Alaska earthquakes

M3.1 earthquake 75 km SSE of Atka, Alaska

A magnitude 3.1 earthquake struck 75 km SSE of Atka, Alaska on Mon, Jul 27, 2026, 3:38 PM HADT (00:38 UTC), 14 km (9 mi) below the surface.

A larger quake followed: M4.9 86 km SSE of Atka, Alaska. This one was a foreshock.

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The earthquake

Magnitude
3.1 (ML, local (Richter)), minor
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2026-07-28 00:38:33 UTC
Depth
13.7 km (8.5 mi), shallow
Epicenter
51.563° N, 173.824° 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 5.5 km horizontally, 4.7 km in depth
Magnitude uncertainty
±0.09
Depth from
From location
Station coverage gap
206°, poorly surrounded by stations
Stations used
8

Nearby

Within 100 km, magnitude 1.5 and up: 148 in the 60 days after this one and 143 in the 30 days before it.

After

  1. 2.594 km SE of Atka, Alaska · 66 days ago · 18 km deep · 31 km away
  2. 3.161 km SSE of Atka, Alaska · 66 days ago · 35 km deep · 15 km away
  3. 2.698 km SE of Atka, Alaska · 66 days ago · 10 km deep · 40 km away
  4. 3.286 km SE of Atka, Alaska · 66 days ago · 10 km deep · 41 km away
  5. 2.860 km SE of Atka, Alaska · 66 days ago · 35 km deep · 30 km away
  6. 2.5102 km S of Atka, Alaska · 66 days ago · 5 km deep · 40 km away
  7. 2.214 km SSW of Atka, Alaska · 65 days ago · 166 km deep · 63 km away
  8. 2.221 km W of Atka, Alaska · 65 days ago · 178 km deep · 84 km away
  9. 2.886 km SSE of Atka, Alaska · 65 days ago · 31 km deep · 17 km away
  10. 2.167 km SSW of Atka, Alaska · 65 days ago · 18 km deep · 52 km away
  11. 3.351 km SE of Atka, Alaska · 64 days ago · 74 km deep · 41 km away
  12. 2.487 km SSE of Atka, Alaska · 64 days ago · 5 km deep · 16 km away
  13. 2.5170 km S of Atka, Alaska · 64 days ago · 5 km deep · 99 km away
  14. 2.223 km WSW of Atka, Alaska · 64 days ago · 98 km deep · 75 km away
  15. 3.1100 km SW of Atka, Alaska · 63 days ago · 35 km deep · 94 km away
  16. 2.750 km SE of Atka, Alaska · 63 days ago · 69 km deep · 32 km away
  17. 3.597 km SSE of Atka, Alaska · 63 days ago · 11 km deep · 29 km away
  18. 2.986 km SSE of Atka, Alaska · 63 days ago · 10 km deep · 13 km away
  19. 3.667 km SE of Atka, Alaska · 62 days ago · 24 km deep · 37 km away
  20. 2.482 km SSE of Atka, Alaska · 62 days ago · 5 km deep · 11 km away
  21. 2.369 km SSE of Atka, Alaska · 62 days ago · 11 km deep · 9 km away
  22. 4.986 km SSE of Atka, Alaska · 61 days ago · 35 km deep · 22 km away
  23. 3.350 km SSE of Atka, Alaska · 61 days ago · 35 km deep · 27 km away
  24. 2.8101 km SE of Atka, Alaska · 61 days ago · 35 km deep · 40 km away
  25. 4.882 km SE of Atka, Alaska · 61 days ago · 49 km deep · 27 km away
  26. 2.878 km S of Atka, Alaska · 61 days ago · 10 km deep · 23 km away
  27. 3.824 km NW of Atka, Alaska · 60 days ago · 179 km deep · 98 km away
  28. 2.685 km SW of Atka, Alaska · 60 days ago · 21 km deep · 79 km away
  29. 2.660 km S of Atka, Alaska · 59 days ago · 20 km deep · 22 km away
  30. 2.999 km SE of Atka, Alaska · 59 days ago · 16 km deep · 41 km away
  31. 4.387 km SSE of Atka, Alaska · 59 days ago · 33 km deep · 22 km away
  32. 2.985 km SE of Atka, Alaska · 59 days ago · 35 km deep · 25 km away
  33. 2.785 km SSE of Atka, Alaska · 59 days ago · 35 km deep · 20 km away
  34. 2.790 km SSE of Atka, Alaska · 58 days ago · 10 km deep · 21 km away
  35. 2.831 km SW of Atka, Alaska · 58 days ago · 142 km deep · 74 km away
  36. 3.196 km SSE of Atka, Alaska · 58 days ago · 8 km deep · 26 km away
  37. 2.686 km SSE of Atka, Alaska · 58 days ago · 12 km deep · 16 km away
  38. 2.696 km SE of Atka, Alaska · 58 days ago · 20 km deep · 31 km away
  39. 2.290 km S of Atka, Alaska · 58 days ago · 19 km deep · 47 km away
  40. 3.180 km SE of Atka, Alaska · 58 days ago · 18 km deep · 20 km away
  41. 2.484 km SSE of Atka, Alaska · 58 days ago · 5 km deep · 9 km away
  42. 3.093 km SSE of Atka, Alaska · 58 days ago · 10 km deep · 20 km away
  43. 2.861 km S of Atka, Alaska · 57 days ago · 10 km deep · 23 km away
  44. 2.591 km SSE of Atka, Alaska · 57 days ago · 20 km deep · 26 km away
  45. 2.695 km SSE of Atka, Alaska · 57 days ago · 2 km deep · 21 km away
  46. 2.489 km SSE of Atka, Alaska · 57 days ago · 8 km deep · 16 km away
  47. 2.6147 km SSE of Atka, Alaska · 57 days ago · 12 km deep · 73 km away
  48. 2.5119 km SE of Atka, Alaska · 57 days ago · 20 km deep · 51 km away
  49. 2.6114 km SE of Atka, Alaska · 56 days ago · 35 km deep · 59 km away
  50. 2.284 km SW of Atka, Alaska · 56 days ago · 27 km deep · 79 km away
  51. 2.751 km SE of Atka, Alaska · 56 days ago · 97 km deep · 30 km away
  52. 2.277 km SSW of Atka, Alaska · 56 days ago · 14 km deep · 65 km away
  53. 2.462 km SSE of Atka, Alaska · 56 days ago · 20 km deep · 16 km away
  54. 2.081 km SW of Atka, Alaska · 56 days ago · 21 km deep · 74 km away
  55. 2.162 km S of Atka, Alaska · 56 days ago · 11 km deep · 26 km away
  56. 2.590 km SSE of Atka, Alaska · 56 days ago · 3 km deep · 22 km away
  57. 2.1104 km ESE of Adak, Alaska · 56 days ago · 29 km deep · 99 km away
  58. 2.597 km SE of Atka, Alaska · 56 days ago · 20 km deep · 39 km away
  59. 3.1122 km S of Atka, Alaska · 56 days ago · 10 km deep · 70 km away
  60. 2.362 km SSE of Atka, Alaska · 55 days ago · 35 km deep · 13 km away

The first 60 of 148.

Before

  1. 2.780 km SSE of Atka, Alaska · 66 days ago · 4 km deep · 7 km away
  2. 2.481 km SSE of Atka, Alaska · 67 days ago · 20 km deep · 14 km away
  3. 2.692 km SSE of Atka, Alaska · 67 days ago · 2 km deep · 20 km away
  4. 3.066 km SSE of Atka, Alaska · 67 days ago · 35 km deep · 15 km away
  5. 3.9120 km SE of Atka, Alaska · 67 days ago · 10 km deep · 52 km away
  6. 2.287 km SSE of Atka, Alaska · 67 days ago · 6 km deep · 15 km away
  7. 3.594 km SE of Atka, Alaska · 67 days ago · 23 km deep · 39 km away
  8. 2.5101 km SE of Atka, Alaska · 67 days ago · 20 km deep · 40 km away
  9. 2.287 km SE of Atka, Alaska · 67 days ago · 20 km deep · 29 km away
  10. 2.8117 km SE of Atka, Alaska · 67 days ago · 10 km deep · 54 km away
  11. 2.674 km E of Atka, Alaska · 67 days ago · 6 km deep · 89 km away
  12. 2.492 km SSE of Atka, Alaska · 67 days ago · 5 km deep · 20 km away
  13. 2.792 km SE of Atka, Alaska · 67 days ago · 10 km deep · 30 km away
  14. 2.264 km S of Atka, Alaska · 67 days ago · 5 km deep · 27 km away
  15. 2.5107 km SSE of Atka, Alaska · 67 days ago · 5 km deep · 38 km away
  16. 3.552 km SSE of Atka, Alaska · 68 days ago · 35 km deep · 23 km away
  17. 2.781 km SE of Atka, Alaska · 68 days ago · 35 km deep · 27 km away
  18. 2.585 km SSE of Atka, Alaska · 68 days ago · 5 km deep · 13 km away
  19. 3.284 km SE of Atka, Alaska · 68 days ago · 35 km deep · 40 km away
  20. 2.016 km WNW of Atka, Alaska · 68 days ago · 180 km deep · 88 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000tgil. Read Fri, Oct 2, 2026, 6:22 AM UTC.