Alaska earthquakes

M3.7 earthquake 126 km SSE of Atka, Alaska

A magnitude 3.7 earthquake struck 126 km SSE of Atka, Alaska on Sat, May 1, 2021, 6:44 AM HADT (15:44 UTC), 38 km (24 mi) below the surface.

A larger quake followed: M3.9 55 km SSE of Atka, 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
3.7 (mb), minor
Local time
UTC
2021-05-01 15:44:37 UTC
Depth
38.4 km (23.9 mi), shallow
Epicenter
51.164° N, 173.433° 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 10.7 km horizontally, 13.9 km in depth
Magnitude uncertainty
±0.09
Depth from
From location
Station coverage gap
224°, poorly surrounded by stations
Stations used
29

Nearby

Within 100 km, magnitude 1.5 and up: 25 in the 60 days after this one and 24 in the 30 days before it.

After

  1. 3.345 km SSE of Atka, Alaska · 1971 days ago · 56 km deep · 81 km away
  2. 2.684 km SSE of Atka, Alaska · 1960 days ago · 35 km deep · 43 km away
  3. 3.0177 km SSE of Atka, Alaska · 1959 days ago · 22 km deep · 51 km away
  4. 2.1140 km SSE of Atka, Alaska · 1955 days ago · 38 km deep · 17 km away
  5. 3.955 km SSE of Atka, Alaska · 1951 days ago · 35 km deep · 71 km away
  6. 4.295 km SE of Atka, Alaska · 1951 days ago · 16 km deep · 44 km away
  7. 4.281 km SE of Atka, Alaska · 1951 days ago · 41 km deep · 59 km away
  8. 5.175 km SE of Atka, Alaska · 1951 days ago · 21 km deep · 64 km away
  9. 3.879 km SE of Atka, Alaska · 1951 days ago · 45 km deep · 57 km away
  10. 3.6123 km SSE of Atka, Alaska · 1951 days ago · 39 km deep · 17 km away
  11. 4.198 km SE of Atka, Alaska · 1951 days ago · 45 km deep · 39 km away
  12. 4.099 km SE of Atka, Alaska · 1951 days ago · 35 km deep · 41 km away
  13. 2.4118 km SSE of Atka, Alaska · 1942 days ago · 37 km deep · 29 km away
  14. 3.3107 km SSE of Atka, Alaska · 1939 days ago · 33 km deep · 25 km away
  15. 2.0141 km SE of Atka, Alaska · 1939 days ago · 24 km deep · 53 km away
  16. 2.6163 km S of Atka, Alaska · 1937 days ago · 27 km deep · 75 km away
  17. 2.5159 km SSE of Atka, Alaska · 1936 days ago · 10 km deep · 37 km away
  18. 3.2Andreanof Islands, Aleutian Islands, Alaska · 1932 days ago · 35 km deep · 51 km away
  19. 2.9Andreanof Islands, Aleutian Islands, Alaska · 1931 days ago · 35 km deep · 37 km away
  20. 2.7Andreanof Islands, Aleutian Islands, Alaska · 1930 days ago · 35 km deep · 62 km away
  21. 4.189 km SSE of Atka, Alaska · 1930 days ago · 30 km deep · 39 km away
  22. 2.994 km SE of Atka, Alaska · 1919 days ago · 11 km deep · 38 km away
  23. 2.4135 km SSE of Atka, Alaska · 1914 days ago · 32 km deep · 31 km away
  24. 4.066 km ESE of Atka, AK · 1914 days ago · 63 km deep · 96 km away
  25. 2.2146 km S of Atka, Alaska · 1913 days ago · 34 km deep · 48 km away

Before

  1. 2.363 km S of Atka, Alaska · 1974 days ago · 21 km deep · 73 km away
  2. 2.194 km SE of Atka, Alaska · 1974 days ago · 18 km deep · 45 km away
  3. 1.943 km SSW of Atka, Alaska · 1976 days ago · 44 km deep · 98 km away
  4. 1.978 km SE of Atka, Alaska · 1978 days ago · 12 km deep · 61 km away
  5. 2.5191 km SSE of Atka, Alaska · 1980 days ago · 10 km deep · 67 km away
  6. 3.168 km SE of Atka, Alaska · 1980 days ago · 35 km deep · 74 km away
  7. 4.0163 km SE of Atka, Alaska · 1982 days ago · 26 km deep · 65 km away
  8. 2.228 km SE of Atka, Alaska · 1984 days ago · 70 km deep · 99 km away
  9. 2.933 km S of Atka, Alaska · 1984 days ago · 3 km deep · 97 km away
  10. 1.943 km SE of Atka, Alaska · 1985 days ago · 17 km deep · 87 km away
  11. 2.0124 km S of Atka, Alaska · 1986 days ago · 18 km deep · 64 km away
  12. 1.628 km SE of Atka, Alaska · 1986 days ago · 11 km deep · 99 km away
  13. 1.978 km SSE of Atka, Alaska · 1986 days ago · 17 km deep · 48 km away
  14. 2.086 km S of Atka, Alaska · 1988 days ago · 26 km deep · 67 km away
  15. 2.7139 km SE of Atka, Alaska · 1993 days ago · 10 km deep · 60 km away
  16. 2.6115 km S of Atka, Alaska · 1995 days ago · 10 km deep · 59 km away
  17. 2.7121 km S of Atka, Alaska · 1995 days ago · 10 km deep · 61 km away
  18. 2.163 km ESE of Atka, Alaska · 1995 days ago · 24 km deep · 84 km away
  19. 2.2Andreanof Islands, Aleutian Islands, Alaska · 1996 days ago · 15 km deep · 32 km away
  20. 2.642 km S of Atka, Alaska · 1996 days ago · 77 km deep · 92 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000e10l. Read Thu, Sep 24, 2026, 9:38 AM UTC.