Alaska earthquakes

M2.9 earthquake 143 km W of Adak, Alaska

A magnitude 2.9 earthquake struck 143 km W of Adak, Alaska on Thu, Dec 14, 2023, 5:54 AM HAST (15:54 UTC), 19 km (12 mi) below the surface.

A larger quake followed: M4.7 134 km SW 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
2.9 (ML, local (Richter)), micro
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2023-12-14 15:54:11 UTC
Depth
18.7 km (11.6 mi), shallow
Epicenter
51.704° N, 178.690° 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
2.9ML, local (Richter)USGS National Earthquake Information CenterPreferred · Reviewed · ±0.081 · 20 stations
2.4ML, 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 2.6 km horizontally, 6.3 km in depth
Magnitude uncertainty
±0.08
Depth from
From location
Station coverage gap
121°
Stations used
23

Nearby

Within 100 km, magnitude 1.5 and up: 136 in the 60 days after this one and 88 in the 30 days before it.

After

  1. 1.990 km WSW of Adak, Alaska · 1020 days ago · 13 km deep · 72 km away
  2. 2.8160 km SW of Adak, Alaska · 1020 days ago · 35 km deep · 72 km away
  3. 3.1127 km WNW of Adak, Alaska · 1020 days ago · 192 km deep · 85 km away
  4. 2.0114 km SW of Adak, Alaska · 1020 days ago · 25 km deep · 72 km away
  5. 2.290 km SW of Adak, Alaska · 1019 days ago · 39 km deep · 86 km away
  6. 2.0132 km W of Adak, Alaska · 1019 days ago · 18 km deep · 12 km away
  7. 1.968 km SW of Adak, Alaska · 1019 days ago · 47 km deep · 95 km away
  8. 2.1118 km WSW of Adak, Alaska · 1019 days ago · 26 km deep · 42 km away
  9. 2.897 km WSW of Adak, Alaska · 1019 days ago · 35 km deep · 59 km away
  10. 1.797 km WSW of Adak, Alaska · 1019 days ago · 14 km deep · 57 km away
  11. 1.9117 km WSW of Adak, Alaska · 1019 days ago · 26 km deep · 53 km away
  12. 1.560 km WSW of Adak, Alaska · 1018 days ago · 3 km deep · 83 km away
  13. 1.886 km WSW of Adak, Alaska · 1018 days ago · 40 km deep · 69 km away
  14. 2.4127 km W of Adak, Alaska · 1018 days ago · 88 km deep · 16 km away
  15. 2.7125 km WNW of Adak, Alaska · 1018 days ago · 151 km deep · 54 km away
  16. 2.1122 km WSW of Adak, Alaska · 1018 days ago · 26 km deep · 42 km away
  17. 2.8192 km W of Adak, Alaska · 1017 days ago · 67 km deep · 49 km away
  18. 4.0119 km WNW of Adak, Alaska · 1016 days ago · 221 km deep · 61 km away
  19. 2.3138 km WSW of Adak, Alaska · 1016 days ago · 88 km deep · 13 km away
  20. 4.7134 km SW of Adak, Alaska · 1016 days ago · 24 km deep · 83 km away
  21. 4.5125 km SW of Adak, Alaska · 1016 days ago · 46 km deep · 64 km away
  22. 2.8168 km WSW of Adak, Alaska · 1016 days ago · 69 km deep · 30 km away
  23. 2.084 km SW of Adak, Alaska · 1016 days ago · 13 km deep · 79 km away
  24. 2.9207 km W of Adak, Alaska · 1015 days ago · 73 km deep · 64 km away
  25. 2.8121 km WSW of Adak, Alaska · 1014 days ago · 35 km deep · 50 km away
  26. 2.3152 km WSW of Adak, Alaska · 1014 days ago · 22 km deep · 56 km away
  27. 1.598 km WSW of Adak, Alaska · 1014 days ago · 19 km deep · 57 km away
  28. 1.984 km W of Adak, Alaska · 1013 days ago · 10 km deep · 60 km away
  29. 2.0211 km W of Adak, Alaska · 1013 days ago · 16 km deep · 71 km away
  30. 2.7208 km WSW of Adak, Alaska · 1013 days ago · 68 km deep · 66 km away
  31. 2.8121 km WSW of Adak, Alaska · 1013 days ago · 35 km deep · 45 km away
  32. 2.251 km W of Adak, Alaska · 1013 days ago · 79 km deep · 91 km away
  33. 2.285 km WSW of Adak, Alaska · 1012 days ago · 76 km deep · 63 km away
  34. 3.5130 km SW of Adak, Alaska · 1012 days ago · 35 km deep · 67 km away
  35. 2.887 km WSW of Adak, Alaska · 1012 days ago · 69 km deep · 64 km away
  36. 1.9128 km WSW of Adak, Alaska · 1012 days ago · 8 km deep · 18 km away
  37. 1.7118 km WSW of Adak, Alaska · 1012 days ago · 20 km deep · 41 km away
  38. 1.9132 km SW of Adak, Alaska · 1011 days ago · 21 km deep · 73 km away
  39. 2.0118 km WSW of Adak, Alaska · 1011 days ago · 21 km deep · 43 km away
  40. 1.659 km W of Adak, Alaska · 1011 days ago · 13 km deep · 83 km away
  41. 1.760 km W of Adak, Alaska · 1010 days ago · 2 km deep · 83 km away
  42. 2.7158 km WSW of Adak, Alaska · 1010 days ago · 33 km deep · 64 km away
  43. 2.4219 km WSW of Adak, Alaska · 1010 days ago · 9 km deep · 100 km away
  44. 2.3134 km WSW of Adak, Alaska · 1010 days ago · 25 km deep · 41 km away
  45. 2.188 km WSW of Adak, Alaska · 1010 days ago · 50 km deep · 71 km away
  46. 2.3208 km WSW of Adak, Alaska · 1009 days ago · 33 km deep · 68 km away
  47. 2.2205 km WSW of Adak, Alaska · 1009 days ago · 34 km deep · 66 km away
  48. 2.2120 km SW of Adak, Alaska · 1009 days ago · 23 km deep · 66 km away
  49. 3.3168 km WSW of Adak, Alaska · 1008 days ago · 28 km deep · 40 km away
  50. 3.2167 km WSW of Adak, Alaska · 1008 days ago · 26 km deep · 41 km away
  51. 1.869 km SW of Adak, Alaska · 1008 days ago · 33 km deep · 87 km away
  52. 2.0124 km WSW of Adak, Alaska · 1008 days ago · 25 km deep · 45 km away
  53. 2.8125 km WSW of Adak, Alaska · 1007 days ago · 35 km deep · 52 km away
  54. 2.4228 km WSW of Adak, Alaska · 1007 days ago · 60 km deep · 86 km away
  55. 3.569 km WSW of Adak, Alaska · 1007 days ago · 55 km deep · 84 km away
  56. 2.193 km SW of Adak, Alaska · 1007 days ago · 31 km deep · 84 km away
  57. 2.690 km SW of Adak, Alaska · 1007 days ago · 35 km deep · 89 km away
  58. 2.7200 km WSW of Adak, Alaska · 1006 days ago · 68 km deep · 58 km away
  59. 2.2153 km WSW of Adak, Alaska · 1006 days ago · 18 km deep · 30 km away
  60. 2.161 km WSW of Adak, Alaska · 1005 days ago · 69 km deep · 86 km away

The first 60 of 136.

Before

  1. 2.6136 km SW of Adak, Alaska · 1022 days ago · 10 km deep · 98 km away
  2. 2.1127 km WSW of Adak, Alaska · 1022 days ago · 22 km deep · 45 km away
  3. 1.9129 km W of Adak, Alaska · 1023 days ago · 13 km deep · 13 km away
  4. 1.859 km WSW of Adak, Alaska · 1023 days ago · 13 km deep · 83 km away
  5. 1.959 km WSW of Adak, Alaska · 1023 days ago · 13 km deep · 84 km away
  6. 1.894 km WSW of Adak, Alaska · 1023 days ago · 21 km deep · 62 km away
  7. 2.6209 km W of Adak, Alaska · 1024 days ago · 111 km deep · 70 km away
  8. 2.7144 km WNW of Adak, Alaska · 1024 days ago · 193 km deep · 69 km away
  9. 1.560 km W of Adak, Alaska · 1024 days ago · 7 km deep · 82 km away
  10. 3.3135 km WSW of Adak, Alaska · 1025 days ago · 39 km deep · 60 km away
  11. 1.660 km WSW of Adak, Alaska · 1025 days ago · 13 km deep · 84 km away
  12. 1.859 km W of Adak, Alaska · 1025 days ago · 9 km deep · 84 km away
  13. 1.7128 km WSW of Adak, Alaska · 1025 days ago · 13 km deep · 20 km away
  14. 1.759 km W of Adak, Alaska · 1027 days ago · 13 km deep · 84 km away
  15. 1.8133 km W of Adak, Alaska · 1028 days ago · 7 km deep · 12 km away
  16. 3.5174 km W of Adak, Alaska · 1028 days ago · 118 km deep · 35 km away
  17. 3.1202 km WSW of Adak, Alaska · 1029 days ago · 21 km deep · 72 km away
  18. 2.8231 km W of Adak, Alaska · 1029 days ago · 131 km deep · 90 km away
  19. 1.9168 km WSW of Adak, Alaska · 1029 days ago · 25 km deep · 41 km away
  20. 2.7197 km WSW of Adak, Alaska · 1029 days ago · 72 km deep · 55 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000m0d0 (also filed as ak023fzs9vhx). Read Thu, Oct 1, 2026, 6:29 AM UTC.