Alaska earthquakes

M1.8 earthquake 100 km W of Adak, Alaska

A magnitude 1.8 earthquake struck 100 km W of Adak, Alaska on Mon, Mar 13, 2023, 8:58 PM HADT (05:58 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M4.1 150 km SW 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
1.8 (ml), micro
Local time
UTC
2023-03-14 05:58:23 UTC
Depth
3.3 km (2.0 mi), shallow
Epicenter
51.853° N, 178.089° W
Region
Alaska
Tsunami flag
No
Status
Reviewed by a seismologist

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 0.7 km horizontally, 1.1 km in depth
Magnitude uncertainty
±0.18
Depth from
From location
Station coverage gap
213°, poorly surrounded by stations
Stations used
4

Nearby

Within 100 km, magnitude 1.5 and up: at least 202 in the 60 days after this one and at least 200 in the 30 days before it.

After

  1. 1.7100 km W of Adak, Alaska · 1297 days ago · 1 km deep · 1 km away
  2. 2.2Andreanof Islands, Aleutian Islands, Alaska · 1297 days ago · 5 km deep · 12 km away
  3. 1.987 km W of Adak, Alaska · 1297 days ago · 5 km deep · 13 km away
  4. 1.887 km W of Adak, Alaska · 1297 days ago · 7 km deep · 13 km away
  5. 1.787 km W of Adak, Alaska · 1297 days ago · 4 km deep · 12 km away
  6. 3.2100 km W of Adak, Alaska · 1297 days ago · 8 km deep · 4 km away
  7. 2.087 km W of Adak, Alaska · 1297 days ago · 5 km deep · 13 km away
  8. 1.588 km W of Adak, Alaska · 1297 days ago · 3 km deep · 12 km away
  9. 1.5100 km W of Adak, Alaska · 1297 days ago · 3 km deep · 1 km away
  10. 1.687 km W of Adak, Alaska · 1296 days ago · 5 km deep · 12 km away
  11. 1.588 km W of Adak, Alaska · 1296 days ago · 6 km deep · 12 km away
  12. 1.688 km W of Adak, Alaska · 1296 days ago · 3 km deep · 12 km away
  13. 2.7100 km W of Adak, Alaska · 1296 days ago · 5 km deep · 1 km away
  14. 2.1101 km W of Adak, Alaska · 1296 days ago · 5 km deep · 2 km away
  15. 1.6103 km W of Adak, Alaska · 1296 days ago · 3 km deep · 3 km away
  16. 2.086 km W of Adak, Alaska · 1296 days ago · 5 km deep · 14 km away
  17. 2.186 km W of Adak, Alaska · 1296 days ago · 5 km deep · 14 km away
  18. 1.587 km W of Adak, Alaska · 1296 days ago · 4 km deep · 12 km away
  19. 2.099 km W of Adak, Alaska · 1296 days ago · -2 km deep · 1 km away
  20. 2.0100 km W of Adak, Alaska · 1296 days ago · 4 km deep · 1 km away
  21. 1.6100 km W of Adak, Alaska · 1296 days ago · 3 km deep · 1 km away
  22. 1.788 km W of Adak, Alaska · 1296 days ago · 6 km deep · 12 km away
  23. 1.6100 km W of Adak, Alaska · 1296 days ago · 3 km deep · 0 km away
  24. 1.8104 km W of Adak, Alaska · 1296 days ago · 6 km deep · 6 km away
  25. 1.797 km W of Adak, Alaska · 1296 days ago · -2 km deep · 3 km away
  26. 2.9130 km WSW of Adak, Alaska · 1296 days ago · 43 km deep · 65 km away
  27. 1.7100 km W of Adak, Alaska · 1296 days ago · 3 km deep · 1 km away
  28. 1.699 km W of Adak, Alaska · 1296 days ago · 0 km deep · 0 km away
  29. 1.699 km W of Adak, Alaska · 1296 days ago · 5 km deep · 1 km away
  30. 1.6101 km W of Adak, Alaska · 1296 days ago · -2 km deep · 1 km away
  31. 2.5Andreanof Islands, Aleutian Islands, Alaska · 1296 days ago · 5 km deep · 1 km away
  32. 2.489 km W of Adak, Alaska · 1296 days ago · 8 km deep · 11 km away
  33. 1.689 km W of Adak, Alaska · 1296 days ago · 2 km deep · 11 km away
  34. 3.0Andreanof Islands, Aleutian Islands, Alaska · 1296 days ago · 7 km deep · 1 km away
  35. 2.4101 km W of Adak, Alaska · 1296 days ago · 9 km deep · 2 km away
  36. 1.5101 km W of Adak, Alaska · 1296 days ago · 3 km deep · 2 km away
  37. 1.7101 km W of Adak, Alaska · 1296 days ago · 5 km deep · 2 km away
  38. 2.188 km W of Adak, Alaska · 1296 days ago · 3 km deep · 12 km away
  39. 1.5100 km W of Adak, Alaska · 1296 days ago · 4 km deep · 0 km away
  40. 3.0100 km W of Adak, Alaska · 1296 days ago · 4 km deep · 2 km away
  41. 2.9115 km W of Adak, Alaska · 1296 days ago · 5 km deep · 25 km away
  42. 2.3112 km W of Adak, Alaska · 1296 days ago · 10 km deep · 13 km away
  43. 2.3101 km W of Adak, Alaska · 1295 days ago · 5 km deep · 1 km away
  44. 1.792 km W of Adak, Alaska · 1295 days ago · 3 km deep · 8 km away
  45. 1.999 km W of Adak, Alaska · 1295 days ago · 4 km deep · 0 km away
  46. 2.099 km W of Adak, Alaska · 1295 days ago · 4 km deep · 1 km away
  47. 2.067 km SSW of Adak, Alaska · 1295 days ago · 24 km deep · 91 km away
  48. 1.691 km W of Adak, Alaska · 1295 days ago · 5 km deep · 9 km away
  49. 1.8100 km W of Adak, Alaska · 1295 days ago · 4 km deep · 1 km away
  50. 1.5100 km W of Adak, Alaska · 1295 days ago · 3 km deep · 0 km away
  51. 2.3Andreanof Islands, Aleutian Islands, Alaska · 1295 days ago · 7 km deep · 3 km away
  52. 3.0100 km W of Adak, Alaska · 1295 days ago · 9 km deep · 6 km away
  53. 1.699 km W of Adak, Alaska · 1295 days ago · 3 km deep · 1 km away
  54. 2.599 km W of Adak, Alaska · 1295 days ago · 3 km deep · 5 km away
  55. 2.198 km W of Adak, Alaska · 1295 days ago · 1 km deep · 2 km away
  56. 2.299 km W of Adak, Alaska · 1294 days ago · 4 km deep · 1 km away
  57. 1.9100 km W of Adak, Alaska · 1294 days ago · 2 km deep · 1 km away
  58. 1.997 km W of Adak, Alaska · 1294 days ago · -2 km deep · 3 km away
  59. 1.7100 km W of Adak, Alaska · 1294 days ago · 3 km deep · 0 km away
  60. 2.1103 km W of Adak, Alaska · 1294 days ago · 6 km deep · 3 km away

The first 60 of at least 202.

Before

  1. 1.8116 km WSW of Adak, Alaska · 1297 days ago · 13 km deep · 31 km away
  2. 1.598 km W of Adak, Alaska · 1297 days ago · -2 km deep · 3 km away
  3. 2.2124 km WSW of Adak, Alaska · 1297 days ago · 20 km deep · 50 km away
  4. 1.587 km W of Adak, Alaska · 1297 days ago · 5 km deep · 13 km away
  5. 2.1102 km W of Adak, Alaska · 1297 days ago · 5 km deep · 3 km away
  6. 2.086 km W of Adak, Alaska · 1297 days ago · 7 km deep · 14 km away
  7. 1.7106 km W of Adak, Alaska · 1297 days ago · 7 km deep · 8 km away
  8. 2.4100 km W of Adak, Alaska · 1297 days ago · 5 km deep · 6 km away
  9. 1.881 km WSW of Adak, Alaska · 1297 days ago · 28 km deep · 40 km away
  10. 2.099 km W of Adak, Alaska · 1297 days ago · 3 km deep · 1 km away
  11. 2.2100 km W of Adak, Alaska · 1297 days ago · 4 km deep · 0 km away
  12. 2.0104 km W of Adak, Alaska · 1297 days ago · 7 km deep · 4 km away
  13. 1.676 km W of Adak, Alaska · 1297 days ago · 2 km deep · 24 km away
  14. 2.1104 km W of Adak, Alaska · 1297 days ago · 5 km deep · 4 km away
  15. 3.2105 km W of Adak, Alaska · 1297 days ago · 5 km deep · 7 km away
  16. 1.587 km W of Adak, Alaska · 1297 days ago · 6 km deep · 13 km away
  17. 1.7100 km W of Adak, Alaska · 1297 days ago · 3 km deep · 0 km away
  18. 1.9100 km W of Adak, Alaska · 1297 days ago · 4 km deep · 1 km away
  19. 1.686 km W of Adak, Alaska · 1297 days ago · 4 km deep · 14 km away
  20. 1.699 km W of Adak, Alaska · 1297 days ago · 3 km deep · 1 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event av91804261. Read Wed, Sep 30, 2026, 8:55 PM UTC.