Alaska earthquakes

M3.0 earthquake 75 km WSW of Adak, Alaska

A magnitude 3.0 earthquake struck 75 km WSW of Adak, Alaska on Mon, Apr 4, 2022, 5:20 AM HADT (14:20 UTC), 74 km (46 mi) below the surface.

A larger quake followed: M5.0 129 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
3.0 (ML, local (Richter)), minor
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2022-04-04 14:20:19 UTC
Depth
74.0 km (46.0 mi), intermediate-depth
Epicenter
51.588° N, 177.629° 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 · ±0.105 · 12 stations
2.4ML, 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 7.9 km horizontally, 7.7 km in depth
Magnitude uncertainty
±0.10
Depth from
From location
Station coverage gap
195°, poorly surrounded by stations
Stations used
29

Nearby

Within 100 km, magnitude 1.5 and up: at least 200 in the 60 days after this one and 136 in the 30 days before it.

After

  1. 1.892 km WSW of Adak, Alaska · 1643 days ago · 13 km deep · 18 km away
  2. 1.8Andreanof Islands, Aleutian Islands, Alaska · 1642 days ago · 14 km deep · 16 km away
  3. 2.1138 km SW of Adak, Alaska · 1642 days ago · 1 km deep · 69 km away
  4. 1.985 km WSW of Adak, Alaska · 1642 days ago · 43 km deep · 12 km away
  5. 2.1171 km WSW of Adak, Alaska · 1642 days ago · 24 km deep · 95 km away
  6. 3.1113 km WSW of Adak, Alaska · 1642 days ago · 10 km deep · 38 km away
  7. 1.767 km SSW of Adak, Alaska · 1641 days ago · 23 km deep · 64 km away
  8. 1.8109 km SSW of Adak, Alaska · 1641 days ago · 49 km deep · 85 km away
  9. 1.6128 km WSW of Adak, Alaska · 1641 days ago · 24 km deep · 52 km away
  10. 1.5132 km WSW of Adak, Alaska · 1640 days ago · 47 km deep · 57 km away
  11. 1.7124 km WSW of Adak, Alaska · 1640 days ago · 15 km deep · 49 km away
  12. 1.6111 km WSW of Adak, Alaska · 1640 days ago · 46 km deep · 37 km away
  13. 2.7149 km WSW of Adak, Alaska · 1639 days ago · 32 km deep · 74 km away
  14. 1.520 km SE of Adak, Alaska · 1639 days ago · 63 km deep · 83 km away
  15. 1.8Andreanof Islands, Aleutian Islands, Alaska · 1639 days ago · 25 km deep · 67 km away
  16. 1.7159 km WSW of Adak, Alaska · 1639 days ago · 13 km deep · 87 km away
  17. 1.872 km WSW of Adak, Alaska · 1638 days ago · 79 km deep · 17 km away
  18. 1.739 km S of Adak, Alaska · 1638 days ago · 37 km deep · 63 km away
  19. 1.6145 km WSW of Adak, Alaska · 1637 days ago · 15 km deep · 72 km away
  20. 1.794 km WSW of Adak, Alaska · 1637 days ago · 14 km deep · 19 km away
  21. 3.2115 km WSW of Adak, Alaska · 1637 days ago · 16 km deep · 40 km away
  22. 1.755 km WSW of Adak, Alaska · 1637 days ago · 70 km deep · 20 km away
  23. 1.6114 km WSW of Adak, Alaska · 1636 days ago · 13 km deep · 39 km away
  24. 1.546 km SW of Adak, Alaska · 1636 days ago · 44 km deep · 38 km away
  25. 1.5124 km WSW of Adak, Alaska · 1636 days ago · 26 km deep · 49 km away
  26. 2.9133 km WSW of Adak, Alaska · 1635 days ago · 28 km deep · 59 km away
  27. 1.635 km SSE of Adak, Alaska · 1635 days ago · 50 km deep · 86 km away
  28. 1.641 km S of Adak, Alaska · 1635 days ago · 24 km deep · 66 km away
  29. 1.662 km SW of Adak, Alaska · 1634 days ago · 34 km deep · 30 km away
  30. 1.539 km SSE of Adak, Alaska · 1634 days ago · 31 km deep · 88 km away
  31. 1.660 km SSE of Adak, Alaska · 1634 days ago · 17 km deep · 98 km away
  32. 1.8128 km WSW of Adak, Alaska · 1634 days ago · 13 km deep · 53 km away
  33. 1.640 km SSE of Adak, Alaska · 1634 days ago · 35 km deep · 88 km away
  34. 1.763 km SSW of Adak, Alaska · 1634 days ago · 39 km deep · 48 km away
  35. 2.0153 km W of Adak, Alaska · 1634 days ago · 77 km deep · 83 km away
  36. 1.745 km SW of Adak, Alaska · 1633 days ago · 57 km deep · 41 km away
  37. 1.781 km WSW of Adak, Alaska · 1633 days ago · 40 km deep · 6 km away
  38. 2.279 km SW of Adak, Alaska · 1633 days ago · 35 km deep · 24 km away
  39. 2.1144 km SW of Adak, Alaska · 1632 days ago · 26 km deep · 71 km away
  40. 3.464 km SSW of Adak, Alaska · 1632 days ago · 35 km deep · 55 km away
  41. 1.678 km W of Adak, Alaska · 1632 days ago · 5 km deep · 30 km away
  42. 3.395 km SW of Adak, Alaska · 1632 days ago · 35 km deep · 36 km away
  43. 3.094 km W of Adak, Alaska · 1631 days ago · 115 km deep · 37 km away
  44. 2.7110 km WSW of Adak, Alaska · 1631 days ago · 27 km deep · 35 km away
  45. 1.939 km SSE of Adak, Alaska · 1631 days ago · 51 km deep · 80 km away
  46. 1.861 km SW of Adak, Alaska · 1631 days ago · 53 km deep · 35 km away
  47. 3.7122 km SW of Adak, Alaska · 1630 days ago · 34 km deep · 53 km away
  48. 2.045 km SW of Adak, Alaska · 1630 days ago · 50 km deep · 39 km away
  49. 2.3116 km WSW of Adak, Alaska · 1629 days ago · 37 km deep · 43 km away
  50. 1.857 km S of Adak, Alaska · 1628 days ago · 15 km deep · 75 km away
  51. 1.745 km S of Adak, Alaska · 1627 days ago · 27 km deep · 77 km away
  52. 2.4152 km WSW of Adak, Alaska · 1627 days ago · 71 km deep · 80 km away
  53. 1.911 km E of Adak, Alaska · 1626 days ago · 85 km deep · 86 km away
  54. 1.754 km SW of Adak, Alaska · 1625 days ago · 39 km deep · 39 km away
  55. 1.758 km SW of Adak, Alaska · 1625 days ago · 57 km deep · 21 km away
  56. 1.653 km SSE of Adak, Alaska · 1625 days ago · 24 km deep · 93 km away
  57. 3.0132 km W of Adak, Alaska · 1624 days ago · 151 km deep · 82 km away
  58. 1.57 km ESE of Adak, Alaska · 1624 days ago · 84 km deep · 81 km away
  59. 1.589 km W of Adak, Alaska · 1624 days ago · 3 km deep · 36 km away
  60. 1.9Andreanof Islands, Aleutian Islands, Alaska · 1624 days ago · 21 km deep · 71 km away

The first 60 of at least 200.

Before

  1. 2.067 km WSW of Adak, Alaska · 1644 days ago · 56 km deep · 8 km away
  2. 1.9150 km WSW of Adak, Alaska · 1646 days ago · 24 km deep · 76 km away
  3. 1.9131 km SW of Adak, Alaska · 1646 days ago · 13 km deep · 59 km away
  4. 1.8105 km SW of Adak, Alaska · 1646 days ago · 19 km deep · 36 km away
  5. 1.8132 km WSW of Adak, Alaska · 1646 days ago · 53 km deep · 58 km away
  6. 1.536 km SSW of Adak, Alaska · 1646 days ago · 35 km deep · 61 km away
  7. 2.034 km WSW of Adak, Alaska · 1646 days ago · 80 km deep · 41 km away
  8. 1.792 km WSW of Adak, Alaska · 1646 days ago · 12 km deep · 20 km away
  9. 1.931 km SW of Adak, Alaska · 1646 days ago · 61 km deep · 45 km away
  10. 1.630 km ESE of Adak, Alaska · 1646 days ago · 70 km deep · 97 km away
  11. 1.627 km SW of Adak, Alaska · 1647 days ago · 66 km deep · 50 km away
  12. 2.0116 km SW of Adak, Alaska · 1647 days ago · 26 km deep · 43 km away
  13. 2.570 km SW of Adak, Alaska · 1647 days ago · 40 km deep · 27 km away
  14. 1.927 km E of Adak, Alaska · 1647 days ago · 73 km deep · 100 km away
  15. 3.8130 km WSW of Adak, Alaska · 1647 days ago · 46 km deep · 55 km away
  16. 2.0136 km SW of Adak, Alaska · 1647 days ago · 22 km deep · 63 km away
  17. 1.653 km S of Adak, Alaska · 1648 days ago · 44 km deep · 64 km away
  18. 2.1103 km W of Adak, Alaska · 1648 days ago · 133 km deep · 36 km away
  19. 1.690 km SW of Adak, Alaska · 1648 days ago · 28 km deep · 27 km away
  20. 1.9135 km SW of Adak, Alaska · 1648 days ago · 22 km deep · 63 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000gzmx (also filed as ak0224boz0q8). Read Sat, Oct 3, 2026, 8:01 PM UTC.