Alaska earthquakes

M3.4 earthquake 94 km SW of Adak, Alaska

A magnitude 3.4 earthquake struck 94 km SW of Adak, Alaska on Tue, Dec 27, 2022, 7:32 AM HAST (17:32 UTC), 42 km (26 mi) below the surface.

A larger quake followed: M4.2 63 km WSW 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
3.4 (ML, local (Richter)), minor
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2022-12-27 17:32:45 UTC
Depth
41.6 km (25.8 mi), shallow
Epicenter
51.363° N, 177.722° 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
3.4ML, local (Richter)USGS National Earthquake Information CenterPreferred · Reviewed · ±0.091 · 16 stations
2.8ML, 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 2.9 km horizontally, 14.0 km in depth
Magnitude uncertainty
±0.09
Depth from
From location
Station coverage gap
206°, poorly surrounded by stations
Stations used
27

Nearby

Within 100 km, magnitude 1.5 and up: at least 199 in the 60 days after this one and 157 in the 30 days before it.

After

  1. 1.7Andreanof Islands, Aleutian Islands, Alaska · 1373 days ago · 42 km deep · 91 km away
  2. 1.8Andreanof Islands, Aleutian Islands, Alaska · 1373 days ago · 13 km deep · 53 km away
  3. 1.783 km W of Adak, Alaska · 1373 days ago · 8 km deep · 52 km away
  4. 1.847 km SSW of Adak, Alaska · 1373 days ago · 24 km deep · 59 km away
  5. 1.6153 km W of Adak, Alaska · 1373 days ago · 5 km deep · 91 km away
  6. 2.419 km NNW of Adak, Alaska · 1372 days ago · 169 km deep · 100 km away
  7. 2.1128 km WSW of Adak, Alaska · 1372 days ago · 24 km deep · 37 km away
  8. 2.126 km WSW of Adak, Alaska · 1372 days ago · 78 km deep · 69 km away
  9. 2.7111 km WSW of Adak, Alaska · 1372 days ago · 32 km deep · 34 km away
  10. 2.653 km WSW of Adak, Alaska · 1371 days ago · 78 km deep · 46 km away
  11. 3.722 km SW of Adak, Alaska · 1370 days ago · 73 km deep · 72 km away
  12. 1.656 km WSW of Adak, Alaska · 1370 days ago · 18 km deep · 45 km away
  13. 1.99 km SSE of Adak, Alaska · 1370 days ago · 70 km deep · 92 km away
  14. 2.0Andreanof Islands, Aleutian Islands, Alaska · 1370 days ago · 67 km deep · 61 km away
  15. 3.074 km SW of Adak, Alaska · 1369 days ago · 34 km deep · 20 km away
  16. 2.958 km S of Adak, Alaska · 1368 days ago · 35 km deep · 85 km away
  17. 1.756 km WSW of Adak, Alaska · 1368 days ago · 26 km deep · 39 km away
  18. 2.0Andreanof Islands, Aleutian Islands, Alaska · 1368 days ago · 14 km deep · 66 km away
  19. 2.1106 km WSW of Adak, Alaska · 1368 days ago · 13 km deep · 18 km away
  20. 3.4102 km WSW of Adak, Alaska · 1368 days ago · 33 km deep · 11 km away
  21. 2.048 km SSW of Adak, Alaska · 1367 days ago · 3 km deep · 53 km away
  22. 2.0146 km WSW of Adak, Alaska · 1367 days ago · 22 km deep · 54 km away
  23. 2.1Andreanof Islands, Aleutian Islands, Alaska · 1367 days ago · 7 km deep · 76 km away
  24. 2.1174 km WSW of Adak, Alaska · 1367 days ago · 39 km deep · 87 km away
  25. 1.641 km SSE of Adak, Alaska · 1366 days ago · 28 km deep · 95 km away
  26. 1.8128 km WSW of Adak, Alaska · 1366 days ago · 13 km deep · 56 km away
  27. 1.9159 km WSW of Adak, Alaska · 1366 days ago · 23 km deep · 75 km away
  28. 1.595 km W of Adak, Alaska · 1366 days ago · -2 km deep · 60 km away
  29. 1.899 km SW of Adak, Alaska · 1366 days ago · 26 km deep · 22 km away
  30. 2.1117 km WSW of Adak, Alaska · 1366 days ago · 19 km deep · 31 km away
  31. 1.686 km WSW of Adak, Alaska · 1366 days ago · 26 km deep · 13 km away
  32. 2.3157 km WSW of Adak, Alaska · 1365 days ago · 21 km deep · 65 km away
  33. 2.529 km SSE of Adak, Alaska · 1365 days ago · 45 km deep · 92 km away
  34. 2.1132 km WSW of Adak, Alaska · 1364 days ago · 14 km deep · 42 km away
  35. 2.029 km W of Adak, Alaska · 1363 days ago · 6 km deep · 78 km away
  36. 3.317 km SE of Adak, Alaska · 1363 days ago · 70 km deep · 100 km away
  37. 2.767 km SSE of Adak, Alaska · 1363 days ago · 35 km deep · 96 km away
  38. 2.0151 km WSW of Adak, Alaska · 1362 days ago · 19 km deep · 68 km away
  39. 1.856 km SSE of Adak, Alaska · 1362 days ago · 26 km deep · 94 km away
  40. 1.860 km SSW of Adak, Alaska · 1362 days ago · 38 km deep · 49 km away
  41. 1.750 km SSE of Adak, Alaska · 1362 days ago · 24 km deep · 86 km away
  42. 1.641 km SSE of Adak, Alaska · 1361 days ago · 31 km deep · 96 km away
  43. 2.0126 km WSW of Adak, Alaska · 1361 days ago · 6 km deep · 46 km away
  44. 1.753 km SSW of Adak, Alaska · 1361 days ago · 13 km deep · 64 km away
  45. 3.5130 km WSW of Adak, Alaska · 1361 days ago · 18 km deep · 43 km away
  46. 1.868 km SSW of Adak, Alaska · 1360 days ago · 26 km deep · 48 km away
  47. 1.768 km S of Adak, Alaska · 1360 days ago · 26 km deep · 83 km away
  48. 2.1105 km WSW of Adak, Alaska · 1360 days ago · 46 km deep · 18 km away
  49. 2.0144 km W of Adak, Alaska · 1360 days ago · 12 km deep · 76 km away
  50. 1.8Andreanof Islands, Aleutian Islands, Alaska · 1360 days ago · 13 km deep · 52 km away
  51. 1.854 km S of Adak, Alaska · 1360 days ago · 26 km deep · 68 km away
  52. 1.747 km SW of Adak, Alaska · 1360 days ago · 49 km deep · 48 km away
  53. 1.987 km W of Adak, Alaska · 1359 days ago · 4 km deep · 57 km away
  54. 2.854 km S of Adak, Alaska · 1359 days ago · 35 km deep · 76 km away
  55. 3.9141 km SW of Adak, Alaska · 1359 days ago · 35 km deep · 47 km away
  56. 2.640 km WNW of Adak, Alaska · 1359 days ago · 109 km deep · 76 km away
  57. 2.6145 km SW of Adak, Alaska · 1358 days ago · 10 km deep · 55 km away
  58. 2.1128 km WSW of Adak, Alaska · 1358 days ago · 14 km deep · 58 km away
  59. 1.8Andreanof Islands, Aleutian Islands, Alaska · 1358 days ago · 4 km deep · 58 km away
  60. 3.1Andreanof Islands, Aleutian Islands, Alaska · 1358 days ago · 39 km deep · 37 km away

The first 60 of at least 199.

Before

  1. 1.596 km W of Adak, Alaska · 1373 days ago · -2 km deep · 57 km away
  2. 2.2148 km WSW of Adak, Alaska · 1373 days ago · 24 km deep · 56 km away
  3. 1.890 km W of Adak, Alaska · 1374 days ago · 7 km deep · 57 km away
  4. 2.139 km SSE of Adak, Alaska · 1374 days ago · 32 km deep · 97 km away
  5. 3.064 km SSE of Adak, Alaska · 1375 days ago · 35 km deep · 99 km away
  6. 1.980 km WSW of Adak, Alaska · 1376 days ago · 44 km deep · 19 km away
  7. 2.297 km W of Adak, Alaska · 1376 days ago · 94 km deep · 51 km away
  8. 2.5174 km WSW of Adak, Alaska · 1376 days ago · 30 km deep · 84 km away
  9. 2.5Andreanof Islands, Aleutian Islands, Alaska · 1376 days ago · 13 km deep · 79 km away
  10. 3.4182 km WSW of Adak, Alaska · 1376 days ago · 29 km deep · 92 km away
  11. 1.982 km WSW of Adak, Alaska · 1376 days ago · 24 km deep · 29 km away
  12. 2.085 km SW of Adak, Alaska · 1376 days ago · 25 km deep · 9 km away
  13. 2.096 km W of Adak, Alaska · 1376 days ago · -1 km deep · 57 km away
  14. 2.1129 km SW of Adak, Alaska · 1376 days ago · 21 km deep · 35 km away
  15. 2.1144 km W of Adak, Alaska · 1376 days ago · 12 km deep · 76 km away
  16. 2.1123 km WSW of Adak, Alaska · 1376 days ago · 51 km deep · 35 km away
  17. 1.696 km W of Adak, Alaska · 1377 days ago · -2 km deep · 57 km away
  18. 1.8101 km SW of Adak, Alaska · 1377 days ago · 21 km deep · 17 km away
  19. 2.0132 km WSW of Adak, Alaska · 1377 days ago · 14 km deep · 62 km away
  20. 2.095 km W of Adak, Alaska · 1377 days ago · 2 km deep · 59 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000j48e (also filed as ak022glbbm0a). Read Thu, Oct 1, 2026, 2:38 AM UTC.