Alaska earthquakes

M3.6 earthquake 115 km SW of Nikolski, Alaska

A magnitude 3.6 earthquake struck 115 km SW of Nikolski, Alaska on Sat, May 29, 2021, 6:05 AM HADT (15:05 UTC), 22 km (14 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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Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
3.6 (mb), minor
Local time
UTC
2021-05-29 15:05:00 UTC
Depth
21.9 km (13.6 mi), shallow
Epicenter
52.208° N, 170.080° 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 8.8 km horizontally, 7.3 km in depth
Magnitude uncertainty
±0.35
Depth from
From location
Station coverage gap
205°, poorly surrounded by stations
Stations used
16

Nearby

Within 100 km, magnitude 1.5 and up: 24 in the 60 days after this one and 4 in the 30 days before it.

After

  1. 3.3153 km SSW of Nikolski, Alaska · 1935 days ago · 10 km deep · 80 km away
  2. 3.0111 km S of Nikolski, Alaska · 1935 days ago · 136 km deep · 50 km away
  3. 3.972 km S of Nikolski, Alaska · 1932 days ago · 38 km deep · 97 km away
  4. 3.244 km W of Nikolski, Alaska · 1929 days ago · 10 km deep · 83 km away
  5. 1.742 km WSW of Nikolski, Alaska · 1918 days ago · 18 km deep · 77 km away
  6. 2.147 km WSW of Nikolski, Alaska · 1917 days ago · 7 km deep · 76 km away
  7. 2.094 km SSW of Nikolski, Alaska · 1917 days ago · 49 km deep · 57 km away
  8. 3.375 km SW of Nikolski, Alaska · 1913 days ago · 34 km deep · 43 km away
  9. 1.946 km WSW of Nikolski, Alaska · 1912 days ago · 7 km deep · 78 km away
  10. 3.863 km W of Nikolski, Alaska · 1912 days ago · 136 km deep · 96 km away
  11. 3.088 km WSW of Nikolski, Alaska · 1911 days ago · 144 km deep · 56 km away
  12. 3.8106 km SW of Nikolski, Alaska · 1902 days ago · 44 km deep · 10 km away
  13. 2.8112 km SSW of Nikolski, Alaska · 1901 days ago · 35 km deep · 29 km away
  14. 2.2178 km SW of Nikolski, Alaska · 1901 days ago · 24 km deep · 65 km away
  15. 2.8114 km SW of Nikolski, Alaska · 1900 days ago · 26 km deep · 7 km away
  16. 3.451 km SW of Nikolski, Alaska · 1896 days ago · 17 km deep · 64 km away
  17. 2.1Fox Islands, Aleutian Islands, Alaska · 1895 days ago · 25 km deep · 40 km away
  18. 2.9160 km SW of Nikolski, Alaska · 1892 days ago · 0 km deep · 45 km away
  19. 3.8123 km SSW of Nikolski, Alaska · 1892 days ago · 10 km deep · 58 km away
  20. 2.4144 km SW of Nikolski, Alaska · 1892 days ago · 19 km deep · 29 km away
  21. 1.857 km SW of Nikolski, Alaska · 1892 days ago · 32 km deep · 58 km away
  22. 2.544 km SW of Nikolski, Alaska · 1890 days ago · 33 km deep · 71 km away
  23. 1.663 km SW of Nikolski, Alaska · 1890 days ago · 27 km deep · 53 km away
  24. 2.1102 km SSW of Nikolski, Alaska · 1890 days ago · 36 km deep · 50 km away

Before

  1. 3.8100 km SSW of Nikolski, Alaska · 1947 days ago · 34 km deep · 42 km away
  2. 3.8154 km SW of Nikolski, Alaska · 1953 days ago · 35 km deep · 38 km away
  3. 3.4203 km SSW of Nikolski, Alaska · 1955 days ago · 10 km deep · 93 km away
  4. 4.9128 km WSW of Nikolski, Alaska · 1972 days ago · 54 km deep · 39 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000e912. Read Sun, Sep 27, 2026, 3:24 PM UTC.