Alaska earthquakes

M2.4 earthquake 136 km S of Unalaska, Alaska

A magnitude 2.4 earthquake struck 136 km S of Unalaska, Alaska on Mon, Mar 8, 2021, 1:31 AM AKST (10:31 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M3.6 119 km E of Nikolski, 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
2.4 (ml), micro
Local time
UTC
2021-03-08 10:31:58 UTC
Depth
5.0 km (3.1 mi), shallow
Epicenter
52.657° N, 166.841° 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
22

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 40 in the 60 days after this one and 24 in the 30 days before it.

After

  1. 2.9102 km SSW of Unalaska, Alaska · 2030 days ago · 35 km deep · 35 km away
  2. 2.1146 km ESE of Nikolski, Alaska · 2026 days ago · 26 km deep · 16 km away
  3. 3.148 km S of Unalaska, Alaska · 2024 days ago · 67 km deep · 89 km away
  4. 3.259 km ESE of Nikolski, Alaska · 2022 days ago · 28 km deep · 84 km away
  5. 1.979 km S of Unalaska, Alaska · 2022 days ago · 22 km deep · 57 km away
  6. 1.986 km SSW of Unalaska, Alaska · 2022 days ago · 26 km deep · 57 km away
  7. 1.666 km SW of Unalaska, Alaska · 2022 days ago · 13 km deep · 100 km away
  8. 1.574 km S of Unalaska, Alaska · 2021 days ago · 45 km deep · 63 km away
  9. 3.278 km S of Unalaska, Alaska · 2021 days ago · 25 km deep · 59 km away
  10. 1.988 km ENE of Nikolski, Alaska · 2019 days ago · 55 km deep · 74 km away
  11. 2.3124 km S of Unalaska, Alaska · 2014 days ago · 5 km deep · 13 km away
  12. 3.080 km SE of Nikolski, Alaska · 2014 days ago · 35 km deep · 92 km away
  13. 1.8107 km E of Nikolski, Alaska · 2014 days ago · 16 km deep · 41 km away
  14. 1.771 km SSW of Unalaska, Alaska · 2014 days ago · 50 km deep · 67 km away
  15. 1.6104 km E of Nikolski, Alaska · 2013 days ago · 26 km deep · 43 km away
  16. 2.548 km ESE of Nikolski, Alaska · 2011 days ago · 35 km deep · 92 km away
  17. 2.077 km SSW of Unalaska, Alaska · 2008 days ago · 25 km deep · 60 km away
  18. 3.446 km ESE of Nikolski, Alaska · 2005 days ago · 35 km deep · 95 km away
  19. 1.953 km ESE of Nikolski, Alaska · 2003 days ago · 26 km deep · 87 km away
  20. 1.887 km SSW of Unalaska, Alaska · 2002 days ago · 26 km deep · 54 km away
  21. 2.244 km ESE of Nikolski, Alaska · 2000 days ago · 55 km deep · 96 km away
  22. 3.191 km SE of Nikolski, Alaska · 1997 days ago · 12 km deep · 77 km away
  23. 2.9Fox Islands, Aleutian Islands, Alaska · 1997 days ago · 52 km deep · 68 km away
  24. 1.969 km E of Nikolski, Alaska · 1995 days ago · 40 km deep · 76 km away
  25. 1.986 km SW of Unalaska, Alaska · 1993 days ago · 26 km deep · 79 km away
  26. 1.769 km S of Unalaska, Alaska · 1993 days ago · 21 km deep · 69 km away
  27. 2.6131 km S of Unalaska, Alaska · 1992 days ago · 4 km deep · 15 km away
  28. 3.0142 km ESE of Nikolski, Alaska · 1991 days ago · 6 km deep · 7 km away
  29. 1.663 km SSW of Unalaska, Alaska · 1991 days ago · 30 km deep · 79 km away
  30. 1.582 km SW of Unalaska, Alaska · 1990 days ago · 62 km deep · 76 km away
  31. 1.755 km ESE of Nikolski, Alaska · 1990 days ago · 26 km deep · 88 km away
  32. 2.865 km SE of Nikolski, Alaska · 1988 days ago · 35 km deep · 83 km away
  33. 3.286 km E of Nikolski, Alaska · 1986 days ago · 35 km deep · 57 km away
  34. 2.869 km SE of Nikolski, Alaska · 1981 days ago · 22 km deep · 79 km away
  35. 2.792 km ESE of Nikolski, Alaska · 1981 days ago · 26 km deep · 48 km away
  36. 2.6105 km S of Unalaska, Alaska · 1979 days ago · 32 km deep · 31 km away
  37. 3.6119 km E of Nikolski, Alaska · 1978 days ago · 51 km deep · 27 km away
  38. 3.4188 km SE of Nikolski, Alaska · 1976 days ago · 12 km deep · 96 km away
  39. 2.088 km E of Nikolski, Alaska · 1973 days ago · 50 km deep · 51 km away
  40. 3.653 km ESE of Nikolski, Alaska · 1972 days ago · 35 km deep · 92 km away

Before

  1. 3.746 km ESE of Nikolski, Alaska · 2031 days ago · 44 km deep · 93 km away
  2. 2.167 km ESE of Nikolski, Alaska · 2038 days ago · 16 km deep · 73 km away
  3. 3.5206 km ESE of Nikolski, Alaska · 2039 days ago · 10 km deep · 86 km away
  4. 3.279 km SSW of Unalaska, Alaska · 2039 days ago · 10 km deep · 68 km away
  5. 2.8140 km S of Unalaska, Alaska · 2042 days ago · 10 km deep · 20 km away
  6. 3.1133 km S of Unalaska, Alaska · 2043 days ago · 29 km deep · 7 km away
  7. 2.7Fox Islands, Aleutian Islands, Alaska · 2043 days ago · 20 km deep · 7 km away
  8. 2.1135 km S of Unalaska, Alaska · 2043 days ago · 37 km deep · 10 km away
  9. 2.1118 km S of Unalaska, Alaska · 2043 days ago · 6 km deep · 19 km away
  10. 4.0186 km SSE of Unalaska, Alaska · 2043 days ago · 10 km deep · 82 km away
  11. 3.374 km SSW of Unalaska, Alaska · 2043 days ago · 35 km deep · 63 km away
  12. 1.984 km S of Unalaska, Alaska · 2044 days ago · 5 km deep · 54 km away
  13. 1.584 km SW of Unalaska, Alaska · 2046 days ago · 14 km deep · 73 km away
  14. 3.0135 km SSE of Unalaska, Alaska · 2048 days ago · 10 km deep · 94 km away
  15. 1.885 km E of Nikolski, Alaska · 2054 days ago · 10 km deep · 59 km away
  16. 1.861 km SSE of Unalaska, Alaska · 2055 days ago · 29 km deep · 98 km away
  17. 3.245 km SE of Nikolski, Alaska · 2056 days ago · 35 km deep · 99 km away
  18. 3.2108 km ESE of Nikolski, Alaska · 2057 days ago · 17 km deep · 46 km away
  19. 1.677 km SW of Unalaska, Alaska · 2057 days ago · 13 km deep · 88 km away
  20. 1.688 km SSW of Unalaska, Alaska · 2057 days ago · 26 km deep · 54 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak02132z5gj7. Read Mon, Sep 28, 2026, 11:38 PM UTC.