Alaska earthquakes

M1.7 earthquake 69 km S of Unalaska, Alaska

A magnitude 1.7 earthquake struck 69 km S of Unalaska, Alaska on Thu, Apr 15, 2021, 4:02 AM AKDT (12:02 UTC), 21 km (13 mi) below the surface.

A larger quake followed: M3.8 81 km S of Unalaska, Alaska. This one was a foreshock.

Unalaska forecastMore in Alaska

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
1.7 (ml), micro
Local time
UTC
2021-04-15 12:02:28 UTC
Depth
21.0 km (13.0 mi), shallow
Epicenter
53.254° N, 166.554° 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
13

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 34 in the 60 days after this one and 44 in the 30 days before it.

After

  1. 2.6131 km S of Unalaska, Alaska · 1991 days ago · 4 km deep · 63 km away
  2. 3.0142 km ESE of Nikolski, Alaska · 1990 days ago · 6 km deep · 75 km away
  3. 1.663 km SSW of Unalaska, Alaska · 1990 days ago · 30 km deep · 29 km away
  4. 1.687 km SE of Unalaska, Alaska · 1989 days ago · 68 km deep · 64 km away
  5. 1.582 km SW of Unalaska, Alaska · 1989 days ago · 62 km deep · 49 km away
  6. 2.68 km WNW of Dutch Harbor, Alaska · 1988 days ago · 114 km deep · 73 km away
  7. 1.523 km W of Dutch Harbor, Alaska · 1987 days ago · 5 km deep · 73 km away
  8. 1.926 km ESE of Unalaska, Alaska · 1985 days ago · 74 km deep · 65 km away
  9. 2.169 km SE of Unalaska, Alaska · 1985 days ago · 23 km deep · 63 km away
  10. 3.286 km E of Nikolski, Alaska · 1984 days ago · 35 km deep · 79 km away
  11. 2.039 km SSE of Akutan, Alaska · 1984 days ago · 77 km deep · 92 km away
  12. 1.865 km SE of Unalaska, Alaska · 1982 days ago · 11 km deep · 53 km away
  13. 1.778 km SSE of Akutan, Alaska · 1982 days ago · 17 km deep · 85 km away
  14. 1.730 km SW of Unalaska, Alaska · 1981 days ago · 79 km deep · 47 km away
  15. 1.684 km SSE of Akutan, Alaska · 1980 days ago · 46 km deep · 89 km away
  16. 2.792 km ESE of Nikolski, Alaska · 1980 days ago · 26 km deep · 87 km away
  17. 1.731 km SE of Unalaska, Alaska · 1980 days ago · 43 km deep · 48 km away
  18. 2.6105 km S of Unalaska, Alaska · 1978 days ago · 32 km deep · 39 km away
  19. 3.6119 km E of Nikolski, Alaska · 1977 days ago · 51 km deep · 58 km away
  20. 2.160 km SSE of Akutan, Alaska · 1973 days ago · 68 km deep · 97 km away
  21. 1.629 km W of Akutan, Alaska · 1973 days ago · 71 km deep · 98 km away
  22. 2.088 km E of Nikolski, Alaska · 1972 days ago · 50 km deep · 84 km away
  23. 2.058 km SSE of Akutan, Alaska · 1972 days ago · 52 km deep · 81 km away
  24. 1.875 km S of Akutan, Alaska · 1972 days ago · 22 km deep · 70 km away
  25. 1.57 km N of Dutch Harbor, Alaska · 1970 days ago · 10 km deep · 78 km away
  26. 1.972 km SSE of Unalaska, Alaska · 1962 days ago · 20 km deep · 34 km away
  27. 1.645 km SSE of Akutan, Alaska · 1962 days ago · 34 km deep · 92 km away
  28. 1.988 km SSE of Akutan, Alaska · 1960 days ago · 26 km deep · 95 km away
  29. 3.733 km SSW of Unalaska, Alaska · 1956 days ago · 77 km deep · 43 km away
  30. 1.686 km SSW of Unalaska, Alaska · 1945 days ago · 23 km deep · 46 km away
  31. 3.472 km SSW of Unalaska, Alaska · 1945 days ago · 53 km deep · 19 km away
  32. 3.881 km S of Unalaska, Alaska · 1941 days ago · 35 km deep · 13 km away
  33. 1.929 km ESE of Unalaska, Alaska · 1940 days ago · 73 km deep · 69 km away
  34. 2.042 km SSW of Unalaska, Alaska · 1938 days ago · 75 km deep · 36 km away

Before

  1. 1.986 km SW of Unalaska, Alaska · 1992 days ago · 26 km deep · 55 km away
  2. 2.582 km SSE of Akutan, Alaska · 1993 days ago · 35 km deep · 91 km away
  3. 1.877 km SSE of Akutan, Alaska · 1993 days ago · 48 km deep · 89 km away
  4. 1.872 km SSE of Akutan, Alaska · 1993 days ago · 59 km deep · 92 km away
  5. 2.024 km S of Akutan, Alaska · 1993 days ago · 98 km deep · 88 km away
  6. 1.969 km E of Nikolski, Alaska · 1994 days ago · 40 km deep · 90 km away
  7. 1.879 km SE of Unalaska, Alaska · 1994 days ago · 16 km deep · 53 km away
  8. 2.058 km S of Akutan, Alaska · 1994 days ago · 82 km deep · 72 km away
  9. 2.9Fox Islands, Aleutian Islands, Alaska · 1996 days ago · 52 km deep · 34 km away
  10. 2.045 km SE of Unalaska, Alaska · 1996 days ago · 39 km deep · 47 km away
  11. 1.570 km WSW of Unalaska, Alaska · 1997 days ago · 8 km deep · 73 km away
  12. 1.669 km WSW of Unalaska, Alaska · 1997 days ago · 14 km deep · 70 km away
  13. 1.878 km SSE of Akutan, Alaska · 1999 days ago · 26 km deep · 88 km away
  14. 3.1Fox Islands, Aleutian Islands, Alaska · 2000 days ago · 20 km deep · 57 km away
  15. 1.887 km SSW of Unalaska, Alaska · 2000 days ago · 26 km deep · 32 km away
  16. 1.849 km SW of Unalaska, Alaska · 2002 days ago · 68 km deep · 49 km away
  17. 1.679 km SE of Unalaska, AK · 2004 days ago · 22 km deep · 62 km away
  18. 3.093 km WSW of Unalaska, Alaska · 2004 days ago · 71 km deep · 96 km away
  19. 3.366 km SE of Unalaska, Alaska · 2006 days ago · 35 km deep · 60 km away
  20. 2.870 km SSE of Akutan, Alaska · 2006 days ago · 47 km deep · 80 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0214tul4re. Read Sun, Sep 27, 2026, 4:51 PM UTC.