Alaska earthquakes

M3.0 earthquake 46 km ESE of Atka, Alaska

A magnitude 3.0 earthquake struck 46 km ESE of Atka, Alaska on Thu, Aug 3, 2023, 10:44 PM HADT (07:44 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M4.5 135 km SE 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
2023-08-04 07:44:59 UTC
Depth
10.2 km (6.3 mi), shallow
Epicenter
51.971° N, 173.627° 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 · ±0.128 · 8 stations
2.6ML, 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 5.3 km horizontally, 9.7 km in depth
Magnitude uncertainty
±0.13
Depth from
From location
Station coverage gap
300°, poorly surrounded by stations
Stations used
14

Nearby

Within 100 km, magnitude 1.5 and up: 184 in the 60 days after this one and 44 in the 30 days before it.

After

  1. 3.527 km SSE of Atka, Alaska · 1157 days ago · 59 km deep · 27 km away
  2. 4.5135 km SE of Atka, Alaska · 1155 days ago · 18 km deep · 90 km away
  3. 3.179 km SSE of Atka, Alaska · 1155 days ago · 35 km deep · 45 km away
  4. 2.746 km SE of Atka, Alaska · 1155 days ago · 10 km deep · 3 km away
  5. 2.742 km SE of Atka, Alaska · 1155 days ago · 10 km deep · 6 km away
  6. 2.8Andreanof Islands, Aleutian Islands, Alaska · 1154 days ago · 13 km deep · 82 km away
  7. 2.945 km NE of Atka, Alaska · 1154 days ago · 161 km deep · 55 km away
  8. 3.229 km NNW of Atka, Alaska · 1153 days ago · 184 km deep · 72 km away
  9. 3.049 km ESE of Atka, Alaska · 1153 days ago · 10 km deep · 3 km away
  10. 3.368 km ESE of Atka, Alaska · 1151 days ago · 35 km deep · 23 km away
  11. 2.595 km ESE of Atka, Alaska · 1151 days ago · 35 km deep · 49 km away
  12. 3.156 km SW of Atka, Alaska · 1151 days ago · 19 km deep · 81 km away
  13. 2.822 km WNW of Atka, Alaska · 1150 days ago · 174 km deep · 69 km away
  14. 1.844 km S of Atka, Alaska · 1150 days ago · 11 km deep · 51 km away
  15. 2.137 km ESE of Atka, Alaska · 1150 days ago · 10 km deep · 13 km away
  16. 1.831 km ESE of Atka, Alaska · 1150 days ago · 8 km deep · 15 km away
  17. 2.841 km S of Atka, Alaska · 1150 days ago · 52 km deep · 41 km away
  18. 1.735 km ESE of Atka, Alaska · 1149 days ago · 12 km deep · 13 km away
  19. 2.896 km ESE of Atka, Alaska · 1149 days ago · 149 km deep · 51 km away
  20. 2.842 km WSW of Atka, Alaska · 1149 days ago · 90 km deep · 82 km away
  21. 3.048 km NNE of Atka, Alaska · 1149 days ago · 180 km deep · 69 km away
  22. 2.019 km WNW of Atka, Alaska · 1148 days ago · 137 km deep · 65 km away
  23. 2.137 km S of Atka, Alaska · 1148 days ago · 57 km deep · 43 km away
  24. 2.061 km ESE of Atka, Alaska · 1148 days ago · 43 km deep · 15 km away
  25. 3.267 km SSE of Atka, Alaska · 1148 days ago · 10 km deep · 39 km away
  26. 3.243 km ESE of Atka, Alaska · 1148 days ago · 10 km deep · 5 km away
  27. 2.815 km ENE of Atka, Alaska · 1147 days ago · 157 km deep · 40 km away
  28. 2.6114 km ESE of Atka, Alaska · 1147 days ago · 25 km deep · 67 km away
  29. 1.552 km WSW of Atka, Alaska · 1147 days ago · 13 km deep · 90 km away
  30. 1.995 km S of Atka, Alaska · 1147 days ago · 26 km deep · 87 km away
  31. 2.5136 km SSE of Atka, Alaska · 1145 days ago · 25 km deep · 97 km away
  32. 2.545 km NW of Atka, Alaska · 1145 days ago · 178 km deep · 91 km away
  33. 1.771 km SW of Atka, Alaska · 1145 days ago · 26 km deep · 93 km away
  34. 1.946 km SSE of Atka, Alaska · 1145 days ago · 25 km deep · 34 km away
  35. 2.079 km ESE of Atka, Alaska · 1144 days ago · 32 km deep · 34 km away
  36. 1.655 km SW of Atka, Alaska · 1143 days ago · 41 km deep · 75 km away
  37. 3.066 km ESE of Atka, Alaska · 1143 days ago · 35 km deep · 21 km away
  38. 1.8Andreanof Islands, Aleutian Islands, Alaska · 1143 days ago · 25 km deep · 94 km away
  39. 3.344 km SE of Atka, Alaska · 1141 days ago · 9 km deep · 3 km away
  40. 2.8100 km SE of Atka, Alaska · 1141 days ago · 17 km deep · 59 km away
  41. 2.063 km SW of Atka, Alaska · 1141 days ago · 52 km deep · 90 km away
  42. 1.946 km SSW of Atka, Alaska · 1140 days ago · 42 km deep · 64 km away
  43. 2.034 km ESE of Atka, Alaska · 1140 days ago · 10 km deep · 14 km away
  44. 3.739 km ESE of Atka, Alaska · 1139 days ago · 10 km deep · 9 km away
  45. 1.848 km E of Atka, Alaska · 1139 days ago · 5 km deep · 19 km away
  46. 3.643 km ESE of Atka, Alaska · 1139 days ago · 10 km deep · 4 km away
  47. 2.546 km ESE of Atka, Alaska · 1139 days ago · 11 km deep · 0 km away
  48. 2.8Andreanof Islands, Aleutian Islands, Alaska · 1139 days ago · 2 km deep · 16 km away
  49. 2.8Andreanof Islands, Aleutian Islands, Alaska · 1139 days ago · 11 km deep · 5 km away
  50. 2.640 km ESE of Atka, Alaska · 1139 days ago · 11 km deep · 7 km away
  51. 1.937 km ESE of Atka, Alaska · 1139 days ago · 10 km deep · 13 km away
  52. 1.934 km ESE of Atka, Alaska · 1139 days ago · 16 km deep · 16 km away
  53. 1.730 km ESE of Atka, Alaska · 1139 days ago · 20 km deep · 17 km away
  54. 2.138 km E of Atka, Alaska · 1139 days ago · 17 km deep · 18 km away
  55. 2.741 km SE of Atka, Alaska · 1139 days ago · 9 km deep · 7 km away
  56. 2.744 km ESE of Atka, Alaska · 1139 days ago · 10 km deep · 3 km away
  57. 1.938 km E of Atka, Alaska · 1139 days ago · 21 km deep · 23 km away
  58. 1.631 km ESE of Atka, Alaska · 1139 days ago · 8 km deep · 16 km away
  59. 1.731 km ESE of Atka, Alaska · 1139 days ago · 7 km deep · 16 km away
  60. 1.632 km ESE of Atka, Alaska · 1139 days ago · 6 km deep · 14 km away

The first 60 of 184.

Before

  1. 3.133 km NW of Atka, Alaska · 1158 days ago · 169 km deep · 80 km away
  2. 3.050 km W of Atka, Alaska · 1158 days ago · 143 km deep · 95 km away
  3. 2.856 km ESE of Atka, Alaska · 1158 days ago · 35 km deep · 12 km away
  4. 2.760 km SSW of Atka, Alaska · 1159 days ago · 35 km deep · 69 km away
  5. 2.813 km SW of Atka, Alaska · 1162 days ago · 211 km deep · 52 km away
  6. 2.5Andreanof Islands, Aleutian Islands, Alaska · 1162 days ago · 11 km deep · 3 km away
  7. 2.138 km ESE of Atka, Alaska · 1162 days ago · 16 km deep · 17 km away
  8. 2.142 km E of Atka, Alaska · 1162 days ago · 16 km deep · 19 km away
  9. 2.663 km S of Atka, Alaska · 1162 days ago · 10 km deep · 62 km away
  10. 2.038 km ESE of Atka, Alaska · 1165 days ago · 19 km deep · 16 km away
  11. 2.553 km ESE of Atka, Alaska · 1165 days ago · 35 km deep · 8 km away
  12. 2.8Andreanof Islands, Aleutian Islands, Alaska · 1166 days ago · 35 km deep · 40 km away
  13. 3.1Andreanof Islands, Aleutian Islands, Alaska · 1168 days ago · 189 km deep · 77 km away
  14. 3.199 km ENE of Atka, Alaska · 1168 days ago · 10 km deep · 82 km away
  15. 3.361 km SW of Atka, Alaska · 1168 days ago · 61 km deep · 85 km away
  16. 3.061 km SSW of Atka, Alaska · 1170 days ago · 35 km deep · 75 km away
  17. 2.263 km ESE of Atka, Alaska · 1171 days ago · 22 km deep · 24 km away
  18. 3.4100 km SSE of Atka, Alaska · 1172 days ago · 25 km deep · 75 km away
  19. 2.643 km W of Atka, Alaska · 1173 days ago · 15 km deep · 84 km away
  20. 2.146 km SE of Atka, Alaska · 1173 days ago · 67 km deep · 8 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000knvg (also filed as ak0239xcijyw). Read Sun, Oct 4, 2026, 8:58 PM UTC.