Alaska earthquakes

M3.2 earthquake 69 km SSE of Atka, Alaska

A magnitude 3.2 earthquake struck 69 km SSE of Atka, Alaska on Tue, Sep 20, 2022, 7:46 PM HADT (04:46 UTC), 35 km (22 mi) below the surface.

A larger quake followed: M4.7 Andreanof Islands, Aleutian Islands, 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
3.2 (ML, local (Richter)), minor
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2022-09-21 04:46:13 UTC
Depth
35.0 km (21.7 mi), shallow
Epicenter
51.645° N, 173.737° 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
3.2ML, local (Richter)USGS National Earthquake Information CenterPreferred · Reviewed · ±0.148 · 6 stations
3.0ML, 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 7.7 km horizontally, 2.0 km in depth
Magnitude uncertainty
±0.15
Depth from
Operator assigned
Station coverage gap
268°, poorly surrounded by stations
Stations used
16

Nearby

Within 100 km, magnitude 1.5 and up: 148 in the 60 days after this one and 63 in the 30 days before it.

After

  1. 2.157 km SSW of Atka, Alaska · 1472 days ago · 23 km deep · 52 km away
  2. 2.7143 km S of Atka, Alaska · 1470 days ago · 10 km deep · 80 km away
  3. 2.956 km S of Atka, Alaska · 1468 days ago · 35 km deep · 32 km away
  4. 2.054 km SSW of Atka, Alaska · 1468 days ago · 42 km deep · 62 km away
  5. 1.732 km W of Atka, Alaska · 1468 days ago · 23 km deep · 91 km away
  6. 1.679 km SSW of Atka, Alaska · 1468 days ago · 13 km deep · 67 km away
  7. 3.2Andreanof Islands, Aleutian Islands, Alaska · 1467 days ago · 29 km deep · 32 km away
  8. 2.5131 km S of Atka, Alaska · 1467 days ago · 10 km deep · 69 km away
  9. 2.3146 km S of Atka, Alaska · 1466 days ago · 10 km deep · 93 km away
  10. 2.043 km SW of Atka, Alaska · 1466 days ago · 85 km deep · 71 km away
  11. 1.978 km SW of Atka, Alaska · 1465 days ago · 19 km deep · 90 km away
  12. 2.059 km SW of Atka, Alaska · 1465 days ago · 69 km deep · 82 km away
  13. 3.19 km SSW of Atka, Alaska · 1461 days ago · 170 km deep · 63 km away
  14. 3.074 km SSW of Atka, Alaska · 1461 days ago · 35 km deep · 65 km away
  15. 3.059 km S of Atka, Alaska · 1459 days ago · 35 km deep · 42 km away
  16. 3.186 km ESE of Atka, Alaska · 1458 days ago · 35 km deep · 56 km away
  17. 2.639 km S of Atka, Alaska · 1458 days ago · 17 km deep · 34 km away
  18. 1.872 km SW of Atka, Alaska · 1457 days ago · 43 km deep · 87 km away
  19. 1.736 km SE of Atka, Alaska · 1457 days ago · 61 km deep · 37 km away
  20. 2.211 km NE of Atka, Alaska · 1457 days ago · 160 km deep · 74 km away
  21. 1.856 km ESE of Atka, Alaska · 1457 days ago · 63 km deep · 39 km away
  22. 2.126 km E of Atka, Alaska · 1456 days ago · 129 km deep · 57 km away
  23. 1.758 km SSW of Atka, Alaska · 1456 days ago · 49 km deep · 61 km away
  24. 3.248 km SSE of Atka, Alaska · 1456 days ago · 35 km deep · 21 km away
  25. 1.762 km E of Atka, Alaska · 1456 days ago · 101 km deep · 60 km away
  26. 2.850 km SSE of Atka, Alaska · 1456 days ago · 35 km deep · 19 km away
  27. 2.051 km S of Atka, Alaska · 1455 days ago · 25 km deep · 32 km away
  28. 1.963 km SSE of Atka, Alaska · 1455 days ago · 39 km deep · 8 km away
  29. 2.072 km SSE of Atka, Alaska · 1454 days ago · 21 km deep · 6 km away
  30. 1.954 km SSW of Atka, Alaska · 1454 days ago · 16 km deep · 63 km away
  31. 1.941 km WSW of Atka, Alaska · 1453 days ago · 45 km deep · 88 km away
  32. 1.772 km SW of Atka, Alaska · 1451 days ago · 26 km deep · 79 km away
  33. 1.636 km SSW of Atka, Alaska · 1451 days ago · 59 km deep · 57 km away
  34. 2.166 km ENE of Atka, Alaska · 1450 days ago · 8 km deep · 82 km away
  35. 1.948 km S of Atka, Alaska · 1450 days ago · 44 km deep · 34 km away
  36. 2.134 km ENE of Atka, Alaska · 1450 days ago · 6 km deep · 69 km away
  37. 2.6131 km SSE of Atka, Alaska · 1450 days ago · 35 km deep · 64 km away
  38. 2.142 km SSW of Atka, Alaska · 1449 days ago · 57 km deep · 49 km away
  39. 2.692 km SE of Atka, Alaska · 1448 days ago · 35 km deep · 44 km away
  40. 1.942 km E of Atka, Alaska · 1447 days ago · 13 km deep · 66 km away
  41. 2.951 km NE of Atka, Alaska · 1444 days ago · 187 km deep · 94 km away
  42. 1.911 km SSW of Atka, Alaska · 1444 days ago · 10 km deep · 63 km away
  43. 3.6119 km S of Atka, Alaska · 1443 days ago · 10 km deep · 68 km away
  44. 4.7Andreanof Islands, Aleutian Islands, Alaska · 1442 days ago · 18 km deep · 56 km away · felt by 1
  45. 1.688 km SW of Atka, Alaska · 1442 days ago · 43 km deep · 96 km away
  46. 1.986 km SSW of Atka, Alaska · 1442 days ago · 4 km deep · 73 km away
  47. 1.840 km S of Atka, Alaska · 1442 days ago · 29 km deep · 34 km away
  48. 2.847 km ESE of Atka, Alaska · 1441 days ago · 10 km deep · 46 km away
  49. 1.590 km SW of Atka, Alaska · 1441 days ago · 13 km deep · 91 km away
  50. 1.686 km SSW of Atka, Alaska · 1441 days ago · 20 km deep · 56 km away
  51. 2.579 km SSW of Atka, Alaska · 1441 days ago · 35 km deep · 71 km away
  52. 3.234 km ESE of Atka, Alaska · 1440 days ago · 187 km deep · 53 km away
  53. 1.854 km SSW of Atka, Alaska · 1440 days ago · 18 km deep · 51 km away
  54. 1.855 km SSW of Atka, Alaska · 1440 days ago · 20 km deep · 47 km away
  55. 1.9Andreanof Islands, Aleutian Islands, Alaska · 1440 days ago · 26 km deep · 52 km away
  56. 2.977 km SSW of Atka, Alaska · 1440 days ago · 35 km deep · 55 km away
  57. 1.982 km S of Atka, Alaska · 1440 days ago · 20 km deep · 50 km away
  58. 3.4Andreanof Islands, Aleutian Islands, Alaska · 1440 days ago · 35 km deep · 53 km away
  59. 2.1Andreanof Islands, Aleutian Islands, Alaska · 1436 days ago · 41 km deep · 46 km away
  60. 2.8Andreanof Islands, Aleutian Islands, Alaska · 1436 days ago · 35 km deep · 53 km away

The first 60 of 148.

Before

  1. 3.068 km E of Atka, Alaska · 1473 days ago · 11 km deep · 71 km away
  2. 4.087 km SSE of Atka, Alaska · 1474 days ago · 38 km deep · 19 km away
  3. 1.7Andreanof Islands, Aleutian Islands, Alaska · 1477 days ago · 8 km deep · 76 km away
  4. 3.653 km E of Atka, Alaska · 1478 days ago · 9 km deep · 75 km away
  5. 3.781 km SSE of Atka, Alaska · 1478 days ago · 45 km deep · 14 km away
  6. 3.5Andreanof Islands, Aleutian Islands, Alaska · 1478 days ago · 35 km deep · 67 km away
  7. 3.170 km SW of Atka, Alaska · 1478 days ago · 55 km deep · 81 km away
  8. 1.740 km ENE of Atka, Alaska · 1479 days ago · 4 km deep · 77 km away
  9. 2.155 km ENE of Atka, Alaska · 1479 days ago · 5 km deep · 80 km away
  10. 1.934 km S of Atka, Alaska · 1479 days ago · 61 km deep · 45 km away
  11. 2.488 km E of Atka, Alaska · 1480 days ago · 150 km deep · 83 km away
  12. 2.7144 km SE of Atka, Alaska · 1480 days ago · 10 km deep · 80 km away
  13. 2.649 km S of Atka, Alaska · 1480 days ago · 70 km deep · 43 km away
  14. 3.032 km NW of Atka, Alaska · 1480 days ago · 222 km deep · 99 km away
  15. 1.7Andreanof Islands, Aleutian Islands, Alaska · 1481 days ago · 26 km deep · 88 km away
  16. 1.856 km WSW of Atka, Alaska · 1482 days ago · 67 km deep · 86 km away
  17. 2.313 km SSW of Atka, Alaska · 1483 days ago · 100 km deep · 60 km away
  18. 2.318 km WSW of Atka, Alaska · 1483 days ago · 165 km deep · 73 km away
  19. 3.4Andreanof Islands, Aleutian Islands, Alaska · 1484 days ago · 35 km deep · 71 km away
  20. 3.231 km WNW of Atka, Alaska · 1484 days ago · 214 km deep · 97 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000ivdl (also filed as ak022c4oj8xk). Read Fri, Oct 2, 2026, 9:13 AM UTC.