Alaska earthquakes

M3.0 earthquake 127 km SE of Atka, Alaska

A magnitude 3.0 earthquake struck 127 km SE of Atka, Alaska on Wed, Sep 27, 2023, 8:36 AM HADT (17:36 UTC), 35 km (22 mi) below the surface.

A larger quake followed: M5.0 129 km E 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
3.0 (ML, local (Richter)), minor
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2023-09-27 17:36:09 UTC
Depth
35.0 km (21.7 mi), shallow
Epicenter
51.561° N, 172.653° 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
3.0ML, local (Richter)USGS National Earthquake Information CenterPreferred · Reviewed · ±0.115 · 10 stations
2.5ML, 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 5.7 km horizontally, 2.0 km in depth
Magnitude uncertainty
±0.12
Depth from
Operator assigned
Station coverage gap
324°, poorly surrounded by stations
Stations used
11

Nearby

Within 100 km, magnitude 1.5 and up: 63 in the 60 days after this one and 50 in the 30 days before it.

After

  1. 1.739 km ESE of Atka, Alaska · 1099 days ago · 9 km deep · 89 km away
  2. 2.589 km ESE of Atka, Alaska · 1099 days ago · 73 km deep · 49 km away
  3. 1.845 km E of Atka, Alaska · 1099 days ago · 16 km deep · 88 km away
  4. 1.732 km ESE of Atka, Alaska · 1098 days ago · 11 km deep · 97 km away
  5. 2.979 km SSE of Atka, Alaska · 1096 days ago · 35 km deep · 83 km away
  6. 2.8184 km SSE of Atka, Alaska · 1096 days ago · 39 km deep · 99 km away
  7. 2.131 km ESE of Atka, Alaska · 1095 days ago · 8 km deep · 96 km away
  8. 1.940 km ESE of Atka, Alaska · 1095 days ago · 10 km deep · 89 km away
  9. 2.3100 km SSE of Atka, Alaska · 1095 days ago · 7 km deep · 67 km away
  10. 1.829 km ESE of Atka, Alaska · 1095 days ago · 13 km deep · 99 km away
  11. 1.932 km ESE of Atka, Alaska · 1094 days ago · 17 km deep · 97 km away
  12. 2.138 km ESE of Atka, Alaska · 1094 days ago · 13 km deep · 90 km away
  13. 3.245 km SE of Atka, Alaska · 1089 days ago · 10 km deep · 82 km away
  14. 2.949 km ESE of Atka, Alaska · 1089 days ago · 11 km deep · 78 km away
  15. 3.579 km SE of Atka, Alaska · 1089 days ago · 35 km deep · 53 km away
  16. 2.850 km ESE of Atka, Alaska · 1088 days ago · 10 km deep · 77 km away
  17. 1.941 km E of Atka, Alaska · 1088 days ago · 13 km deep · 92 km away
  18. 2.143 km E of Atka, Alaska · 1087 days ago · 28 km deep · 91 km away
  19. 1.960 km SE of Atka, Alaska · 1087 days ago · 55 km deep · 67 km away
  20. 1.536 km ESE of Atka, Alaska · 1087 days ago · 14 km deep · 91 km away
  21. 3.549 km SE of Atka, Alaska · 1087 days ago · 5 km deep · 79 km away
  22. 1.637 km ESE of Atka, Alaska · 1087 days ago · 6 km deep · 91 km away
  23. 1.634 km ESE of Atka, Alaska · 1087 days ago · 7 km deep · 93 km away
  24. 1.938 km ESE of Atka, Alaska · 1086 days ago · 7 km deep · 90 km away
  25. 3.951 km E of Atka, Alaska · 1086 days ago · 78 km deep · 87 km away
  26. 2.6153 km E of Atka, Alaska · 1086 days ago · 35 km deep · 67 km away
  27. 3.6164 km E of Atka, Alaska · 1084 days ago · 62 km deep · 93 km away
  28. 3.259 km SE of Atka, Alaska · 1081 days ago · 26 km deep · 69 km away
  29. 3.4200 km ESE of Atka, Alaska · 1077 days ago · 35 km deep · 90 km away
  30. 1.933 km ESE of Atka, Alaska · 1075 days ago · 10 km deep · 96 km away
  31. 1.936 km ESE of Atka, Alaska · 1074 days ago · 9 km deep · 92 km away
  32. 2.7186 km SE of Atka, Alaska · 1073 days ago · 10 km deep · 80 km away
  33. 2.151 km SE of Atka, Alaska · 1073 days ago · 24 km deep · 82 km away
  34. 1.941 km ESE of Atka, Alaska · 1073 days ago · 1 km deep · 87 km away
  35. 1.836 km ESE of Atka, Alaska · 1073 days ago · 5 km deep · 91 km away
  36. 1.928 km SE of Atka, Alaska · 1072 days ago · 3 km deep · 100 km away
  37. 2.2Andreanof Islands, Aleutian Islands, Alaska · 1072 days ago · 21 km deep · 59 km away
  38. 2.431 km ESE of Atka, Alaska · 1071 days ago · 12 km deep · 98 km away
  39. 3.046 km ESE of Atka, Alaska · 1070 days ago · 10 km deep · 81 km away
  40. 2.042 km E of Atka, Alaska · 1069 days ago · 26 km deep · 96 km away
  41. 3.663 km SE of Atka, Alaska · 1069 days ago · 35 km deep · 64 km away
  42. 3.5174 km ESE of Atka, Alaska · 1069 days ago · 35 km deep · 71 km away
  43. 4.156 km E of Atka, Alaska · 1068 days ago · 86 km deep · 91 km away
  44. 2.940 km SE of Atka, Alaska · 1068 days ago · 10 km deep · 87 km away
  45. 2.7164 km SSE of Atka, Alaska · 1066 days ago · 10 km deep · 96 km away
  46. 2.059 km SE of Atka, Alaska · 1065 days ago · 24 km deep · 71 km away
  47. 1.737 km ESE of Atka, Alaska · 1064 days ago · 7 km deep · 91 km away
  48. 2.456 km ESE of Atka, Alaska · 1064 days ago · 38 km deep · 72 km away
  49. 5.0129 km E of Atka, Alaska · 1063 days ago · 30 km deep · 53 km away · felt by 1
  50. 2.958 km SE of Atka, Alaska · 1062 days ago · 17 km deep · 72 km away
  51. 3.3133 km ESE of Atka, Alaska · 1061 days ago · 35 km deep · 25 km away
  52. 2.678 km SE of Atka, Alaska · 1058 days ago · 35 km deep · 58 km away
  53. 4.264 km E of Atka, Alaska · 1058 days ago · 80 km deep · 74 km away
  54. 2.978 km SSE of Atka, Alaska · 1054 days ago · 35 km deep · 75 km away
  55. 3.1155 km SSE of Atka, Alaska · 1053 days ago · 10 km deep · 72 km away
  56. 2.374 km SSE of Atka, Alaska · 1052 days ago · 18 km deep · 82 km away
  57. 2.862 km ESE of Atka, Alaska · 1051 days ago · 60 km deep · 69 km away
  58. 2.347 km ESE of Atka, Alaska · 1050 days ago · 8 km deep · 82 km away
  59. 3.259 km SSE of Atka, Alaska · 1050 days ago · 35 km deep · 80 km away
  60. 2.3Andreanof Islands, Aleutian Islands, Alaska · 1049 days ago · 42 km deep · 86 km away

The first 60 of 63.

Before

  1. 2.3109 km SSE of Atka, Alaska · 1100 days ago · 16 km deep · 79 km away
  2. 1.635 km ESE of Atka, Alaska · 1100 days ago · 6 km deep · 93 km away
  3. 1.652 km SSE of Atka, Alaska · 1100 days ago · 7 km deep · 97 km away
  4. 1.831 km ESE of Atka, Alaska · 1101 days ago · 13 km deep · 97 km away
  5. 3.048 km ESE of Atka, Alaska · 1102 days ago · 10 km deep · 80 km away
  6. 3.244 km ESE of Atka, Alaska · 1102 days ago · 13 km deep · 83 km away
  7. 3.150 km ESE of Atka, Alaska · 1102 days ago · 14 km deep · 79 km away
  8. 3.043 km SE of Atka, Alaska · 1104 days ago · 10 km deep · 84 km away
  9. 2.171 km E of Atka, Alaska · 1104 days ago · 11 km deep · 90 km away
  10. 1.933 km ESE of Atka, Alaska · 1105 days ago · 12 km deep · 96 km away
  11. 3.573 km S of Atka, Alaska · 1106 days ago · 44 km deep · 94 km away
  12. 2.8Andreanof Islands, Aleutian Islands, Alaska · 1106 days ago · 10 km deep · 87 km away
  13. 3.1Andreanof Islands, Aleutian Islands, Alaska · 1108 days ago · 10 km deep · 80 km away
  14. 3.148 km SE of Atka, Alaska · 1109 days ago · 10 km deep · 79 km away
  15. 3.176 km ESE of Atka, Alaska · 1109 days ago · 73 km deep · 53 km away
  16. 1.835 km ESE of Atka, Alaska · 1110 days ago · 9 km deep · 93 km away
  17. 3.245 km SE of Atka, Alaska · 1110 days ago · 10 km deep · 83 km away
  18. 2.134 km ESE of Atka, Alaska · 1110 days ago · 6 km deep · 94 km away
  19. 3.338 km ESE of Atka, Alaska · 1111 days ago · 17 km deep · 93 km away
  20. 2.435 km ESE of Atka, Alaska · 1111 days ago · 8 km deep · 93 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000lema (also filed as ak023cetft57). Read Thu, Oct 1, 2026, 8:28 AM UTC.