Alaska earthquakes

M1.8 earthquake 76 km SSW of Unalaska, Alaska

A magnitude 1.8 earthquake struck 76 km SSW of Unalaska, Alaska on Sun, Mar 31, 2024, 1:40 PM AKDT (21:40 UTC), 34 km (21 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
1.8 (ml), micro
Local time
UTC
2024-03-31 21:40:45 UTC
Depth
34.1 km (21.2 mi), shallow
Epicenter
53.219° N, 166.892° 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
15

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 129 in the 60 days after this one and 71 in the 30 days before it.

After

  1. 1.847 km ESE of Unalaska, Alaska · 911 days ago · 35 km deep · 86 km away
  2. 2.3108 km ESE of Nikolski, Alaska · 910 days ago · 46 km deep · 63 km away
  3. 1.8102 km SSW of Unalaska, Alaska · 910 days ago · 26 km deep · 26 km away
  4. 2.186 km ENE of Nikolski, Alaska · 910 days ago · 55 km deep · 50 km away
  5. 2.0124 km SSW of Unalaska, Alaska · 910 days ago · 11 km deep · 48 km away
  6. 2.067 km SW of Unalaska, Alaska · 909 days ago · 60 km deep · 47 km away
  7. 1.880 km SSW of Unalaska, Alaska · 909 days ago · 26 km deep · 12 km away
  8. 1.970 km WSW of Dutch Harbor, Alaska · 909 days ago · 40 km deep · 69 km away
  9. 1.9102 km SSW of Unalaska, Alaska · 908 days ago · 9 km deep · 32 km away
  10. 2.913 km ESE of Unalaska, Alaska · 908 days ago · 83 km deep · 76 km away
  11. 2.167 km SE of Unalaska, Alaska · 908 days ago · 28 km deep · 76 km away
  12. 4.473 km SW of Unalaska, Alaska · 907 days ago · 93 km deep · 48 km away · felt by 5
  13. 3.777 km SW of Unalaska, Alaska · 907 days ago · 87 km deep · 32 km away · felt by 1
  14. 2.083 km ESE of Nikolski, Alaska · 906 days ago · 26 km deep · 96 km away
  15. 1.933 km SSW of Unalaska, Alaska · 905 days ago · 78 km deep · 43 km away
  16. 2.023 km S of Unalaska, Alaska · 905 days ago · 75 km deep · 56 km away
  17. 4.186 km E of Nikolski, Alaska · 904 days ago · 50 km deep · 54 km away
  18. 2.083 km E of Nikolski, Alaska · 904 days ago · 56 km deep · 55 km away
  19. 2.088 km E of Nikolski, Alaska · 904 days ago · 52 km deep · 51 km away
  20. 2.2109 km SSE of Unalaska, Alaska · 904 days ago · 19 km deep · 85 km away
  21. 2.061 km SSE of Unalaska, Alaska · 904 days ago · 44 km deep · 53 km away
  22. 1.986 km SSW of Unalaska, Alaska · 904 days ago · 38 km deep · 11 km away
  23. 2.294 km SE of Unalaska, Alaska · 903 days ago · 26 km deep · 84 km away
  24. 4.687 km SSW of Unalaska, Alaska · 902 days ago · 35 km deep · 15 km away · felt by 1
  25. 2.245 km ESE of Unalaska, Alaska · 901 days ago · 27 km deep · 85 km away
  26. 2.085 km ENE of Nikolski, Alaska · 901 days ago · 57 km deep · 50 km away
  27. 3.164 km WSW of Dutch Harbor, Alaska · 899 days ago · 106 km deep · 69 km away
  28. 1.913 km E of Unalaska, Alaska · 899 days ago · 75 km deep · 80 km away
  29. 1.671 km S of Unalaska, Alaska · 898 days ago · 31 km deep · 22 km away
  30. 1.679 km WSW of Unalaska, Alaska · 898 days ago · 13 km deep · 55 km away
  31. 3.685 km SSW of Unalaska, Alaska · 898 days ago · 36 km deep · 13 km away
  32. 1.675 km SW of Unalaska, Alaska · 898 days ago · 13 km deep · 43 km away
  33. 1.72 km WSW of Dutch Harbor, Alaska · 898 days ago · 121 km deep · 76 km away
  34. 1.549 km SW of Unalaska, Alaska · 897 days ago · 16 km deep · 36 km away
  35. 1.973 km S of Unalaska, Alaska · 897 days ago · 26 km deep · 32 km away
  36. 2.967 km SSE of Unalaska, Alaska · 896 days ago · 35 km deep · 56 km away
  37. 2.656 km SSW of Unalaska, Alaska · 896 days ago · 85 km deep · 20 km away
  38. 2.073 km SW of Unalaska, Alaska · 896 days ago · 73 km deep · 39 km away
  39. 2.082 km SSW of Unalaska, Alaska · 896 days ago · 26 km deep · 9 km away
  40. 2.056 km WSW of Unalaska, Alaska · 895 days ago · 16 km deep · 51 km away
  41. 1.829 km ESE of Unalaska, Alaska · 895 days ago · 28 km deep · 76 km away
  42. 2.171 km SE of Unalaska, Alaska · 894 days ago · 26 km deep · 83 km away
  43. 3.2123 km ESE of Nikolski, Alaska · 893 days ago · 35 km deep · 56 km away
  44. 3.0139 km ESE of Nikolski, Alaska · 893 days ago · 11 km deep · 76 km away
  45. 1.758 km WSW of Unalaska, Alaska · 892 days ago · 15 km deep · 52 km away
  46. 2.184 km SE of Unalaska, Alaska · 892 days ago · 24 km deep · 78 km away
  47. 1.799 km ESE of Nikolski, Alaska · 891 days ago · 25 km deep · 67 km away
  48. 2.245 km E of Nikolski, Alaska · 891 days ago · 43 km deep · 96 km away
  49. 1.988 km E of Nikolski, Alaska · 890 days ago · 20 km deep · 62 km away
  50. 2.887 km SSW of Unalaska, Alaska · 888 days ago · 35 km deep · 13 km away
  51. 2.257 km E of Nikolski, Alaska · 887 days ago · 71 km deep · 85 km away
  52. 1.765 km SE of Unalaska, Alaska · 887 days ago · 21 km deep · 65 km away
  53. 3.1140 km ESE of Nikolski, Alaska · 887 days ago · 10 km deep · 82 km away
  54. 1.859 km ENE of Nikolski, Alaska · 886 days ago · 67 km deep · 77 km away
  55. 1.997 km E of Nikolski, Alaska · 886 days ago · 37 km deep · 45 km away
  56. 1.654 km SE of Unalaska, Alaska · 886 days ago · 49 km deep · 64 km away
  57. 2.033 km SSW of Unalaska, Alaska · 885 days ago · 78 km deep · 43 km away
  58. 3.148 km SSE of Unalaska, Alaska · 885 days ago · 81 km deep · 59 km away
  59. 2.163 km SW of Unalaska, Alaska · 884 days ago · 46 km deep · 27 km away
  60. 3.280 km S of Unalaska, Alaska · 884 days ago · 35 km deep · 15 km away

The first 60 of 129.

Before

  1. 1.978 km SSW of Unalaska, Alaska · 912 days ago · 34 km deep · 6 km away
  2. 2.967 km SE of Unalaska, Alaska · 912 days ago · 35 km deep · 68 km away
  3. 1.790 km WSW of Unalaska, Alaska · 912 days ago · 57 km deep · 62 km away
  4. 2.679 km S of Unalaska, Alaska · 912 days ago · 35 km deep · 17 km away
  5. 2.085 km SSW of Unalaska, Alaska · 912 days ago · 49 km deep · 19 km away
  6. 2.257 km SW of Unalaska, Alaska · 913 days ago · 16 km deep · 44 km away
  7. 1.950 km SSW of Unalaska, Alaska · 913 days ago · 72 km deep · 31 km away
  8. 2.174 km S of Unalaska, Alaska · 914 days ago · 23 km deep · 12 km away
  9. 2.6104 km E of Nikolski, Alaska · 915 days ago · 35 km deep · 48 km away
  10. 1.946 km SW of Unalaska, Alaska · 915 days ago · 68 km deep · 41 km away
  11. 1.916 km WSW of Unalaska, Alaska · 916 days ago · 75 km deep · 67 km away
  12. 1.854 km SE of Unalaska, Alaska · 916 days ago · 58 km deep · 73 km away
  13. 1.528 km ESE of Unalaska, Alaska · 917 days ago · 36 km deep · 79 km away
  14. 1.746 km SSW of Unalaska, Alaska · 917 days ago · 67 km deep · 32 km away
  15. 2.174 km S of Unalaska, Alaska · 917 days ago · 24 km deep · 12 km away
  16. 2.4146 km S of Unalaska, Alaska · 918 days ago · 30 km deep · 76 km away
  17. 1.851 km S of Akutan, Alaska · 919 days ago · 50 km deep · 92 km away
  18. 2.081 km SSW of Unalaska, Alaska · 919 days ago · 37 km deep · 5 km away
  19. 3.252 km WSW of Unalaska, Alaska · 919 days ago · 107 km deep · 62 km away
  20. 3.5124 km S of Unalaska, Alaska · 921 days ago · 5 km deep · 54 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak02446uncs3. Read Tue, Sep 29, 2026, 12:40 AM UTC.