Alaska earthquakes

M2.9 earthquake 69 km WNW of Atka, Alaska

A magnitude 2.9 earthquake struck 69 km WNW of Atka, Alaska on Thu, Mar 17, 2022, 11:58 PM HADT (08:58 UTC), 219 km (136 mi) below the surface.

A larger quake followed: M4.5 62 km NNW 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
2.9 (ML, local (Richter)), micro
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2022-03-18 08:58:39 UTC
Depth
219.3 km (136.2 mi), intermediate-depth
Epicenter
52.394° N, 175.170° 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
2.9ML, local (Richter)USGS National Earthquake Information CenterPreferred · Reviewed · ±0.097 · 14 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 15.4 km horizontally, 9.2 km in depth
Magnitude uncertainty
±0.10
Depth from
From location
Station coverage gap
141°
Stations used
34

Nearby

Within 100 km, magnitude 1.5 and up: 119 in the 60 days after this one and 64 in the 30 days before it.

After

  1. 1.765 km E of Adak, Alaska · 1658 days ago · 68 km deep · 73 km away
  2. 2.627 km SW of Atka, Alaska · 1657 days ago · 6 km deep · 63 km away
  3. 3.9101 km NNW of Atka, Alaska · 1657 days ago · 223 km deep · 74 km away
  4. 1.722 km SE of Atka, Alaska · 1656 days ago · 1 km deep · 89 km away
  5. 1.937 km SSW of Atka, Alaska · 1656 days ago · 65 km deep · 72 km away
  6. 1.530 km E of Adak, Alaska · 1655 days ago · 86 km deep · 88 km away
  7. 2.072 km WSW of Atka, Alaska · 1655 days ago · 58 km deep · 60 km away
  8. 3.257 km SSW of Atka, Alaska · 1654 days ago · 35 km deep · 89 km away
  9. 1.860 km SW of Atka, Alaska · 1653 days ago · 46 km deep · 69 km away
  10. 2.230 km ESE of Adak, Alaska · 1653 days ago · 73 km deep · 98 km away
  11. 2.253 km ENE of Adak, Alaska · 1653 days ago · 146 km deep · 62 km away
  12. 2.186 km SW of Atka, Alaska · 1652 days ago · 26 km deep · 83 km away
  13. 2.417 km N of Atka, Alaska · 1652 days ago · 168 km deep · 66 km away
  14. 2.578 km E of Adak, Alaska · 1651 days ago · 222 km deep · 64 km away
  15. 1.592 km SW of Atka, Alaska · 1651 days ago · 26 km deep · 82 km away
  16. 1.629 km S of Atka, Alaska · 1651 days ago · 67 km deep · 83 km away
  17. 1.762 km ESE of Adak, Alaska · 1651 days ago · 45 km deep · 97 km away
  18. 2.944 km NE of Adak, Alaska · 1650 days ago · 204 km deep · 72 km away
  19. 1.975 km E of Adak, Alaska · 1650 days ago · 64 km deep · 74 km away
  20. 3.320 km NNE of Atka, Alaska · 1649 days ago · 197 km deep · 75 km away
  21. 1.664 km ESE of Adak, Alaska · 1648 days ago · 36 km deep · 94 km away
  22. 2.615 km WSW of Atka, Alaska · 1648 days ago · 178 km deep · 59 km away
  23. 3.287 km SW of Atka, Alaska · 1648 days ago · 24 km deep · 86 km away
  24. 1.880 km ENE of Adak, Alaska · 1648 days ago · 17 km deep · 41 km away
  25. 1.72 km SSW of Atka, Alaska · 1647 days ago · 11 km deep · 70 km away
  26. 3.834 km NW of Atka, Alaska · 1647 days ago · 186 km deep · 47 km away
  27. 1.955 km E of Adak, Alaska · 1646 days ago · 66 km deep · 78 km away
  28. 2.977 km WNW of Atka, Alaska · 1646 days ago · 257 km deep · 13 km away
  29. 1.882 km ENE of Adak, Alaska · 1646 days ago · 13 km deep · 45 km away
  30. 1.781 km ENE of Adak, Alaska · 1646 days ago · 13 km deep · 41 km away
  31. 1.973 km SW of Atka, Alaska · 1646 days ago · 42 km deep · 70 km away
  32. 1.722 km S of Atka, Alaska · 1645 days ago · 70 km deep · 77 km away
  33. 1.741 km SW of Atka, Alaska · 1645 days ago · 72 km deep · 58 km away
  34. 1.632 km SE of Atka, Alaska · 1645 days ago · 27 km deep · 100 km away
  35. 1.927 km E of Adak, Alaska · 1645 days ago · 73 km deep · 96 km away
  36. 1.768 km ESE of Adak, Alaska · 1645 days ago · 14 km deep · 79 km away
  37. 1.927 km SSE of Atka, Alaska · 1644 days ago · 64 km deep · 92 km away
  38. 1.825 km S of Atka, Alaska · 1644 days ago · 57 km deep · 80 km away
  39. 1.628 km SSW of Atka, Alaska · 1643 days ago · 59 km deep · 69 km away
  40. 3.3Andreanof Islands, Aleutian Islands, Alaska · 1643 days ago · 245 km deep · 11 km away
  41. 2.665 km ENE of Adak, Alaska · 1642 days ago · 199 km deep · 53 km away
  42. 3.462 km SSW of Atka, Alaska · 1641 days ago · 35 km deep · 93 km away
  43. 3.169 km SW of Atka, Alaska · 1640 days ago · 67 km deep · 73 km away
  44. 2.687 km SW of Atka, Alaska · 1639 days ago · 25 km deep · 92 km away
  45. 2.747 km ENE of Adak, Alaska · 1639 days ago · 133 km deep · 71 km away
  46. 2.669 km ESE of Adak, Alaska · 1639 days ago · 33 km deep · 98 km away
  47. 2.140 km SW of Atka, Alaska · 1639 days ago · 148 km deep · 70 km away
  48. 1.965 km WSW of Atka, Alaska · 1638 days ago · 65 km deep · 52 km away
  49. 4.056 km SW of Atka, Alaska · 1638 days ago · 35 km deep · 77 km away
  50. 1.629 km SSW of Atka, Alaska · 1637 days ago · 62 km deep · 77 km away
  51. 3.09 km SW of Atka, Alaska · 1636 days ago · 35 km deep · 65 km away
  52. 1.619 km SW of Atka, Alaska · 1636 days ago · 10 km deep · 63 km away
  53. 2.345 km E of Adak, Alaska · 1635 days ago · 79 km deep · 77 km away
  54. 1.936 km ESE of Adak, Alaska · 1635 days ago · 57 km deep · 99 km away
  55. 1.880 km ENE of Adak, Alaska · 1635 days ago · 15 km deep · 42 km away
  56. 2.337 km ENE of Adak, Alaska · 1634 days ago · 127 km deep · 78 km away
  57. 1.8Andreanof Islands, Aleutian Islands, Alaska · 1634 days ago · 20 km deep · 76 km away
  58. 2.738 km SSE of Atka, Alaska · 1634 days ago · 10 km deep · 98 km away
  59. 1.793 km SW of Atka, Alaska · 1634 days ago · 17 km deep · 99 km away
  60. 1.9101 km ESE of Adak, Alaska · 1634 days ago · 44 km deep · 95 km away

The first 60 of 119.

Before

  1. 2.333 km WNW of Atka, Alaska · 1659 days ago · 130 km deep · 36 km away
  2. 2.058 km W of Atka, Alaska · 1659 days ago · 130 km deep · 21 km away
  3. 2.270 km ENE of Adak, Alaska · 1659 days ago · 149 km deep · 50 km away
  4. 1.655 km WSW of Atka, Alaska · 1659 days ago · 13 km deep · 42 km away
  5. 2.062 km ESE of Adak, Alaska · 1660 days ago · 48 km deep · 90 km away
  6. 1.9101 km ESE of Adak, Alaska · 1660 days ago · 47 km deep · 98 km away
  7. 2.071 km ESE of Adak, Alaska · 1660 days ago · 36 km deep · 100 km away
  8. 3.7103 km NE of Adak, Alaska · 1661 days ago · 245 km deep · 46 km away
  9. 2.665 km E of Adak, Alaska · 1661 days ago · 187 km deep · 58 km away
  10. 1.759 km E of Adak, Alaska · 1662 days ago · 71 km deep · 79 km away
  11. 2.047 km E of Adak, Alaska · 1662 days ago · 123 km deep · 80 km away
  12. 2.440 km NNW of Atka, Alaska · 1662 days ago · 178 km deep · 53 km away
  13. 2.150 km NE of Adak, Alaska · 1663 days ago · 146 km deep · 66 km away
  14. 3.324 km SSE of Atka, Alaska · 1663 days ago · 172 km deep · 88 km away
  15. 4.195 km ESE of Adak, Alaska · 1663 days ago · 45 km deep · 85 km away
  16. 1.775 km SSW of Atka, Alaska · 1663 days ago · 42 km deep · 89 km away
  17. 3.6129 km NW of Atka, Alaska · 1663 days ago · 194 km deep · 70 km away
  18. 2.07 km W of Atka, Alaska · 1663 days ago · 170 km deep · 64 km away
  19. 1.880 km ENE of Adak, Alaska · 1665 days ago · 13 km deep · 45 km away
  20. 2.082 km ENE of Adak, Alaska · 1665 days ago · 13 km deep · 39 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000h73e (also filed as ak0223jhhpgb). Read Thu, Oct 1, 2026, 3:06 PM UTC.