Alaska earthquakes

M3.5 earthquake 124 km S of Unalaska, Alaska

A magnitude 3.5 earthquake struck 124 km S of Unalaska, Alaska on Fri, Mar 22, 2024, 12:14 AM AKDT (08:14 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M4.6 87 km SSW 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
3.5 (ml), minor
Local time
UTC
2024-03-22 08:14:55 UTC
Depth
5.3 km (3.3 mi), shallow
Epicenter
52.756° N, 166.668° 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 4.6 km horizontally, 9.6 km in depth
Magnitude uncertainty
±0.10
Depth from
From location
Station coverage gap
214°, poorly surrounded by stations
Stations used
29

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 106 in the 60 days after this one and 55 in the 30 days before it.

After

  1. 2.081 km SSW of Unalaska, Alaska · 920 days ago · 37 km deep · 49 km away
  2. 2.4146 km S of Unalaska, Alaska · 919 days ago · 30 km deep · 22 km away
  3. 2.8181 km SSE of Unalaska, Alaska · 918 days ago · 10 km deep · 72 km away
  4. 2.174 km S of Unalaska, Alaska · 918 days ago · 24 km deep · 51 km away
  5. 1.746 km SSW of Unalaska, Alaska · 918 days ago · 67 km deep · 84 km away
  6. 1.854 km SE of Unalaska, Alaska · 917 days ago · 58 km deep · 100 km away
  7. 1.946 km SW of Unalaska, Alaska · 916 days ago · 68 km deep · 94 km away
  8. 2.6104 km E of Nikolski, Alaska · 916 days ago · 35 km deep · 45 km away
  9. 2.174 km S of Unalaska, Alaska · 914 days ago · 23 km deep · 51 km away
  10. 1.950 km SSW of Unalaska, Alaska · 914 days ago · 72 km deep · 84 km away
  11. 2.257 km SW of Unalaska, Alaska · 914 days ago · 16 km deep · 97 km away
  12. 2.085 km SSW of Unalaska, Alaska · 913 days ago · 49 km deep · 61 km away
  13. 2.679 km S of Unalaska, Alaska · 913 days ago · 35 km deep · 45 km away
  14. 2.967 km SE of Unalaska, Alaska · 913 days ago · 35 km deep · 88 km away
  15. 1.978 km SSW of Unalaska, Alaska · 913 days ago · 34 km deep · 49 km away
  16. 1.876 km SSW of Unalaska, Alaska · 912 days ago · 34 km deep · 54 km away
  17. 2.3108 km ESE of Nikolski, Alaska · 911 days ago · 46 km deep · 42 km away
  18. 1.8102 km SSW of Unalaska, Alaska · 911 days ago · 26 km deep · 32 km away
  19. 2.186 km ENE of Nikolski, Alaska · 911 days ago · 55 km deep · 80 km away
  20. 2.0124 km SSW of Unalaska, Alaska · 911 days ago · 11 km deep · 25 km away
  21. 2.067 km SW of Unalaska, Alaska · 910 days ago · 60 km deep · 98 km away
  22. 1.880 km SSW of Unalaska, Alaska · 910 days ago · 26 km deep · 58 km away
  23. 1.9102 km SSW of Unalaska, Alaska · 909 days ago · 9 km deep · 56 km away
  24. 2.167 km SE of Unalaska, Alaska · 909 days ago · 28 km deep · 96 km away
  25. 4.473 km SW of Unalaska, Alaska · 908 days ago · 93 km deep · 98 km away · felt by 5
  26. 3.777 km SW of Unalaska, Alaska · 908 days ago · 87 km deep · 80 km away · felt by 1
  27. 2.083 km ESE of Nikolski, Alaska · 907 days ago · 26 km deep · 80 km away
  28. 1.933 km SSW of Unalaska, Alaska · 906 days ago · 78 km deep · 93 km away
  29. 4.186 km E of Nikolski, Alaska · 905 days ago · 50 km deep · 65 km away
  30. 2.083 km E of Nikolski, Alaska · 905 days ago · 56 km deep · 68 km away
  31. 2.088 km E of Nikolski, Alaska · 905 days ago · 52 km deep · 63 km away
  32. 2.2109 km SSE of Unalaska, Alaska · 905 days ago · 19 km deep · 75 km away
  33. 2.061 km SSE of Unalaska, Alaska · 905 days ago · 44 km deep · 78 km away
  34. 1.986 km SSW of Unalaska, Alaska · 904 days ago · 38 km deep · 51 km away
  35. 2.294 km SE of Unalaska, Alaska · 904 days ago · 26 km deep · 86 km away
  36. 4.687 km SSW of Unalaska, Alaska · 903 days ago · 35 km deep · 39 km away · felt by 1
  37. 2.085 km ENE of Nikolski, Alaska · 902 days ago · 57 km deep · 77 km away
  38. 1.671 km S of Unalaska, Alaska · 899 days ago · 31 km deep · 53 km away
  39. 3.685 km SSW of Unalaska, Alaska · 899 days ago · 36 km deep · 41 km away
  40. 1.675 km SW of Unalaska, Alaska · 899 days ago · 13 km deep · 92 km away
  41. 1.549 km SW of Unalaska, Alaska · 898 days ago · 16 km deep · 90 km away
  42. 1.973 km S of Unalaska, Alaska · 898 days ago · 26 km deep · 54 km away
  43. 2.967 km SSE of Unalaska, Alaska · 897 days ago · 35 km deep · 75 km away
  44. 2.656 km SSW of Unalaska, Alaska · 897 days ago · 85 km deep · 71 km away
  45. 2.073 km SW of Unalaska, Alaska · 897 days ago · 73 km deep · 88 km away
  46. 2.082 km SSW of Unalaska, Alaska · 897 days ago · 26 km deep · 45 km away
  47. 4.2165 km S of Unalaska, Alaska · 896 days ago · 17 km deep · 51 km away
  48. 3.4169 km S of Unalaska, Alaska · 896 days ago · 10 km deep · 55 km away
  49. 3.2123 km ESE of Nikolski, Alaska · 894 days ago · 35 km deep · 27 km away
  50. 3.0139 km ESE of Nikolski, Alaska · 894 days ago · 11 km deep · 30 km away
  51. 2.184 km SE of Unalaska, Alaska · 893 days ago · 24 km deep · 86 km away
  52. 1.799 km ESE of Nikolski, Alaska · 892 days ago · 25 km deep · 52 km away
  53. 2.3200 km SSE of Unalaska, Alaska · 891 days ago · 7 km deep · 98 km away
  54. 1.988 km E of Nikolski, Alaska · 891 days ago · 20 km deep · 61 km away
  55. 2.1141 km ESE of Nikolski, Alaska · 891 days ago · 24 km deep · 62 km away
  56. 2.887 km SSW of Unalaska, Alaska · 889 days ago · 35 km deep · 41 km away
  57. 2.257 km E of Nikolski, Alaska · 888 days ago · 71 km deep · 91 km away
  58. 1.765 km SE of Unalaska, Alaska · 888 days ago · 21 km deep · 86 km away
  59. 3.1140 km ESE of Nikolski, Alaska · 888 days ago · 10 km deep · 35 km away
  60. 1.997 km E of Nikolski, Alaska · 887 days ago · 37 km deep · 55 km away

The first 60 of 106.

Before

  1. 3.3137 km ESE of Nikolski, Alaska · 922 days ago · 10 km deep · 23 km away
  2. 2.138 km SSW of Unalaska, Alaska · 922 days ago · 104 km deep · 90 km away
  3. 1.973 km SSW of Unalaska, Alaska · 922 days ago · 48 km deep · 70 km away
  4. 2.0100 km E of Nikolski, Alaska · 924 days ago · 48 km deep · 53 km away
  5. 3.695 km SSW of Unalaska, Alaska · 925 days ago · 47 km deep · 50 km away
  6. 2.034 km SSW of Unalaska, Alaska · 925 days ago · 67 km deep · 92 km away
  7. 2.594 km E of Nikolski, Alaska · 926 days ago · 35 km deep · 63 km away
  8. 2.982 km SSW of Unalaska, Alaska · 926 days ago · 35 km deep · 45 km away
  9. 1.992 km SW of Unalaska, Alaska · 926 days ago · 62 km deep · 80 km away
  10. 1.9118 km S of Unalaska, Alaska · 926 days ago · 2 km deep · 7 km away
  11. 1.9121 km S of Unalaska, Alaska · 926 days ago · 7 km deep · 4 km away
  12. 3.999 km S of Unalaska, Alaska · 926 days ago · 43 km deep · 27 km away
  13. 2.1131 km S of Unalaska, Alaska · 927 days ago · 7 km deep · 8 km away
  14. 2.0117 km S of Unalaska, Alaska · 927 days ago · 1 km deep · 7 km away
  15. 2.1145 km S of Unalaska, Alaska · 927 days ago · 25 km deep · 24 km away
  16. 4.292 km ENE of Nikolski, Alaska · 927 days ago · 59 km deep · 76 km away · felt by 1
  17. 1.873 km SSW of Unalaska, Alaska · 928 days ago · 45 km deep · 55 km away
  18. 1.9138 km ESE of Nikolski, Alaska · 929 days ago · 5 km deep · 23 km away
  19. 1.979 km ENE of Nikolski, Alaska · 929 days ago · 70 km deep · 88 km away
  20. 2.0125 km S of Unalaska, Alaska · 929 days ago · 14 km deep · 1 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000mbei (also filed as ak0243rqx58c). Read Tue, Sep 29, 2026, 10:41 PM UTC.