Alaska earthquakes

M3.7 earthquake 93 km SW of Adak, Alaska

A magnitude 3.7 earthquake struck 93 km SW of Adak, Alaska on Mon, Mar 18, 2024, 11:28 PM HADT (08:28 UTC), 54 km (33 mi) below the surface.

A larger quake followed: M4.5 188 km WSW of Adak, Alaska. This one was a foreshock.

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

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The earthquake

Magnitude
3.7 (mb, body-wave), minor
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2024-03-19 08:28:54 UTC
Depth
53.7 km (33.3 mi), shallow
Epicenter
51.371° N, 177.717° W
Region
Alaska
Tsunami flag
No
Status
Reviewed by a seismologist

Magnitude estimates

Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.

Mag.ScaleComputed byNotes
3.7mb, body-waveUSGS National Earthquake Information CenterPreferred · Reviewed · ±0.116 · 19 stations
3.5ML, local (Richter)Alaska Earthquake CenterPreliminary

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 6.2 km horizontally, 9.5 km in depth
Magnitude uncertainty
±0.12
Depth from
From location
Station coverage gap
198°, poorly surrounded by stations
Stations used
45

Nearby

Within 100 km, magnitude 1.5 and up: at least 201 in the 60 days after this one and 94 in the 30 days before it.

After

  1. 1.8135 km WSW of Adak, Alaska · 926 days ago · 18 km deep · 65 km away
  2. 2.5152 km W of Adak, Alaska · 925 days ago · 96 km deep · 97 km away
  3. 2.2160 km WSW of Adak, Alaska · 925 days ago · 20 km deep · 86 km away
  4. 2.2149 km WSW of Adak, Alaska · 925 days ago · 17 km deep · 64 km away
  5. 2.751 km SSW of Adak, Alaska · 925 days ago · 35 km deep · 64 km away
  6. 1.947 km SW of Adak, Alaska · 925 days ago · 43 km deep · 49 km away
  7. 1.857 km SSW of Adak, Alaska · 925 days ago · 33 km deep · 48 km away
  8. 2.759 km S of Adak, Alaska · 924 days ago · 35 km deep · 64 km away
  9. 1.8113 km WSW of Adak, Alaska · 924 days ago · 26 km deep · 42 km away
  10. 1.761 km SSW of Adak, Alaska · 924 days ago · 28 km deep · 62 km away
  11. 2.743 km S of Adak, Alaska · 923 days ago · 37 km deep · 75 km away
  12. 2.5180 km WSW of Adak, Alaska · 922 days ago · 30 km deep · 91 km away
  13. 1.970 km SW of Adak, Alaska · 922 days ago · 38 km deep · 23 km away
  14. 1.971 km WSW of Adak, Alaska · 921 days ago · 48 km deep · 24 km away
  15. 1.810 km SE of Adak, Alaska · 921 days ago · 72 km deep · 96 km away
  16. 1.860 km SW of Adak, Alaska · 920 days ago · 13 km deep · 33 km away
  17. 2.964 km SSW of Adak, Alaska · 920 days ago · 35 km deep · 49 km away
  18. 1.674 km WSW of Adak, Alaska · 919 days ago · 25 km deep · 20 km away
  19. 1.676 km SW of Adak, Alaska · 918 days ago · 34 km deep · 18 km away
  20. 1.8167 km WSW of Adak, Alaska · 918 days ago · 21 km deep · 80 km away
  21. 1.7141 km WSW of Adak, Alaska · 918 days ago · 12 km deep · 62 km away
  22. 2.0181 km WSW of Adak, Alaska · 918 days ago · 22 km deep · 99 km away
  23. 2.1153 km WSW of Adak, Alaska · 918 days ago · 50 km deep · 61 km away
  24. 3.6157 km WSW of Adak, Alaska · 917 days ago · 35 km deep · 65 km away
  25. 2.2169 km WSW of Adak, Alaska · 917 days ago · 32 km deep · 89 km away
  26. 1.759 km W of Adak, Alaska · 916 days ago · -2 km deep · 49 km away
  27. 2.169 km SSW of Adak, Alaska · 916 days ago · 26 km deep · 46 km away
  28. 2.8148 km WSW of Adak, Alaska · 916 days ago · 33 km deep · 56 km away
  29. 1.859 km WSW of Adak, Alaska · 916 days ago · 3 km deep · 46 km away
  30. 3.125 km S of Adak, Alaska · 916 days ago · 57 km deep · 83 km away
  31. 2.040 km WSW of Adak, Alaska · 916 days ago · 84 km deep · 59 km away
  32. 2.753 km S of Adak, Alaska · 916 days ago · 35 km deep · 83 km away
  33. 1.849 km S of Adak, Alaska · 916 days ago · 29 km deep · 82 km away
  34. 1.814 km S of Adak, Alaska · 915 days ago · 65 km deep · 84 km away
  35. 1.931 km S of Adak, Alaska · 915 days ago · 44 km deep · 77 km away
  36. 2.7119 km SW of Adak, Alaska · 915 days ago · 35 km deep · 27 km away
  37. 2.160 km S of Adak, Alaska · 914 days ago · 24 km deep · 84 km away
  38. 2.8121 km SW of Adak, Alaska · 914 days ago · 35 km deep · 28 km away
  39. 1.9110 km WSW of Adak, Alaska · 913 days ago · 13 km deep · 30 km away
  40. 1.894 km SW of Adak, Alaska · 913 days ago · 24 km deep · 4 km away
  41. 2.339 km WNW of Adak, Alaska · 913 days ago · 95 km deep · 77 km away
  42. 2.2131 km SW of Adak, Alaska · 913 days ago · 22 km deep · 38 km away
  43. 3.770 km WSW of Adak, Alaska · 913 days ago · 124 km deep · 42 km away
  44. 3.6184 km WSW of Adak, Alaska · 913 days ago · 26 km deep · 97 km away
  45. 3.1121 km W of Adak, Alaska · 913 days ago · 155 km deep · 83 km away
  46. 3.4135 km WSW of Adak, Alaska · 912 days ago · 35 km deep · 44 km away
  47. 2.1127 km WSW of Adak, Alaska · 912 days ago · 15 km deep · 44 km away
  48. 2.8170 km SW of Adak, Alaska · 911 days ago · 10 km deep · 85 km away
  49. 2.067 km SW of Adak, Alaska · 911 days ago · 26 km deep · 30 km away
  50. 2.2100 km WSW of Adak, Alaska · 911 days ago · 13 km deep · 27 km away
  51. 2.251 km W of Adak, Alaska · 910 days ago · 91 km deep · 64 km away
  52. 2.045 km S of Adak, Alaska · 910 days ago · 43 km deep · 81 km away
  53. 2.1126 km WSW of Adak, Alaska · 910 days ago · 19 km deep · 39 km away
  54. 3.5113 km SW of Adak, Alaska · 909 days ago · 35 km deep · 22 km away
  55. 2.8114 km SW of Adak, Alaska · 909 days ago · 31 km deep · 22 km away
  56. 3.0125 km WSW of Adak, Alaska · 907 days ago · 38 km deep · 38 km away
  57. 3.1102 km SW of Adak, Alaska · 907 days ago · 35 km deep · 17 km away
  58. 2.0102 km WSW of Adak, Alaska · 906 days ago · 26 km deep · 33 km away
  59. 1.954 km SW of Adak, Alaska · 906 days ago · 58 km deep · 39 km away
  60. 2.1116 km SW of Adak, Alaska · 906 days ago · 26 km deep · 31 km away

The first 60 of at least 201.

Before

  1. 2.7174 km WSW of Adak, Alaska · 926 days ago · 25 km deep · 90 km away
  2. 1.7153 km W of Adak, Alaska · 926 days ago · 16 km deep · 82 km away
  3. 3.4126 km WSW of Adak, Alaska · 926 days ago · 35 km deep · 38 km away
  4. 2.684 km W of Adak, Alaska · 927 days ago · 100 km deep · 49 km away
  5. 2.8171 km WSW of Adak, Alaska · 927 days ago · 32 km deep · 87 km away
  6. 1.662 km W of Adak, Alaska · 928 days ago · 13 km deep · 49 km away
  7. 2.0125 km WSW of Adak, Alaska · 928 days ago · 7 km deep · 49 km away
  8. 2.0125 km WSW of Adak, Alaska · 928 days ago · 25 km deep · 41 km away
  9. 1.866 km WSW of Adak, Alaska · 929 days ago · 47 km deep · 28 km away
  10. 2.2150 km WSW of Adak, Alaska · 929 days ago · 18 km deep · 59 km away
  11. 1.855 km SSW of Adak, Alaska · 929 days ago · 37 km deep · 45 km away
  12. 1.824 km SSW of Adak, Alaska · 929 days ago · 50 km deep · 72 km away
  13. 1.716 km WNW of Adak, Alaska · 930 days ago · 13 km deep · 85 km away
  14. 2.066 km S of Adak, Alaska · 930 days ago · 26 km deep · 67 km away
  15. 2.2123 km WSW of Adak, Alaska · 930 days ago · 25 km deep · 39 km away
  16. 2.9133 km SW of Adak, Alaska · 931 days ago · 14 km deep · 40 km away
  17. 2.057 km S of Adak, Alaska · 931 days ago · 23 km deep · 79 km away
  18. 1.959 km WSW of Adak, Alaska · 931 days ago · 19 km deep · 35 km away
  19. 1.8110 km WSW of Adak, Alaska · 931 days ago · 21 km deep · 31 km away
  20. 1.8113 km WSW of Adak, Alaska · 931 days ago · 25 km deep · 36 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000mkj3 (also filed as ak0243mse03m). Read Thu, Oct 1, 2026, 2:54 PM UTC.