Alaska earthquakes

M2.3 earthquake 31 km E of Chignik, Alaska

A magnitude 2.3 earthquake struck 31 km E of Chignik, Alaska on Tue, May 11, 2021, 12:09 AM AKDT (08:09 UTC), 92 km (57 mi) below the surface.

Automatic solution: the magnitude and location may still be revised.

A larger quake followed: M3.7 15 km NW of Chignik Lake, 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
2021-05-11 08:09:18 UTC
Depth
91.8 km (57.0 mi), intermediate-depth
Epicenter
56.313° N, 157.897° W
Region
Alaska
Tsunami flag
No
Status
Automatic solution, may be revised

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

An automatic solution; a seismologist may revise it.

Stations used
18

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 19 in the 60 days after this one and 7 in the 30 days before it.

After

  1. 1.8Alaska Peninsula · 1962 days ago · 12 km deep · 76 km away
  2. 2.558 km ESE of Chignik, Alaska · 1962 days ago · 45 km deep · 35 km away
  3. 2.471 km SSE of Chignik, Alaska · 1959 days ago · 8 km deep · 64 km away
  4. 1.686 km SSE of Ugashik, Alaska · 1952 days ago · 71 km deep · 72 km away
  5. 2.633 km ENE of Port Heiden, Alaska · 1951 days ago · 141 km deep · 84 km away
  6. 3.4105 km ENE of Chignik, Alaska · 1939 days ago · 82 km deep · 75 km away · felt by 1
  7. 2.084 km SSE of Ugashik, Alaska · 1938 days ago · 89 km deep · 72 km away
  8. 2.8107 km SE of Chignik, Alaska · 1936 days ago · 5 km deep · 86 km away
  9. 1.770 km ENE of Chignik, Alaska · 1931 days ago · 60 km deep · 41 km away
  10. 2.577 km SE of Chignik, Alaska · 1927 days ago · 20 km deep · 56 km away
  11. 2.882 km ENE of Chignik, Alaska · 1925 days ago · 55 km deep · 54 km away
  12. 3.715 km NW of Chignik Lake, Alaska · 1923 days ago · 9 km deep · 64 km away · felt by 1
  13. 1.815 km ESE of Chignik, Alaska · 1916 days ago · 83 km deep · 18 km away
  14. 2.287 km ENE of Chignik, Alaska · 1915 days ago · 65 km deep · 59 km away
  15. 2.5110 km E of Chignik, Alaska · 1914 days ago · 54 km deep · 79 km away
  16. 2.645 km SSW of Ugashik, Alaska · 1912 days ago · 23 km deep · 93 km away
  17. 2.042 km ENE of Chignik, Alaska · 1910 days ago · 66 km deep · 17 km away
  18. 1.940 km W of Chignik Lake, Alaska · 1907 days ago · 12 km deep · 94 km away
  19. 2.172 km E of Chignik, Alaska · 1906 days ago · 55 km deep · 41 km away

Before

  1. 3.319 km ESE of Chignik, Alaska · 1966 days ago · 96 km deep · 16 km away
  2. 2.151 km SSE of Ugashik, Alaska · 1971 days ago · 90 km deep · 95 km away
  3. 2.348 km SE of Chignik, Alaska · 1975 days ago · 36 km deep · 42 km away
  4. 2.191 km SSE of Ugashik, Alaska · 1985 days ago · 77 km deep · 77 km away
  5. 2.7114 km E of Chignik, Alaska · 1986 days ago · 35 km deep · 84 km away
  6. 2.561 km ESE of Chignik, Alaska · 1992 days ago · 55 km deep · 37 km away
  7. 2.6114 km E of Chignik, Alaska · 1993 days ago · 51 km deep · 83 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak02160s7wfg. Read Sat, Sep 26, 2026, 7:02 PM UTC.