Alaska earthquakes

M2.5 earthquake 81 km SSW of Adak, Alaska

A magnitude 2.5 earthquake struck 81 km SSW of Adak, Alaska on Sat, Aug 1, 2026, 1:17 AM HADT (10:17 UTC), 2 km (1 mi) below the surface.

A larger quake followed: M3.8 70 km SSE 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
Alaska Earthquake Center
Local time
UTC
2026-08-01 10:17:02 UTC
Depth
2.0 km (1.2 mi), shallow
Epicenter
51.173° N, 176.986° 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 5.6 km horizontally, 4.0 km in depth
Magnitude uncertainty
±0.10
Station coverage gap
231°, poorly surrounded by stations
Stations used
24

Nearby

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

After

  1. 2.151 km SSW of Adak, Alaska · 64 days ago · 22 km deep · 31 km away
  2. 2.375 km SE of Adak, Alaska · 64 days ago · 23 km deep · 79 km away
  3. 2.164 km SSW of Adak, Alaska · 64 days ago · 32 km deep · 24 km away
  4. 2.381 km SSE of Adak, Alaska · 64 days ago · 16 km deep · 51 km away
  5. 3.267 km SSW of Adak, Alaska · 64 days ago · 35 km deep · 14 km away
  6. 1.879 km W of Adak, Alaska · 63 days ago · -2 km deep · 94 km away
  7. 2.362 km SSE of Adak, Alaska · 62 days ago · 18 km deep · 61 km away
  8. 2.060 km SSW of Adak, Alaska · 62 days ago · 37 km deep · 27 km away
  9. 2.4124 km SW of Adak, Alaska · 62 days ago · 20 km deep · 71 km away
  10. 2.5119 km SW of Adak, Alaska · 62 days ago · 16 km deep · 61 km away
  11. 2.240 km S of Adak, Alaska · 62 days ago · 62 km deep · 47 km away
  12. 3.2176 km S of Adak, Alaska · 61 days ago · 10 km deep · 99 km away
  13. 1.964 km SSE of Adak, Alaska · 61 days ago · 32 km deep · 63 km away
  14. 2.1125 km WSW of Adak, Alaska · 61 days ago · 6 km deep · 90 km away
  15. 2.270 km SE of Adak, Alaska · 60 days ago · 27 km deep · 77 km away
  16. 2.169 km SSE of Adak, Alaska · 60 days ago · 20 km deep · 63 km away
  17. 3.261 km SE of Adak, Alaska · 60 days ago · 35 km deep · 81 km away
  18. 1.968 km SSW of Adak, Alaska · 60 days ago · 27 km deep · 18 km away
  19. 2.175 km SSE of Adak, Alaska · 60 days ago · 18 km deep · 50 km away
  20. 2.1123 km WSW of Adak, Alaska · 60 days ago · 8 km deep · 91 km away
  21. 2.725 km S of Adak, Alaska · 60 days ago · 95 km deep · 59 km away
  22. 2.072 km SSW of Adak, Alaska · 59 days ago · 34 km deep · 10 km away
  23. 1.764 km SE of Adak, Alaska · 59 days ago · 35 km deep · 74 km away
  24. 1.990 km SW of Adak, Alaska · 59 days ago · 28 km deep · 38 km away
  25. 3.167 km ESE of Adak, Alaska · 59 days ago · 35 km deep · 98 km away
  26. 2.289 km SSE of Adak, Alaska · 59 days ago · 10 km deep · 54 km away
  27. 2.048 km S of Adak, Alaska · 59 days ago · 56 km deep · 35 km away
  28. 2.690 km SSE of Adak, Alaska · 59 days ago · 10 km deep · 55 km away
  29. 2.855 km S of Adak, Alaska · 59 days ago · 35 km deep · 42 km away
  30. 1.970 km SE of Adak, Alaska · 59 days ago · 28 km deep · 76 km away
  31. 1.982 km SW of Adak, Alaska · 59 days ago · 36 km deep · 37 km away
  32. 2.6144 km SW of Adak, Alaska · 59 days ago · 5 km deep · 79 km away
  33. 1.861 km S of Adak, Alaska · 59 days ago · 33 km deep · 30 km away
  34. 1.969 km SSE of Adak, Alaska · 59 days ago · 21 km deep · 53 km away
  35. 2.1130 km SW of Adak, Alaska · 59 days ago · 47 km deep · 85 km away
  36. 2.3135 km SW of Adak, Alaska · 59 days ago · 7 km deep · 72 km away
  37. 2.075 km SSW of Adak, Alaska · 58 days ago · 29 km deep · 8 km away
  38. 1.881 km SSW of Adak, Alaska · 58 days ago · 26 km deep · 1 km away
  39. 2.168 km SE of Adak, Alaska · 58 days ago · 27 km deep · 74 km away
  40. 2.236 km SSE of Adak, Alaska · 58 days ago · 43 km deep · 58 km away
  41. 3.066 km ESE of Adak, Alaska · 58 days ago · 35 km deep · 93 km away
  42. 2.374 km SE of Adak, Alaska · 58 days ago · 22 km deep · 79 km away
  43. 2.667 km S of Adak, Alaska · 58 days ago · 11 km deep · 30 km away
  44. 2.4138 km SW of Adak, Alaska · 58 days ago · 6 km deep · 75 km away
  45. 1.798 km SW of Adak, Alaska · 57 days ago · 29 km deep · 56 km away
  46. 1.961 km SSW of Adak, Alaska · 57 days ago · 33 km deep · 23 km away
  47. 2.0124 km WSW of Adak, Alaska · 57 days ago · 14 km deep · 85 km away
  48. 2.070 km SSE of Adak, Alaska · 57 days ago · 22 km deep · 65 km away
  49. 1.616 km WSW of Adak, Alaska · 57 days ago · 92 km deep · 70 km away
  50. 2.599 km SW of Adak, Alaska · 57 days ago · 8 km deep · 48 km away
  51. 1.874 km SSW of Adak, Alaska · 57 days ago · 26 km deep · 7 km away
  52. 1.680 km WSW of Adak, Alaska · 57 days ago · 73 km deep · 63 km away
  53. 1.893 km SW of Adak, Alaska · 57 days ago · 52 km deep · 56 km away
  54. 1.979 km S of Adak, Alaska · 57 days ago · 19 km deep · 27 km away
  55. 1.659 km SSE of Adak, Alaska · 56 days ago · 29 km deep · 63 km away
  56. 2.172 km SSE of Adak, Alaska · 56 days ago · 18 km deep · 39 km away
  57. 2.066 km SSE of Adak, Alaska · 56 days ago · 32 km deep · 58 km away
  58. 2.084 km SW of Adak, Alaska · 56 days ago · 23 km deep · 33 km away
  59. 2.071 km SE of Adak, Alaska · 56 days ago · 28 km deep · 67 km away
  60. 2.059 km SSW of Adak, Alaska · 56 days ago · 34 km deep · 25 km away

The first 60 of at least 200.

Before

  1. 1.859 km SSW of Adak, Alaska · 64 days ago · 34 km deep · 26 km away
  2. 2.072 km SE of Adak, Alaska · 65 days ago · 28 km deep · 74 km away
  3. 2.191 km SW of Adak, Alaska · 65 days ago · 28 km deep · 39 km away
  4. 2.242 km S of Adak, Alaska · 65 days ago · 64 km deep · 40 km away
  5. 2.563 km SE of Adak, Alaska · 65 days ago · 33 km deep · 86 km away
  6. 2.176 km SE of Adak, Alaska · 65 days ago · 35 km deep · 74 km away
  7. 2.077 km SSE of Adak, Alaska · 66 days ago · 25 km deep · 66 km away
  8. 2.1122 km WSW of Adak, Alaska · 66 days ago · 11 km deep · 83 km away
  9. 2.164 km SSW of Adak, Alaska · 66 days ago · 24 km deep · 20 km away
  10. 2.467 km S of Adak, Alaska · 66 days ago · 18 km deep · 29 km away
  11. 2.159 km SSW of Adak, Alaska · 66 days ago · 47 km deep · 23 km away
  12. 1.854 km WSW of Adak, Alaska · 67 days ago · 88 km deep · 63 km away
  13. 2.675 km SSW of Adak, Alaska · 67 days ago · 32 km deep · 16 km away
  14. 1.973 km S of Adak, Alaska · 67 days ago · 20 km deep · 28 km away
  15. 1.992 km SW of Adak, Alaska · 67 days ago · 21 km deep · 50 km away
  16. 2.4116 km SSE of Adak, Alaska · 67 days ago · 15 km deep · 86 km away
  17. 1.7123 km WSW of Adak, Alaska · 67 days ago · 3 km deep · 88 km away
  18. 1.977 km SSW of Adak, Alaska · 67 days ago · 35 km deep · 8 km away
  19. 2.1111 km SW of Adak, Alaska · 67 days ago · 17 km deep · 60 km away
  20. 2.144 km SW of Adak, Alaska · 67 days ago · 102 km deep · 49 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event aka2026pcjfnm. Read Sun, Oct 4, 2026, 7:41 PM UTC.