Alaska earthquakes

M3.3 earthquake 108 km ESE of Adak, Alaska

A magnitude 3.3 earthquake struck 108 km ESE of Adak, Alaska on Thu, Dec 21, 2023, 5:08 AM HAST (15:08 UTC), 34 km (21 mi) below the surface.

A larger quake followed: M4.9 124 km SSW of Atka, 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
3.3 (ml), minor
Local time
UTC
2023-12-21 15:08:33 UTC
Depth
34.4 km (21.4 mi), shallow
Epicenter
51.364° N, 175.306° 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 5.8 km horizontally, 15.1 km in depth
Magnitude uncertainty
±0.12
Depth from
From location
Station coverage gap
245°, poorly surrounded by stations
Stations used
18

Nearby

Within 100 km, magnitude 1.5 and up: 122 in the 60 days after this one and 51 in the 30 days before it.

After

  1. 2.799 km ESE of Adak, Alaska · 1014 days ago · 35 km deep · 10 km away
  2. 2.6109 km SE of Adak, Alaska · 1014 days ago · 25 km deep · 11 km away
  3. 3.2113 km SE of Adak, Alaska · 1014 days ago · 35 km deep · 15 km away
  4. 2.9110 km SE of Adak, Alaska · 1014 days ago · 35 km deep · 5 km away
  5. 2.8108 km SE of Adak, Alaska · 1014 days ago · 29 km deep · 14 km away
  6. 3.1109 km SE of Adak, Alaska · 1014 days ago · 35 km deep · 11 km away
  7. 2.7107 km ESE of Adak, Alaska · 1014 days ago · 21 km deep · 2 km away
  8. 4.6119 km SE of Adak, Alaska · 1014 days ago · 18 km deep · 15 km away · felt by 1
  9. 3.0114 km SE of Adak, Alaska · 1014 days ago · 35 km deep · 18 km away
  10. 4.7120 km SE of Adak, Alaska · 1014 days ago · 29 km deep · 16 km away
  11. 3.3128 km SE of Adak, Alaska · 1014 days ago · 35 km deep · 27 km away
  12. 3.6116 km SE of Adak, Alaska · 1014 days ago · 35 km deep · 18 km away
  13. 2.7107 km SE of Adak, Alaska · 1014 days ago · 35 km deep · 9 km away
  14. 4.1105 km SE of Adak, Alaska · 1014 days ago · 38 km deep · 11 km away
  15. 3.8106 km SE of Adak, Alaska · 1014 days ago · 35 km deep · 10 km away
  16. 4.0114 km SE of Adak, Alaska · 1014 days ago · 34 km deep · 16 km away
  17. 3.024 km E of Adak, Alaska · 1014 days ago · 77 km deep · 86 km away
  18. 3.0112 km SE of Adak, Alaska · 1013 days ago · 10 km deep · 16 km away
  19. 3.3117 km SE of Adak, Alaska · 1013 days ago · 10 km deep · 11 km away
  20. 2.9105 km ESE of Adak, Alaska · 1013 days ago · 35 km deep · 2 km away
  21. 4.1110 km SE of Adak, Alaska · 1013 days ago · 42 km deep · 15 km away · felt by 1
  22. 2.6111 km SE of Adak, Alaska · 1013 days ago · 16 km deep · 13 km away
  23. 4.0113 km SE of Adak, Alaska · 1013 days ago · 22 km deep · 15 km away
  24. 2.1108 km SE of Adak, Alaska · 1012 days ago · 13 km deep · 14 km away
  25. 2.294 km S of Adak, Alaska · 1012 days ago · 16 km deep · 99 km away
  26. 2.278 km S of Adak, Alaska · 1012 days ago · 19 km deep · 91 km away
  27. 3.293 km SW of Atka, Alaska · 1012 days ago · 49 km deep · 32 km away
  28. 3.3103 km ESE of Adak, Alaska · 1012 days ago · 35 km deep · 6 km away
  29. 2.6120 km SE of Adak, Alaska · 1012 days ago · 10 km deep · 21 km away
  30. 3.6110 km ESE of Adak, Alaska · 1012 days ago · 30 km deep · 3 km away
  31. 2.182 km ENE of Adak, Alaska · 1011 days ago · 95 km deep · 77 km away
  32. 1.929 km S of Atka, Alaska · 1011 days ago · 65 km deep · 100 km away
  33. 1.860 km SE of Adak, Alaska · 1011 days ago · 26 km deep · 56 km away
  34. 1.9105 km ESE of Adak, Alaska · 1011 days ago · 26 km deep · 2 km away
  35. 1.823 km SSW of Atka, Alaska · 1011 days ago · 60 km deep · 97 km away
  36. 3.7110 km SE of Adak, Alaska · 1011 days ago · 35 km deep · 12 km away
  37. 2.0103 km ESE of Adak, Alaska · 1011 days ago · 26 km deep · 5 km away
  38. 3.2109 km ESE of Adak, Alaska · 1010 days ago · 28 km deep · 2 km away
  39. 2.6103 km ESE of Adak, Alaska · 1009 days ago · 35 km deep · 5 km away
  40. 2.6103 km ESE of Adak, Alaska · 1009 days ago · 35 km deep · 5 km away
  41. 3.0108 km SE of Adak, Alaska · 1009 days ago · 35 km deep · 5 km away
  42. 2.797 km SW of Atka, Alaska · 1009 days ago · 35 km deep · 26 km away
  43. 3.9109 km ESE of Adak, Alaska · 1008 days ago · 35 km deep · 1 km away
  44. 1.884 km SW of Atka, Alaska · 1008 days ago · 14 km deep · 36 km away
  45. 2.298 km ESE of Adak, Alaska · 1007 days ago · 26 km deep · 10 km away
  46. 2.060 km SSE of Adak, Alaska · 1007 days ago · 23 km deep · 60 km away
  47. 2.3131 km SE of Adak, Alaska · 1007 days ago · 26 km deep · 26 km away
  48. 1.860 km SSE of Adak, Alaska · 1007 days ago · 23 km deep · 59 km away
  49. 4.1115 km ESE of Adak, Alaska · 1006 days ago · 39 km deep · 18 km away
  50. 3.8124 km SE of Adak, Alaska · 1006 days ago · 35 km deep · 18 km away
  51. 3.0118 km SE of Adak, Alaska · 1006 days ago · 10 km deep · 28 km away
  52. 2.039 km S of Adak, Alaska · 1005 days ago · 42 km deep · 95 km away
  53. 3.875 km S of Atka, Alaska · 1005 days ago · 45 km deep · 72 km away
  54. 2.052 km S of Adak, Alaska · 1004 days ago · 31 km deep · 93 km away
  55. 3.1106 km ESE of Adak, Alaska · 1003 days ago · 35 km deep · 14 km away
  56. 2.021 km SSW of Atka, Alaska · 999 days ago · 11 km deep · 100 km away
  57. 3.5113 km SE of Adak, Alaska · 995 days ago · 35 km deep · 7 km away
  58. 4.9124 km SSW of Atka, Alaska · 995 days ago · 10 km deep · 31 km away
  59. 3.3129 km SSW of Atka, Alaska · 994 days ago · 35 km deep · 33 km away
  60. 3.8129 km SSW of Atka, Alaska · 994 days ago · 25 km deep · 30 km away

The first 60 of 122.

Before

  1. 6.1116 km SE of Adak, Alaska · 1014 days ago · 20 km deep · 17 km away · felt by 3 · tsunami flag
  2. 2.566 km WSW of Atka, Alaska · 1015 days ago · 81 km deep · 74 km away
  3. 2.262 km SE of Adak, Alaska · 1015 days ago · 22 km deep · 49 km away
  4. 2.157 km SSW of Atka, Alaska · 1016 days ago · 42 km deep · 65 km away
  5. 2.574 km W of Atka, Alaska · 1016 days ago · 117 km deep · 86 km away
  6. 2.166 km SSE of Adak, Alaska · 1017 days ago · 19 km deep · 77 km away
  7. 1.965 km SE of Adak, Alaska · 1018 days ago · 34 km deep · 45 km away
  8. 2.9116 km ESE of Adak, Alaska · 1018 days ago · 10 km deep · 9 km away
  9. 1.859 km SE of Adak, Alaska · 1018 days ago · 26 km deep · 51 km away
  10. 1.971 km WSW of Atka, Alaska · 1019 days ago · 63 km deep · 72 km away
  11. 2.794 km SW of Atka, Alaska · 1019 days ago · 35 km deep · 27 km away
  12. 2.630 km S of Adak, Alaska · 1021 days ago · 67 km deep · 99 km away
  13. 3.887 km SSW of Atka, Alaska · 1021 days ago · 46 km deep · 41 km away
  14. 2.065 km WSW of Atka, Alaska · 1021 days ago · 61 km deep · 63 km away
  15. 2.546 km SSE of Adak, Alaska · 1022 days ago · 35 km deep · 83 km away
  16. 2.049 km SSE of Adak, Alaska · 1022 days ago · 41 km deep · 79 km away
  17. 1.781 km E of Adak, Alaska · 1022 days ago · 32 km deep · 44 km away
  18. 2.377 km W of Atka, Alaska · 1023 days ago · 136 km deep · 94 km away
  19. 4.384 km WSW of Atka, Alaska · 1023 days ago · 48 km deep · 49 km away
  20. 2.042 km W of Atka, Alaska · 1024 days ago · 14 km deep · 97 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000m2gq (also filed as ak023gbcrhu9). Read Thu, Oct 1, 2026, 1:37 AM UTC.