Alaska earthquakes

M1.8 earthquake 62 km W of Happy Valley, Alaska

A magnitude 1.8 earthquake struck 62 km W of Happy Valley, Alaska on Tue, Oct 21, 2025, 1:55 AM AKDT (09:55 UTC), 98 km (61 mi) below the surface.

Automatic solution: the magnitude and location may still be revised.

A larger quake followed: M3.7 55 km WNW of Happy Valley, Alaska. This one was a foreshock.

Happy Valley forecastMore in Alaska

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
1.8 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2025-10-21 09:55:44 UTC
Depth
98.2 km (61.0 mi), intermediate-depth
Epicenter
60.051° N, 152.832° W
Region
Alaska
Tsunami flag
No
Status
Automatic solution, may be revised

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

An automatic solution; a seismologist may revise it.

Stations used
24

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: at least 201 in the 60 days after this one and 150 in the 30 days before it.

After

  1. 1.867 km ENE of Pedro Bay, Alaska · 347 days ago · 122 km deep · 12 km away
  2. 2.557 km NW of Ninilchik, Alaska · 347 days ago · 88 km deep · 46 km away
  3. 2.242 km WNW of Happy Valley, Alaska · 347 days ago · 92 km deep · 23 km away
  4. 1.858 km NW of Ninilchik, Alaska · 346 days ago · 103 km deep · 42 km away
  5. 1.830 km WNW of Anchor Point, Alaska · 346 days ago · 75 km deep · 33 km away
  6. 2.541 km NE of Pedro Bay, Alaska · 346 days ago · 165 km deep · 39 km away
  7. 1.942 km NW of Ninilchik, Alaska · 345 days ago · 88 km deep · 40 km away
  8. 1.850 km WNW of Happy Valley, Alaska · 345 days ago · 97 km deep · 12 km away
  9. 1.948 km WNW of Happy Valley, Alaska · 345 days ago · 98 km deep · 16 km away
  10. 1.545 km WNW of Nikiski, Alaska · 345 days ago · 39 km deep · 92 km away
  11. 2.260 km ESE of Pedro Bay, Alaska · 345 days ago · 103 km deep · 49 km away
  12. 1.840 km WSW of Anchor Point, Alaska · 345 days ago · 76 km deep · 42 km away
  13. 2.466 km W of Happy Valley, Alaska · 344 days ago · 109 km deep · 5 km away
  14. 2.125 km WSW of Anchor Point, Alaska · 344 days ago · 74 km deep · 49 km away
  15. 2.850 km ENE of Pedro Bay, Alaska · 344 days ago · 124 km deep · 28 km away
  16. 1.639 km W of Anchor Point, Alaska · 344 days ago · 95 km deep · 41 km away
  17. 1.852 km NW of Ninilchik, Alaska · 344 days ago · 108 km deep · 37 km away
  18. 2.751 km WNW of Anchor Point, Alaska · 343 days ago · 94 km deep · 16 km away
  19. 1.847 km W of Anchor Point, Alaska · 343 days ago · 83 km deep · 25 km away
  20. 1.814 km ESE of Clam Gulch, Alaska · 343 days ago · 63 km deep · 94 km away
  21. 1.657 km WNW of Ninilchik, Alaska · 342 days ago · 100 km deep · 18 km away
  22. 1.959 km ENE of Pedro Bay, Alaska · 341 days ago · 131 km deep · 18 km away
  23. 1.917 km NE of Pedro Bay, Alaska · 341 days ago · 8 km deep · 63 km away
  24. 1.754 km E of Port Alsworth, Alaska · 341 days ago · 169 km deep · 37 km away
  25. 1.722 km E of Pedro Bay, Alaska · 340 days ago · 129 km deep · 57 km away
  26. 1.616 km NW of Ninilchik, Alaska · 340 days ago · 65 km deep · 53 km away
  27. 1.536 km WNW of Nikiski, Alaska · 340 days ago · 87 km deep · 93 km away
  28. 1.543 km W of Salamatof, Alaska · 340 days ago · 79 km deep · 81 km away
  29. 2.143 km WSW of Anchor Point, Alaska · 340 days ago · 90 km deep · 42 km away
  30. 1.625 km WNW of Clam Gulch, Alaska · 340 days ago · 64 km deep · 63 km away
  31. 2.67 km WSW of Kasilof, Alaska · 339 days ago · 34 km deep · 85 km away
  32. 2.373 km WNW of Ninilchik, Alaska · 339 days ago · 116 km deep · 18 km away
  33. 2.447 km SE of Pedro Bay, Alaska · 337 days ago · 118 km deep · 72 km away
  34. 2.051 km E of Pedro Bay, Alaska · 337 days ago · 107 km deep · 42 km away
  35. 2.28 km ENE of Ninilchik, Alaska · 336 days ago · 50 km deep · 72 km away
  36. 2.359 km WNW of Happy Valley, Alaska · 336 days ago · 111 km deep · 6 km away
  37. 2.316 km WNW of Cohoe, Alaska · 336 days ago · 47 km deep · 80 km away
  38. 2.831 km NW of Nanwalek, Alaska · 336 days ago · 65 km deep · 62 km away
  39. 2.045 km W of Anchor Point, Alaska · 336 days ago · 86 km deep · 40 km away
  40. 2.347 km WNW of Anchor Point, Alaska · 336 days ago · 79 km deep · 17 km away
  41. 2.327 km W of Nikiski, Alaska · 336 days ago · 70 km deep · 96 km away
  42. 1.947 km W of Nanwalek, Alaska · 335 days ago · 77 km deep · 80 km away
  43. 2.345 km W of Nanwalek, Alaska · 335 days ago · 68 km deep · 73 km away
  44. 1.830 km WNW of Salamatof, Alaska · 335 days ago · 91 km deep · 89 km away
  45. 1.648 km E of Pedro Bay, Alaska · 335 days ago · 111 km deep · 36 km away
  46. 1.560 km WNW of Happy Valley, Alaska · 335 days ago · 107 km deep · 5 km away
  47. 2.52 km NNW of Happy Valley, Alaska · 335 days ago · 36 km deep · 60 km away
  48. 2.051 km ENE of Pedro Bay, Alaska · 335 days ago · 140 km deep · 26 km away
  49. 1.934 km W of Nanwalek, Alaska · 334 days ago · 157 km deep · 82 km away
  50. 1.567 km ENE of Pedro Bay, Alaska · 334 days ago · 125 km deep · 14 km away
  51. 1.965 km W of Happy Valley, Alaska · 333 days ago · 118 km deep · 3 km away
  52. 1.616 km N of Fritz Creek, Alaska · 333 days ago · 41 km deep · 88 km away
  53. 1.658 km ENE of Pedro Bay, Alaska · 333 days ago · 119 km deep · 19 km away
  54. 1.837 km WSW of Anchor Point, Alaska · 333 days ago · 56 km deep · 46 km away
  55. 1.775 km WSW of Nanwalek, Alaska · 332 days ago · 17 km deep · 94 km away
  56. 1.637 km NW of Nanwalek, Alaska · 332 days ago · 57 km deep · 56 km away
  57. 1.637 km NW of Ninilchik, Alaska · 332 days ago · 79 km deep · 44 km away
  58. 1.562 km WNW of Ninilchik, Alaska · 332 days ago · 102 km deep · 14 km away
  59. 2.014 km WSW of Kenai, Alaska · 332 days ago · 57 km deep · 89 km away
  60. 2.015 km WNW of Anchor Point, Alaska · 331 days ago · 16 km deep · 48 km away

The first 60 of at least 201.

Before

  1. 1.819 km WNW of Cohoe, Alaska · 347 days ago · 59 km deep · 77 km away
  2. 1.753 km W of Nanwalek, Alaska · 347 days ago · 82 km deep · 68 km away
  3. 1.637 km W of Anchor Point, Alaska · 348 days ago · 90 km deep · 35 km away
  4. 2.358 km WNW of Ninilchik, Alaska · 348 days ago · 111 km deep · 17 km away
  5. 1.843 km NW of Ninilchik, Alaska · 348 days ago · 87 km deep · 40 km away
  6. 2.043 km WNW of Ninilchik, Alaska · 348 days ago · 89 km deep · 24 km away
  7. 2.05 km E of Kachemak, Alaska · 348 days ago · 42 km deep · 94 km away
  8. 1.740 km W of Kalifornsky, Alaska · 349 days ago · 81 km deep · 63 km away
  9. 1.657 km WNW of Clam Gulch, Alaska · 349 days ago · 82 km deep · 52 km away
  10. 1.634 km WNW of Anchor Point, Alaska · 349 days ago · 65 km deep · 31 km away
  11. 2.114 km SE of Clam Gulch, Alaska · 349 days ago · 55 km deep · 91 km away
  12. 1.739 km WNW of Nanwalek, Alaska · 349 days ago · 73 km deep · 67 km away
  13. 1.660 km WNW of Ninilchik, Alaska · 349 days ago · 118 km deep · 23 km away
  14. 1.86 km NW of Nanwalek, Alaska · 349 days ago · 48 km deep · 86 km away
  15. 2.653 km W of Kalifornsky, Alaska · 349 days ago · 86 km deep · 56 km away
  16. 2.047 km NE of Pedro Bay, Alaska · 350 days ago · 163 km deep · 32 km away
  17. 1.966 km W of Happy Valley, Alaska · 350 days ago · 114 km deep · 4 km away
  18. 2.241 km NE of Pedro Bay, Alaska · 350 days ago · 155 km deep · 38 km away
  19. 2.163 km E of Port Alsworth, Alaska · 350 days ago · 141 km deep · 28 km away
  20. 1.840 km WSW of Nanwalek, Alaska · 350 days ago · 66 km deep · 91 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak025didothd. Read Sat, Oct 3, 2026, 11:29 AM UTC.