km away
  28. 2.544 km SW of Nikolski, Alaska · 1891 days ago · 33 km deep · 61 km away
  29. 1.663 km SW of Nikolski, Alaska · 1891 days ago · 27 km deep · 42 km away
  30. 2.1102 km SSW of Nikolski, Alaska · 1891 days ago · 36 km deep · 9 km away
  31. 2.384 km SSE of Nikolski, Alaska · 1890 days ago · 38 km deep · 69 km away

Before

  1. 3.8154 km SW of Nikolski, Alaska · 1954 days ago · 35 km deep · 72 km away
  2. 2.955 km SE of Nikolski, Alaska · 1963 days ago · 35 km deep · 98 km away
  3. 2.9106 km S of Nikolski, Alaska · 1964 days ago · 35 km deep · 62 km away
  4. 4.9128 km WSW of Nikolski, Alaska · 1973 days ago · 54 km deep · 79 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000e90y. Read Mon, Sep 28, 2026, 12:44 PM UTC.