Alaska earthquakes

M2.5 earthquake 82 km SW of Adak, Alaska

A magnitude 2.5 earthquake struck 82 km SW of Adak, Alaska on Mon, Jul 3, 2023, 3:59 AM HADT (12:59 UTC), 35 km (22 mi) below the surface.

A larger quake followed: M4.7 149 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
2.5 (ML, local (Richter)), micro
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2023-07-03 12:59:51 UTC
Depth
35.0 km (21.7 mi), shallow
Epicenter
51.460° N, 177.618° 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
2.5ML, local (Richter)USGS National Earthquake Information CenterPreferred · Reviewed · ±0.115 · 10 stations
2.2ML, 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 2.8 km horizontally, 1.8 km in depth
Magnitude uncertainty
±0.12
Depth from
Operator assigned
Station coverage gap
214°, poorly surrounded by stations
Stations used
17

Nearby

Within 100 km, magnitude 1.5 and up: at least 201 in the 60 days after this one and at least 200 in the 30 days before it.

After

  1. 1.951 km SW of Adak, Alaska · 1186 days ago · 56 km deep · 34 km away
  2. 1.736 km SSE of Adak, Alaska · 1186 days ago · 57 km deep · 80 km away
  3. 2.199 km WSW of Adak, Alaska · 1186 days ago · 31 km deep · 19 km away
  4. 3.7142 km SW of Adak, Alaska · 1185 days ago · 36 km deep · 61 km away
  5. 2.288 km SW of Adak, Alaska · 1184 days ago · 26 km deep · 22 km away
  6. 1.949 km S of Adak, Alaska · 1184 days ago · 24 km deep · 75 km away
  7. 2.1170 km WSW of Adak, Alaska · 1184 days ago · 19 km deep · 88 km away
  8. 1.698 km SW of Adak, Alaska · 1184 days ago · 26 km deep · 21 km away
  9. 1.770 km SSW of Adak, Alaska · 1184 days ago · 46 km deep · 47 km away
  10. 1.9100 km W of Adak, Alaska · 1184 days ago · 94 km deep · 51 km away
  11. 1.7133 km WSW of Adak, Alaska · 1184 days ago · 32 km deep · 57 km away
  12. 2.1110 km WSW of Adak, Alaska · 1184 days ago · 7 km deep · 35 km away
  13. 1.9120 km S of Adak, Alaska · 1184 days ago · 7 km deep · 97 km away
  14. 1.9Andreanof Islands, Aleutian Islands, Alaska · 1183 days ago · 11 km deep · 52 km away
  15. 3.152 km S of Adak, Alaska · 1183 days ago · 35 km deep · 71 km away
  16. 2.0127 km SW of Adak, Alaska · 1183 days ago · 8 km deep · 46 km away
  17. 1.768 km SW of Adak, Alaska · 1183 days ago · 25 km deep · 17 km away
  18. 1.765 km SSE of Adak, Alaska · 1183 days ago · 5 km deep · 88 km away
  19. 2.763 km SSE of Adak, Alaska · 1183 days ago · 35 km deep · 91 km away
  20. 1.795 km WSW of Adak, Alaska · 1183 days ago · 27 km deep · 19 km away
  21. 1.6116 km SW of Adak, Alaska · 1182 days ago · 38 km deep · 34 km away
  22. 1.6Andreanof Islands, Aleutian Islands, Alaska · 1182 days ago · 24 km deep · 74 km away
  23. 1.8154 km WSW of Adak, Alaska · 1182 days ago · 66 km deep · 82 km away
  24. 1.588 km WSW of Adak, Alaska · 1182 days ago · 13 km deep · 12 km away
  25. 2.222 km SE of Adak, Alaska · 1182 days ago · 94 km deep · 92 km away
  26. 2.8169 km WSW of Adak, Alaska · 1182 days ago · 10 km deep · 93 km away
  27. 3.824 km SE of Adak, Alaska · 1182 days ago · 55 km deep · 87 km away
  28. 1.596 km W of Adak, Alaska · 1181 days ago · -2 km deep · 51 km away
  29. 2.8157 km WSW of Adak, Alaska · 1181 days ago · 30 km deep · 75 km away
  30. 3.456 km SW of Adak, Alaska · 1181 days ago · 45 km deep · 37 km away
  31. 1.759 km SSE of Adak, Alaska · 1180 days ago · 23 km deep · 98 km away
  32. 1.567 km SSE of Adak, Alaska · 1180 days ago · 22 km deep · 87 km away
  33. 2.064 km SW of Adak, Alaska · 1180 days ago · 20 km deep · 22 km away
  34. 2.6Andreanof Islands, Aleutian Islands, Alaska · 1180 days ago · 33 km deep · 77 km away
  35. 1.861 km SSW of Adak, Alaska · 1180 days ago · 45 km deep · 37 km away
  36. 2.051 km S of Adak, Alaska · 1180 days ago · 26 km deep · 75 km away
  37. 3.4175 km WSW of Adak, Alaska · 1180 days ago · 33 km deep · 100 km away
  38. 1.873 km WSW of Adak, Alaska · 1180 days ago · 24 km deep · 11 km away
  39. 1.6147 km W of Adak, Alaska · 1179 days ago · 12 km deep · 80 km away
  40. 1.6149 km WSW of Adak, Alaska · 1179 days ago · 8 km deep · 73 km away
  41. 1.770 km SSE of Adak, Alaska · 1179 days ago · 26 km deep · 88 km away
  42. 3.530 km SSW of Adak, Alaska · 1179 days ago · 54 km deep · 64 km away
  43. 3.2135 km WSW of Adak, Alaska · 1179 days ago · 30 km deep · 57 km away
  44. 2.071 km SSE of Adak, Alaska · 1179 days ago · 20 km deep · 94 km away
  45. 1.6Andreanof Islands, Aleutian Islands, Alaska · 1179 days ago · 21 km deep · 97 km away
  46. 1.6124 km W of Adak, Alaska · 1179 days ago · 13 km deep · 63 km away
  47. 1.573 km SSE of Adak, Alaska · 1179 days ago · 18 km deep · 95 km away
  48. 1.5172 km WSW of Adak, Alaska · 1179 days ago · 20 km deep · 95 km away
  49. 1.8100 km SW of Adak, Alaska · 1179 days ago · 26 km deep · 26 km away
  50. 1.5149 km WSW of Adak, Alaska · 1179 days ago · 8 km deep · 69 km away
  51. 1.7136 km SW of Adak, Alaska · 1178 days ago · 26 km deep · 54 km away
  52. 1.916 km NNW of Adak, Alaska · 1178 days ago · 173 km deep · 88 km away
  53. 1.547 km SW of Adak, Alaska · 1178 days ago · 42 km deep · 38 km away
  54. 2.7133 km SW of Adak, Alaska · 1177 days ago · 35 km deep · 51 km away
  55. 1.784 km WSW of Adak, Alaska · 1177 days ago · 25 km deep · 11 km away
  56. 1.597 km W of Adak, Alaska · 1177 days ago · -2 km deep · 53 km away
  57. 1.9128 km SW of Adak, Alaska · 1177 days ago · 22 km deep · 46 km away
  58. 1.8101 km W of Adak, Alaska · 1177 days ago · 4 km deep · 55 km away
  59. 1.779 km SW of Adak, Alaska · 1176 days ago · 44 km deep · 5 km away
  60. 2.6Andreanof Islands, Aleutian Islands, Alaska · 1176 days ago · 35 km deep · 44 km away

The first 60 of at least 201.

Before

  1. 2.757 km SSW of Adak, Alaska · 1187 days ago · 35 km deep · 37 km away
  2. 2.973 km W of Adak, Alaska · 1187 days ago · 106 km deep · 40 km away
  3. 1.9137 km WSW of Adak, Alaska · 1187 days ago · 13 km deep · 63 km away
  4. 1.561 km S of Adak, Alaska · 1188 days ago · 13 km deep · 78 km away
  5. 1.5133 km SW of Adak, Alaska · 1188 days ago · 22 km deep · 51 km away
  6. 1.6135 km SW of Adak, Alaska · 1188 days ago · 21 km deep · 53 km away
  7. 1.545 km SSW of Adak, Alaska · 1188 days ago · 42 km deep · 55 km away
  8. 1.856 km SSE of Adak, Alaska · 1188 days ago · 24 km deep · 90 km away
  9. 2.0115 km SW of Adak, Alaska · 1188 days ago · 25 km deep · 37 km away
  10. 2.1178 km WSW of Adak, Alaska · 1188 days ago · 21 km deep · 97 km away
  11. 1.8179 km WSW of Adak, Alaska · 1188 days ago · 19 km deep · 98 km away
  12. 1.643 km SSE of Adak, Alaska · 1188 days ago · 27 km deep · 86 km away
  13. 1.9Andreanof Islands, Aleutian Islands, Alaska · 1188 days ago · 85 km deep · 85 km away
  14. 1.9102 km SW of Adak, Alaska · 1189 days ago · 32 km deep · 21 km away
  15. 2.1118 km WSW of Adak, Alaska · 1189 days ago · 16 km deep · 40 km away
  16. 3.712 km ENE of Adak, Alaska · 1189 days ago · 116 km deep · 95 km away · felt by 1
  17. 3.261 km SSW of Adak, Alaska · 1189 days ago · 35 km deep · 43 km away
  18. 1.7Andreanof Islands, Aleutian Islands, Alaska · 1189 days ago · 43 km deep · 17 km away
  19. 1.965 km SW of Adak, Alaska · 1190 days ago · 62 km deep · 17 km away
  20. 1.9125 km WSW of Adak, Alaska · 1190 days ago · 12 km deep · 53 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000kerx (also filed as ak0238gidtck). Read Fri, Oct 2, 2026, 6:33 AM UTC.