Alaska earthquakes

M4.1 earthquake 94 km NNE of Adak, Alaska

A magnitude 4.1 earthquake struck 94 km NNE of Adak, Alaska on Mon, Oct 9, 2023, 10:53 PM HADT (07:53 UTC), 213 km (133 mi) below the surface.

A larger quake followed: M6.4 78 km NNW 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
4.1 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2023-10-10 07:53:06 UTC
Depth
213.4 km (132.6 mi), intermediate-depth
Epicenter
52.587° N, 175.874° 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
4.1mb, body-waveUSGS National Earthquake Information CenterPreferred · Reviewed · ±0.099 · 28 stations
3.7ML, 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 9.4 km horizontally, 6.4 km in depth
Magnitude uncertainty
±0.10
Depth from
From location
Station coverage gap
73°
Stations used
58

Nearby

Within 100 km, magnitude 1.5 and up: 46 in the 60 days after this one and 20 in the 30 days before it.

After

  1. 2.158 km ENE of Adak, Alaska · 1088 days ago · 165 km deep · 63 km away
  2. 2.553 km NNE of Adak, Alaska · 1087 days ago · 161 km deep · 42 km away
  3. 2.182 km ENE of Adak, Alaska · 1087 days ago · 100 km deep · 51 km away
  4. 1.519 km NE of Adak, Alaska · 1085 days ago · 10 km deep · 76 km away
  5. 2.08 km NE of Adak, Alaska · 1085 days ago · 2 km deep · 87 km away
  6. 2.565 km E of Adak, Alaska · 1084 days ago · 69 km deep · 86 km away
  7. 2.764 km E of Adak, Alaska · 1083 days ago · 145 km deep · 78 km away
  8. 2.078 km W of Atka, Alaska · 1083 days ago · 106 km deep · 57 km away
  9. 2.452 km ESE of Adak, Alaska · 1083 days ago · 110 km deep · 94 km away
  10. 3.467 km WSW of Atka, Alaska · 1083 days ago · 84 km deep · 90 km away
  11. 6.478 km NNW of Adak, Alaska · 1082 days ago · 174 km deep · 71 km away · felt by 12 · tsunami flag
  12. 2.381 km ENE of Adak, Alaska · 1079 days ago · 137 km deep · 57 km away
  13. 3.039 km NNW of Atka, Alaska · 1078 days ago · 185 km deep · 96 km away
  14. 1.7Andreanof Islands, Aleutian Islands, Alaska · 1078 days ago · 10 km deep · 98 km away
  15. 2.847 km E of Adak, Alaska · 1077 days ago · 133 km deep · 85 km away
  16. 3.3100 km NE of Adak, Alaska · 1075 days ago · 205 km deep · 13 km away
  17. 4.0113 km WNW of Atka, Alaska · 1074 days ago · 217 km deep · 22 km away
  18. 2.372 km ENE of Adak, Alaska · 1073 days ago · 140 km deep · 42 km away
  19. 2.054 km WSW of Atka, Alaska · 1070 days ago · 119 km deep · 82 km away
  20. 1.885 km E of Adak, Alaska · 1069 days ago · 70 km deep · 81 km away
  21. 1.867 km W of Atka, Alaska · 1067 days ago · 76 km deep · 68 km away
  22. 2.087 km WSW of Atka, Alaska · 1066 days ago · 66 km deep · 89 km away
  23. 1.566 km E of Adak, Alaska · 1066 days ago · 62 km deep · 90 km away
  24. 3.953 km NE of Adak, Alaska · 1061 days ago · 129 km deep · 44 km away
  25. 1.8Andreanof Islands, Aleutian Islands, Alaska · 1058 days ago · 60 km deep · 94 km away
  26. 2.023 km ESE of Adak, Alaska · 1058 days ago · 65 km deep · 97 km away
  27. 2.030 km E of Adak, Alaska · 1057 days ago · 71 km deep · 84 km away
  28. 3.246 km E of Adak, Alaska · 1057 days ago · 149 km deep · 75 km away
  29. 2.3Andreanof Islands, Aleutian Islands, Alaska · 1055 days ago · 94 km deep · 70 km away
  30. 2.159 km ESE of Adak, Alaska · 1053 days ago · 65 km deep · 92 km away
  31. 2.972 km WSW of Atka, Alaska · 1051 days ago · 104 km deep · 77 km away
  32. 2.964 km W of Atka, Alaska · 1051 days ago · 105 km deep · 74 km away
  33. 4.132 km N of Adak, Alaska · 1050 days ago · 130 km deep · 69 km away
  34. 3.963 km NW of Atka, Alaska · 1049 days ago · 221 km deep · 68 km away
  35. 3.240 km WNW of Atka, Alaska · 1046 days ago · 175 km deep · 83 km away
  36. 3.369 km E of Adak, Alaska · 1044 days ago · 30 km deep · 90 km away
  37. 1.950 km W of Atka, Alaska · 1040 days ago · 14 km deep · 75 km away
  38. 1.6Andreanof Islands, Aleutian Islands, Alaska · 1038 days ago · 10 km deep · 94 km away
  39. 2.767 km W of Atka, Alaska · 1035 days ago · 132 km deep · 62 km away
  40. 2.221 km NE of Adak, Alaska · 1034 days ago · 110 km deep · 73 km away
  41. 3.174 km E of Adak, Alaska · 1033 days ago · 78 km deep · 84 km away
  42. 3.0106 km NNE of Adak, Alaska · 1032 days ago · 212 km deep · 35 km away
  43. 2.065 km E of Adak, Alaska · 1031 days ago · 13 km deep · 87 km away
  44. 3.268 km WSW of Atka, Alaska · 1031 days ago · 82 km deep · 82 km away
  45. 1.86 km ENE of Adak, Alaska · 1030 days ago · 7 km deep · 89 km away
  46. 2.657 km ENE of Adak, Alaska · 1028 days ago · 147 km deep · 54 km away

Before

  1. 2.841 km NE of Adak, Alaska · 1088 days ago · 131 km deep · 54 km away
  2. 2.152 km ENE of Adak, Alaska · 1089 days ago · 122 km deep · 53 km away
  3. 2.962 km WNW of Atka, Alaska · 1091 days ago · 201 km deep · 60 km away
  4. 1.647 km W of Atka, Alaska · 1092 days ago · 13 km deep · 82 km away
  5. 1.660 km WSW of Atka, Alaska · 1095 days ago · 66 km deep · 90 km away
  6. 2.742 km W of Atka, Alaska · 1096 days ago · 10 km deep · 85 km away
  7. 2.183 km WSW of Atka, Alaska · 1097 days ago · 75 km deep · 85 km away
  8. 2.272 km WSW of Atka, Alaska · 1098 days ago · 60 km deep · 90 km away
  9. 2.696 km WNW of Atka, Alaska · 1099 days ago · 198 km deep · 33 km away
  10. 1.839 km ESE of Adak, Alaska · 1101 days ago · 62 km deep · 93 km away
  11. 2.037 km NW of Atka, Alaska · 1101 days ago · 150 km deep · 87 km away
  12. 3.944 km NNW of Atka, Alaska · 1102 days ago · 202 km deep · 96 km away
  13. 1.948 km ENE of Adak, Alaska · 1102 days ago · 5 km deep · 58 km away
  14. 1.648 km ENE of Adak, Alaska · 1102 days ago · 5 km deep · 58 km away
  15. 2.8Andreanof Islands, Aleutian Islands, Alaska · 1104 days ago · 138 km deep · 65 km away
  16. 2.226 km E of Adak, Alaska · 1108 days ago · 67 km deep · 86 km away
  17. 2.9Andreanof Islands, Aleutian Islands, Alaska · 1111 days ago · 203 km deep · 87 km away
  18. 3.3101 km NNE of Adak, Alaska · 1112 days ago · 200 km deep · 8 km away
  19. 3.245 km NNW of Atka, Alaska · 1115 days ago · 180 km deep · 97 km away
  20. 2.215 km ESE of Adak, Alaska · 1116 days ago · 101 km deep · 93 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000lg0c (also filed as ak023d05kmkg). Read Fri, Oct 2, 2026, 2:36 AM UTC.