Alaska earthquakes

M1.7 earthquake 71 km SSW of Unalaska, Alaska

A magnitude 1.7 earthquake struck 71 km SSW of Unalaska, Alaska on Wed, Mar 24, 2021, 9:42 PM AKDT (05:42 UTC), 50 km (31 mi) below the surface.

A larger quake followed: M3.7 33 km SSW of Unalaska, 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
1.7 (ml), micro
Local time
UTC
2021-03-25 05:42:25 UTC
Depth
49.6 km (30.8 mi), shallow
Epicenter
53.263° N, 166.882° 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
20

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 45 in the 60 days after this one and 32 in the 30 days before it.

After

  1. 1.727 km S of Unalaska, Alaska · 2012 days ago · 89 km deep · 45 km away
  2. 2.938 km SSE of Unalaska, Alaska · 2011 days ago · 80 km deep · 50 km away
  3. 1.6104 km E of Nikolski, Alaska · 2011 days ago · 26 km deep · 46 km away
  4. 1.743 km W of Dutch Harbor, Alaska · 2009 days ago · 7 km deep · 66 km away
  5. 2.834 km SSE of Unalaska, Alaska · 2007 days ago · 70 km deep · 53 km away
  6. 2.077 km SSW of Unalaska, Alaska · 2006 days ago · 25 km deep · 11 km away
  7. 3.366 km SE of Unalaska, Alaska · 2006 days ago · 35 km deep · 79 km away
  8. 3.093 km WSW of Unalaska, Alaska · 2004 days ago · 71 km deep · 76 km away
  9. 1.679 km SE of Unalaska, AK · 2004 days ago · 22 km deep · 83 km away
  10. 1.849 km SW of Unalaska, Alaska · 2001 days ago · 68 km deep · 37 km away
  11. 1.953 km ESE of Nikolski, Alaska · 2001 days ago · 26 km deep · 100 km away
  12. 1.887 km SSW of Unalaska, Alaska · 2000 days ago · 26 km deep · 16 km away
  13. 3.1Fox Islands, Aleutian Islands, Alaska · 2000 days ago · 20 km deep · 78 km away
  14. 1.669 km WSW of Unalaska, Alaska · 1996 days ago · 14 km deep · 52 km away
  15. 1.570 km WSW of Unalaska, Alaska · 1996 days ago · 8 km deep · 55 km away
  16. 2.045 km SE of Unalaska, Alaska · 1995 days ago · 39 km deep · 63 km away
  17. 2.9Fox Islands, Aleutian Islands, Alaska · 1995 days ago · 52 km deep · 12 km away
  18. 2.058 km S of Akutan, Alaska · 1993 days ago · 82 km deep · 90 km away
  19. 1.879 km SE of Unalaska, Alaska · 1993 days ago · 16 km deep · 74 km away
  20. 1.969 km E of Nikolski, Alaska · 1993 days ago · 40 km deep · 70 km away
  21. 1.986 km SW of Unalaska, Alaska · 1991 days ago · 26 km deep · 33 km away
  22. 1.769 km S of Unalaska, Alaska · 1991 days ago · 21 km deep · 22 km away
  23. 2.6131 km S of Unalaska, Alaska · 1991 days ago · 4 km deep · 66 km away
  24. 3.0142 km ESE of Nikolski, Alaska · 1989 days ago · 6 km deep · 74 km away
  25. 1.663 km SSW of Unalaska, Alaska · 1989 days ago · 30 km deep · 12 km away
  26. 1.687 km SE of Unalaska, Alaska · 1989 days ago · 68 km deep · 86 km away
  27. 1.582 km SW of Unalaska, Alaska · 1988 days ago · 62 km deep · 27 km away
  28. 2.68 km WNW of Dutch Harbor, Alaska · 1987 days ago · 114 km deep · 73 km away
  29. 1.523 km W of Dutch Harbor, Alaska · 1986 days ago · 5 km deep · 69 km away
  30. 1.926 km ESE of Unalaska, Alaska · 1985 days ago · 74 km deep · 76 km away
  31. 2.169 km SE of Unalaska, Alaska · 1985 days ago · 23 km deep · 83 km away
  32. 3.286 km E of Nikolski, Alaska · 1984 days ago · 35 km deep · 61 km away
  33. 1.865 km SE of Unalaska, Alaska · 1982 days ago · 11 km deep · 73 km away
  34. 1.730 km SW of Unalaska, Alaska · 1981 days ago · 79 km deep · 43 km away
  35. 2.792 km ESE of Nikolski, Alaska · 1979 days ago · 26 km deep · 73 km away
  36. 1.731 km SE of Unalaska, Alaska · 1979 days ago · 43 km deep · 60 km away
  37. 2.6105 km S of Unalaska, Alaska · 1977 days ago · 32 km deep · 37 km away
  38. 3.6119 km E of Nikolski, Alaska · 1976 days ago · 51 km deep · 48 km away
  39. 2.088 km E of Nikolski, Alaska · 1971 days ago · 50 km deep · 69 km away
  40. 2.058 km SSE of Akutan, Alaska · 1971 days ago · 52 km deep · 100 km away
  41. 1.875 km S of Akutan, Alaska · 1971 days ago · 22 km deep · 91 km away
  42. 1.57 km N of Dutch Harbor, Alaska · 1969 days ago · 10 km deep · 81 km away
  43. 1.972 km SSE of Unalaska, Alaska · 1962 days ago · 20 km deep · 56 km away
  44. 2.746 km ESE of Nikolski, Alaska · 1956 days ago · 24 km deep · 98 km away
  45. 3.733 km SSW of Unalaska, Alaska · 1955 days ago · 77 km deep · 40 km away

Before

  1. 1.8107 km E of Nikolski, Alaska · 2012 days ago · 16 km deep · 45 km away
  2. 2.3124 km S of Unalaska, Alaska · 2012 days ago · 5 km deep · 54 km away
  3. 2.880 km SE of Unalaska, Alaska · 2015 days ago · 35 km deep · 78 km away
  4. 2.266 km SE of Unalaska, Alaska · 2015 days ago · 48 km deep · 76 km away
  5. 2.070 km SE of Unalaska, Alaska · 2015 days ago · 15 km deep · 77 km away
  6. 3.077 km SE of Unalaska, Alaska · 2015 days ago · 27 km deep · 77 km away
  7. 1.825 km SSW of Unalaska, Alaska · 2015 days ago · 70 km deep · 47 km away
  8. 1.988 km ENE of Nikolski, Alaska · 2017 days ago · 55 km deep · 48 km away
  9. 3.278 km S of Unalaska, Alaska · 2019 days ago · 25 km deep · 17 km away
  10. 1.561 km ESE of Unalaska, Alaska · 2019 days ago · 25 km deep · 83 km away
  11. 1.574 km S of Unalaska, Alaska · 2019 days ago · 45 km deep · 15 km away
  12. 1.666 km SW of Unalaska, Alaska · 2020 days ago · 13 km deep · 40 km away
  13. 1.869 km SE of Unalaska, Alaska · 2020 days ago · 43 km deep · 76 km away
  14. 1.986 km SSW of Unalaska, Alaska · 2020 days ago · 26 km deep · 16 km away
  15. 1.979 km S of Unalaska, Alaska · 2020 days ago · 22 km deep · 16 km away
  16. 2.636 km SE of Unalaska, Alaska · 2022 days ago · 41 km deep · 65 km away
  17. 3.148 km S of Unalaska, Alaska · 2022 days ago · 67 km deep · 25 km away
  18. 1.956 km SE of Unalaska, Alaska · 2023 days ago · 25 km deep · 71 km away
  19. 2.750 km S of Akutan, Alaska · 2023 days ago · 62 km deep · 87 km away
  20. 2.1146 km ESE of Nikolski, Alaska · 2024 days ago · 26 km deep · 83 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0213v0ddl1. Read Sun, Sep 27, 2026, 1:48 AM UTC.