Alaska earthquakes

M3.0 earthquake 74 km SW of Adak, Alaska

A magnitude 3.0 earthquake struck 74 km SW of Adak, Alaska on Sat, Dec 31, 2022, 7:37 PM HAST (05:37 UTC), 34 km (21 mi) below the surface.

A larger quake followed: M5.0 121 km WSW of Adak, Alaska. This one was a foreshock.

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Map

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
2023-01-01 05:37:17 UTC
Depth
34.0 km (21.1 mi), shallow
Epicenter
51.461° N, 177.480° 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 3.0 km horizontally, 10.5 km in depth
Magnitude uncertainty
±0.12
Depth from
From location
Station coverage gap
208°, poorly surrounded by stations
Stations used
23

Nearby

Within 100 km, magnitude 1.5 and up: at least 200 in the 60 days after this one and 153 in the 30 days before it.

After

  1. 3.091 km SSE of Adak, Alaska · 1369 days ago · 10 km deep · 97 km away
  2. 2.192 km SSE of Adak, Alaska · 1369 days ago · 13 km deep · 95 km away
  3. 3.087 km SSE of Adak, Alaska · 1369 days ago · 10 km deep · 90 km away
  4. 2.058 km SSE of Adak, Alaska · 1369 days ago · 18 km deep · 91 km away
  5. 2.958 km S of Adak, Alaska · 1369 days ago · 35 km deep · 69 km away
  6. 1.756 km WSW of Adak, Alaska · 1369 days ago · 26 km deep · 19 km away
  7. 2.0Andreanof Islands, Aleutian Islands, Alaska · 1369 days ago · 14 km deep · 81 km away
  8. 2.1106 km WSW of Adak, Alaska · 1368 days ago · 13 km deep · 35 km away
  9. 3.4102 km WSW of Adak, Alaska · 1368 days ago · 33 km deep · 30 km away
  10. 2.048 km SSW of Adak, Alaska · 1368 days ago · 3 km deep · 35 km away
  11. 2.0146 km WSW of Adak, Alaska · 1367 days ago · 22 km deep · 74 km away
  12. 2.1Andreanof Islands, Aleutian Islands, Alaska · 1367 days ago · 7 km deep · 91 km away
  13. 1.641 km SSE of Adak, Alaska · 1367 days ago · 28 km deep · 76 km away
  14. 1.8128 km WSW of Adak, Alaska · 1367 days ago · 13 km deep · 68 km away
  15. 1.9159 km WSW of Adak, Alaska · 1367 days ago · 23 km deep · 92 km away
  16. 1.6Andreanof Islands, Aleutian Islands, Alaska · 1367 days ago · 24 km deep · 85 km away
  17. 1.595 km W of Adak, Alaska · 1367 days ago · -2 km deep · 59 km away
  18. 1.759 km SE of Adak, Alaska · 1366 days ago · 24 km deep · 92 km away
  19. 1.899 km SW of Adak, Alaska · 1366 days ago · 26 km deep · 31 km away
  20. 1.553 km SE of Adak, Alaska · 1366 days ago · 24 km deep · 99 km away
  21. 2.1117 km WSW of Adak, Alaska · 1366 days ago · 19 km deep · 47 km away
  22. 1.686 km WSW of Adak, Alaska · 1366 days ago · 26 km deep · 15 km away
  23. 2.3157 km WSW of Adak, Alaska · 1366 days ago · 21 km deep · 84 km away
  24. 2.529 km SSE of Adak, Alaska · 1365 days ago · 45 km deep · 72 km away
  25. 2.1132 km WSW of Adak, Alaska · 1365 days ago · 14 km deep · 60 km away
  26. 2.029 km W of Adak, Alaska · 1364 days ago · 6 km deep · 60 km away
  27. 3.317 km SE of Adak, Alaska · 1364 days ago · 70 km deep · 80 km away
  28. 3.7Andreanof Islands, Aleutian Islands, Alaska · 1363 days ago · 21 km deep · 89 km away
  29. 2.767 km SSE of Adak, Alaska · 1363 days ago · 35 km deep · 81 km away
  30. 2.0151 km WSW of Adak, Alaska · 1363 days ago · 19 km deep · 85 km away
  31. 1.856 km SSE of Adak, Alaska · 1362 days ago · 26 km deep · 77 km away
  32. 1.860 km SSW of Adak, Alaska · 1362 days ago · 38 km deep · 34 km away
  33. 1.750 km SSE of Adak, Alaska · 1362 days ago · 24 km deep · 69 km away
  34. 1.641 km SSE of Adak, Alaska · 1362 days ago · 31 km deep · 78 km away
  35. 2.0126 km WSW of Adak, Alaska · 1361 days ago · 6 km deep · 61 km away
  36. 1.964 km SE of Adak, Alaska · 1361 days ago · 19 km deep · 98 km away
  37. 1.753 km SSW of Adak, Alaska · 1361 days ago · 13 km deep · 47 km away
  38. 3.5130 km WSW of Adak, Alaska · 1361 days ago · 18 km deep · 61 km away
  39. 1.868 km SSW of Adak, Alaska · 1361 days ago · 26 km deep · 35 km away
  40. 1.768 km S of Adak, Alaska · 1361 days ago · 26 km deep · 69 km away
  41. 2.1105 km WSW of Adak, Alaska · 1360 days ago · 46 km deep · 34 km away
  42. 2.0144 km W of Adak, Alaska · 1360 days ago · 12 km deep · 88 km away
  43. 1.8Andreanof Islands, Aleutian Islands, Alaska · 1360 days ago · 13 km deep · 64 km away
  44. 1.663 km SSE of Adak, Alaska · 1360 days ago · 22 km deep · 90 km away
  45. 1.854 km S of Adak, Alaska · 1360 days ago · 26 km deep · 51 km away
  46. 1.747 km SW of Adak, Alaska · 1360 days ago · 49 km deep · 28 km away
  47. 2.867 km SSE of Adak, Alaska · 1360 days ago · 35 km deep · 89 km away
  48. 1.987 km W of Adak, Alaska · 1360 days ago · 4 km deep · 53 km away
  49. 2.854 km S of Adak, Alaska · 1360 days ago · 35 km deep · 59 km away
  50. 3.9141 km SW of Adak, Alaska · 1360 days ago · 35 km deep · 67 km away
  51. 2.640 km WNW of Adak, Alaska · 1359 days ago · 109 km deep · 59 km away
  52. 1.650 km SSE of Adak, Alaska · 1359 days ago · 19 km deep · 86 km away
  53. 2.6145 km SW of Adak, Alaska · 1359 days ago · 10 km deep · 73 km away
  54. 2.1128 km WSW of Adak, Alaska · 1359 days ago · 14 km deep · 69 km away
  55. 1.8Andreanof Islands, Aleutian Islands, Alaska · 1358 days ago · 4 km deep · 54 km away
  56. 3.1Andreanof Islands, Aleutian Islands, Alaska · 1358 days ago · 39 km deep · 41 km away
  57. 3.1103 km SSW of Adak, Alaska · 1358 days ago · 35 km deep · 40 km away
  58. 2.176 km SW of Adak, Alaska · 1358 days ago · 35 km deep · 5 km away
  59. 3.5101 km SSW of Adak, Alaska · 1357 days ago · 35 km deep · 40 km away
  60. 2.9101 km SSW of Adak, Alaska · 1357 days ago · 35 km deep · 39 km away

The first 60 of at least 200.

Before

  1. 2.913 km NE of Adak, Alaska · 1370 days ago · 123 km deep · 87 km away
  2. 1.940 km SE of Adak, Alaska · 1370 days ago · 59 km deep · 95 km away
  3. 2.0Andreanof Islands, Aleutian Islands, Alaska · 1370 days ago · 67 km deep · 74 km away
  4. 1.99 km SSE of Adak, Alaska · 1371 days ago · 70 km deep · 72 km away
  5. 1.656 km WSW of Adak, Alaska · 1371 days ago · 18 km deep · 30 km away
  6. 3.722 km SW of Adak, Alaska · 1371 days ago · 73 km deep · 52 km away
  7. 2.653 km WSW of Adak, Alaska · 1371 days ago · 78 km deep · 29 km away
  8. 3.763 km SE of Adak, Alaska · 1371 days ago · 35 km deep · 96 km away
  9. 2.151 km SE of Adak, Alaska · 1371 days ago · 30 km deep · 89 km away
  10. 2.7111 km WSW of Adak, Alaska · 1372 days ago · 32 km deep · 46 km away
  11. 2.126 km WSW of Adak, Alaska · 1372 days ago · 78 km deep · 49 km away
  12. 2.1128 km WSW of Adak, Alaska · 1373 days ago · 24 km deep · 56 km away
  13. 2.419 km NNW of Adak, Alaska · 1373 days ago · 169 km deep · 81 km away
  14. 1.847 km SSW of Adak, Alaska · 1373 days ago · 24 km deep · 41 km away
  15. 1.783 km W of Adak, Alaska · 1373 days ago · 8 km deep · 47 km away
  16. 1.8Andreanof Islands, Aleutian Islands, Alaska · 1373 days ago · 13 km deep · 48 km away
  17. 1.7Andreanof Islands, Aleutian Islands, Alaska · 1374 days ago · 42 km deep · 72 km away
  18. 3.494 km SW of Adak, Alaska · 1374 days ago · 42 km deep · 20 km away
  19. 1.596 km W of Adak, Alaska · 1374 days ago · -2 km deep · 57 km away
  20. 2.2148 km WSW of Adak, Alaska · 1374 days ago · 24 km deep · 76 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000j5a0 (also filed as ak0231qqh79). Read Thu, Oct 1, 2026, 11:33 AM UTC.