Alaska earthquakes

M2.5 earthquake 82 km SW of Adak, Alaska

A magnitude 2.5 earthquake struck 82 km SW of Adak, Alaska on Sun, Sep 22, 2024, 3:11 AM HADT (12:11 UTC), 54 km (33 mi) below the surface.

A larger quake followed: M5.1 117 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
2.5 (ML, local (Richter)), micro
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2024-09-22 12:11:36 UTC
Depth
53.9 km (33.5 mi), shallow
Epicenter
51.418° N, 177.573° 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
2.5ML, local (Richter)USGS National Earthquake Information CenterPreferred · Reviewed · ±0.115 · 10 stations
2.3ML, 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 5.4 km horizontally, 6.9 km in depth
Magnitude uncertainty
±0.12
Depth from
From location
Station coverage gap
212°, poorly surrounded by stations
Stations used
16

Nearby

Within 100 km, magnitude 1.5 and up: at least 201 in the 60 days after this one and 110 in the 30 days before it.

After

  1. 3.2145 km WSW of Adak, Alaska · 739 days ago · 35 km deep · 65 km away
  2. 2.194 km WSW of Adak, Alaska · 739 days ago · 59 km deep · 24 km away
  3. 1.750 km SW of Adak, Alaska · 738 days ago · 36 km deep · 38 km away
  4. 1.794 km SW of Adak, Alaska · 738 days ago · 25 km deep · 14 km away
  5. 1.777 km SSE of Adak, Alaska · 738 days ago · 23 km deep · 94 km away
  6. 3.4144 km WSW of Adak, Alaska · 738 days ago · 35 km deep · 64 km away
  7. 1.6143 km WSW of Adak, Alaska · 737 days ago · 23 km deep · 63 km away
  8. 1.6150 km WSW of Adak, Alaska · 737 days ago · 24 km deep · 75 km away
  9. 2.199 km SSE of Adak, Alaska · 737 days ago · 13 km deep · 100 km away
  10. 2.521 km WNW of Adak, Alaska · 737 days ago · 81 km deep · 73 km away
  11. 1.9141 km SW of Adak, Alaska · 737 days ago · 25 km deep · 59 km away
  12. 1.672 km SSW of Adak, Alaska · 737 days ago · 26 km deep · 38 km away
  13. 2.1138 km WSW of Adak, Alaska · 736 days ago · 47 km deep · 59 km away
  14. 2.191 km WSW of Adak, Alaska · 736 days ago · 13 km deep · 17 km away
  15. 2.057 km SSE of Adak, Alaska · 736 days ago · 37 km deep · 88 km away
  16. 1.856 km SSW of Adak, Alaska · 736 days ago · 26 km deep · 37 km away
  17. 2.1155 km WSW of Adak, Alaska · 736 days ago · 25 km deep · 75 km away
  18. 1.752 km SW of Adak, Alaska · 736 days ago · 39 km deep · 35 km away
  19. 1.992 km SW of Adak, Alaska · 736 days ago · 23 km deep · 24 km away
  20. 2.1143 km WSW of Adak, Alaska · 736 days ago · 24 km deep · 63 km away
  21. 2.072 km SSW of Adak, Alaska · 736 days ago · 21 km deep · 44 km away
  22. 3.360 km SSE of Adak, Alaska · 736 days ago · 33 km deep · 94 km away
  23. 2.8132 km WSW of Adak, Alaska · 736 days ago · 35 km deep · 53 km away
  24. 1.867 km S of Adak, Alaska · 735 days ago · 23 km deep · 70 km away
  25. 4.0146 km WSW of Adak, Alaska · 735 days ago · 35 km deep · 66 km away
  26. 2.2141 km WSW of Adak, Alaska · 735 days ago · 13 km deep · 61 km away
  27. 2.166 km SSW of Adak, Alaska · 734 days ago · 36 km deep · 35 km away
  28. 2.063 km SSE of Adak, Alaska · 734 days ago · 23 km deep · 90 km away
  29. 2.041 km W of Adak, Alaska · 734 days ago · 86 km deep · 60 km away
  30. 2.033 km SSW of Adak, Alaska · 734 days ago · 42 km deep · 59 km away
  31. 2.098 km SSE of Adak, Alaska · 734 days ago · 14 km deep · 100 km away
  32. 1.741 km SSE of Adak, Alaska · 734 days ago · 31 km deep · 86 km away
  33. 1.998 km SW of Adak, Alaska · 734 days ago · 29 km deep · 28 km away
  34. 1.998 km SW of Adak, Alaska · 734 days ago · 26 km deep · 29 km away
  35. 1.834 km S of Adak, Alaska · 734 days ago · 40 km deep · 64 km away
  36. 3.440 km SW of Adak, Alaska · 733 days ago · 35 km deep · 44 km away
  37. 2.1157 km WSW of Adak, Alaska · 733 days ago · 62 km deep · 92 km away
  38. 2.893 km SSE of Adak, Alaska · 733 days ago · 35 km deep · 99 km away
  39. 2.276 km SSW of Adak, Alaska · 733 days ago · 25 km deep · 38 km away
  40. 1.865 km SSW of Adak, Alaska · 732 days ago · 27 km deep · 42 km away
  41. 1.9144 km WSW of Adak, Alaska · 732 days ago · 24 km deep · 64 km away
  42. 1.999 km WSW of Adak, Alaska · 732 days ago · 56 km deep · 20 km away
  43. 1.859 km SSE of Adak, Alaska · 732 days ago · 26 km deep · 96 km away
  44. 1.552 km SSE of Adak, Alaska · 732 days ago · 26 km deep · 89 km away
  45. 1.9115 km SW of Adak, Alaska · 732 days ago · 47 km deep · 34 km away
  46. 1.556 km WSW of Adak, Alaska · 732 days ago · 13 km deep · 38 km away
  47. 1.9124 km WSW of Adak, Alaska · 731 days ago · 25 km deep · 49 km away
  48. 2.5138 km SW of Adak, Alaska · 731 days ago · 35 km deep · 56 km away
  49. 3.051 km S of Adak, Alaska · 731 days ago · 35 km deep · 70 km away
  50. 1.997 km SW of Adak, Alaska · 731 days ago · 35 km deep · 15 km away
  51. 3.2132 km WSW of Adak, Alaska · 731 days ago · 21 km deep · 58 km away
  52. 1.9126 km WSW of Adak, Alaska · 730 days ago · 8 km deep · 58 km away
  53. 1.977 km SW of Adak, Alaska · 730 days ago · 27 km deep · 6 km away
  54. 1.986 km SSE of Adak, Alaska · 730 days ago · 11 km deep · 97 km away
  55. 2.0110 km SW of Adak, Alaska · 730 days ago · 40 km deep · 29 km away
  56. 1.928 km SSE of Adak, Alaska · 729 days ago · 50 km deep · 81 km away
  57. 1.856 km SSE of Adak, Alaska · 729 days ago · 24 km deep · 82 km away
  58. 1.978 km SSE of Adak, Alaska · 729 days ago · 2 km deep · 90 km away
  59. 2.089 km SW of Adak, Alaska · 729 days ago · 44 km deep · 7 km away
  60. 5.068 km SSW of Adak, Alaska · 729 days ago · 35 km deep · 46 km away · felt by 1

The first 60 of at least 201.

Before

  1. 2.5117 km SW of Adak, Alaska · 740 days ago · 35 km deep · 35 km away
  2. 2.9147 km WSW of Adak, Alaska · 740 days ago · 35 km deep · 67 km away
  3. 1.843 km SSE of Adak, Alaska · 740 days ago · 34 km deep · 85 km away
  4. 2.753 km SSE of Adak, Alaska · 740 days ago · 35 km deep · 94 km away
  5. 3.0153 km WSW of Adak, Alaska · 740 days ago · 35 km deep · 74 km away
  6. 2.0142 km WSW of Adak, Alaska · 740 days ago · 24 km deep · 62 km away
  7. 5.4142 km WSW of Adak, Alaska · 740 days ago · 45 km deep · 63 km away · felt by 5 · tsunami flag
  8. 2.297 km SSE of Adak, Alaska · 741 days ago · 14 km deep · 100 km away
  9. 2.8147 km WSW of Adak, Alaska · 741 days ago · 35 km deep · 69 km away
  10. 1.942 km SSW of Adak, Alaska · 741 days ago · 54 km deep · 54 km away
  11. 2.558 km W of Adak, Alaska · 741 days ago · 99 km deep · 46 km away
  12. 1.822 km ESE of Adak, Alaska · 742 days ago · 68 km deep · 92 km away
  13. 2.978 km SW of Adak, Alaska · 743 days ago · 35 km deep · 4 km away
  14. 2.0133 km WSW of Adak, Alaska · 743 days ago · 98 km deep · 67 km away
  15. 1.767 km WSW of Adak, Alaska · 743 days ago · 61 km deep · 22 km away
  16. 2.657 km WSW of Adak, Alaska · 743 days ago · 75 km deep · 27 km away
  17. 2.6150 km WSW of Adak, Alaska · 743 days ago · 18 km deep · 87 km away
  18. 3.0107 km SW of Adak, Alaska · 744 days ago · 35 km deep · 26 km away
  19. 2.0141 km WSW of Adak, Alaska · 744 days ago · 23 km deep · 61 km away
  20. 2.5144 km WSW of Adak, Alaska · 744 days ago · 86 km deep · 81 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000nnvv (also filed as ak024c845ycp). Read Fri, Oct 2, 2026, 1:31 AM UTC.