Alaska earthquakes

M2.3 earthquake 81 km SSW of Unalaska, Alaska

A magnitude 2.3 earthquake struck 81 km SSW of Unalaska, Alaska on Fri, Dec 12, 2025, 9:52 AM AKST (18:52 UTC), 45 km (28 mi) below the surface.

A larger quake followed: M4.2 70 km SSE of Akutan, Alaska. This one was a foreshock.

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Map

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

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The earthquake

Magnitude
2.3 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2025-12-12 18:52:33 UTC
Depth
45.2 km (28.1 mi), shallow
Epicenter
53.169° N, 166.839° 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 0.0 km horizontally, 17.7 km in depth
Magnitude uncertainty
±0.40
Station coverage gap
229°, poorly surrounded by stations
Stations used
14

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 91 in the 60 days after this one and 61 in the 30 days before it.

After

  1. 2.887 km E of Nikolski, Alaska · 295 days ago · 35 km deep · 65 km away
  2. 3.094 km SSW of Unalaska, Alaska · 295 days ago · 53 km deep · 25 km away
  3. 2.488 km SSW of Unalaska, Alaska · 295 days ago · 43 km deep · 13 km away
  4. 3.132 km SSE of Unalaska, Alaska · 294 days ago · 65 km deep · 56 km away
  5. 3.533 km SSE of Unalaska, Alaska · 293 days ago · 70 km deep · 55 km away
  6. 2.156 km WSW of Unalaska, Alaska · 293 days ago · 78 km deep · 57 km away
  7. 2.571 km S of Akutan, Alaska · 292 days ago · 25 km deep · 87 km away
  8. 2.764 km E of Nikolski, Alaska · 292 days ago · 35 km deep · 78 km away
  9. 3.250 km E of Nikolski, Alaska · 291 days ago · 65 km deep · 89 km away
  10. 2.2128 km SSW of Unalaska, Alaska · 290 days ago · 10 km deep · 47 km away
  11. 3.75 km W of Dutch Harbor, Alaska · 290 days ago · 6 km deep · 82 km away · felt by 4
  12. 3.74 km WNW of Dutch Harbor, Alaska · 290 days ago · 9 km deep · 82 km away
  13. 3.661 km SE of Unalaska, Alaska · 290 days ago · 52 km deep · 71 km away
  14. 1.988 km S of Unalaska, Alaska · 289 days ago · 19 km deep · 21 km away
  15. 2.019 km E of Unalaska, Alaska · 289 days ago · 84 km deep · 86 km away
  16. 2.290 km SW of Unalaska, Alaska · 289 days ago · 68 km deep · 44 km away
  17. 1.56 km W of Dutch Harbor, Alaska · 286 days ago · 9 km deep · 81 km away
  18. 2.460 km SSW of Unalaska, Alaska · 286 days ago · 11 km deep · 29 km away
  19. 2.2100 km SSW of Unalaska, Alaska · 285 days ago · 8 km deep · 20 km away
  20. 1.520 km ENE of Dutch Harbor, Alaska · 285 days ago · 1 km deep · 98 km away
  21. 2.3142 km S of Unalaska, Alaska · 285 days ago · 35 km deep · 67 km away
  22. 2.392 km S of Unalaska, Alaska · 284 days ago · 22 km deep · 16 km away
  23. 2.26 km WSW of Dutch Harbor, Alaska · 284 days ago · 12 km deep · 80 km away
  24. 2.36 km W of Dutch Harbor, Alaska · 283 days ago · 11 km deep · 81 km away
  25. 1.56 km N of Dutch Harbor, Alaska · 283 days ago · 14 km deep · 88 km away
  26. 3.083 km E of Nikolski, Alaska · 283 days ago · 48 km deep · 58 km away
  27. 2.164 km SW of Unalaska, Alaska · 279 days ago · 78 km deep · 51 km away
  28. 2.588 km S of Unalaska, Alaska · 279 days ago · 28 km deep · 9 km away
  29. 2.883 km SW of Unalaska, Alaska · 278 days ago · 0 km deep · 30 km away
  30. 2.266 km S of Unalaska, Alaska · 278 days ago · 61 km deep · 31 km away
  31. 1.85 km WNW of Dutch Harbor, Alaska · 277 days ago · 8 km deep · 83 km away
  32. 2.171 km SSE of Unalaska, Alaska · 277 days ago · 36 km deep · 38 km away
  33. 2.450 km ESE of Nikolski, Alaska · 277 days ago · 50 km deep · 96 km away
  34. 2.282 km SW of Unalaska, Alaska · 277 days ago · 5 km deep · 30 km away
  35. 2.550 km ESE of Nikolski, Alaska · 277 days ago · 28 km deep · 98 km away
  36. 2.6136 km S of Unalaska, Alaska · 276 days ago · 5 km deep · 66 km away
  37. 2.762 km ESE of Nikolski, Alaska · 276 days ago · 27 km deep · 92 km away
  38. 3.250 km ESE of Nikolski, Alaska · 276 days ago · 28 km deep · 100 km away
  39. 3.956 km ENE of Nikolski, Alaska · 276 days ago · 62 km deep · 82 km away
  40. 2.699 km SSW of Unalaska, Alaska · 276 days ago · 27 km deep · 25 km away
  41. 2.490 km SSW of Unalaska, Alaska · 275 days ago · 26 km deep · 11 km away
  42. 2.848 km SE of Unalaska, Alaska · 275 days ago · 24 km deep · 71 km away
  43. 2.8144 km ESE of Nikolski, Alaska · 275 days ago · 25 km deep · 82 km away
  44. 2.631 km SSW of Akutan, Alaska · 275 days ago · 87 km deep · 97 km away
  45. 2.06 km W of Unalaska, Alaska · 274 days ago · 12 km deep · 78 km away
  46. 2.869 km SSE of Unalaska, Alaska · 274 days ago · 26 km deep · 52 km away
  47. 3.385 km E of Nikolski, Alaska · 272 days ago · 35 km deep · 66 km away
  48. 4.081 km E of Nikolski, Alaska · 272 days ago · 42 km deep · 61 km away
  49. 2.791 km SE of Unalaska, Alaska · 271 days ago · 23 km deep · 77 km away
  50. 2.975 km SE of Unalaska, Alaska · 271 days ago · 18 km deep · 76 km away
  51. 2.882 km SE of Nikolski, Alaska · 271 days ago · 2 km deep · 98 km away
  52. 2.854 km E of Nikolski, Alaska · 268 days ago · 35 km deep · 87 km away
  53. 3.662 km E of Nikolski, Alaska · 267 days ago · 43 km deep · 78 km away
  54. 3.391 km E of Nikolski, Alaska · 267 days ago · 35 km deep · 48 km away
  55. 2.6107 km S of Unalaska, Alaska · 266 days ago · 12 km deep · 37 km away
  56. 1.76 km WSW of Dutch Harbor, Alaska · 264 days ago · 10 km deep · 80 km away
  57. 2.26 km WSW of Dutch Harbor, Alaska · 264 days ago · 10 km deep · 80 km away
  58. 2.16 km W of Dutch Harbor, Alaska · 264 days ago · 11 km deep · 80 km away
  59. 2.562 km ENE of Nikolski, Alaska · 263 days ago · 124 km deep · 79 km away
  60. 2.896 km SSE of Unalaska, Alaska · 263 days ago · 8 km deep · 58 km away

The first 60 of 91.

Before

  1. 2.2104 km ESE of Nikolski, Alaska · 297 days ago · 10 km deep · 85 km away
  2. 2.076 km SSE of Unalaska, Alaska · 297 days ago · 24 km deep · 40 km away
  3. 2.273 km WSW of Unalaska, Alaska · 297 days ago · 18 km deep · 62 km away
  4. 2.295 km E of Nikolski, Alaska · 299 days ago · 16 km deep · 60 km away
  5. 2.9139 km S of Unalaska, Alaska · 299 days ago · 20 km deep · 59 km away
  6. 3.778 km ESE of Nikolski, Alaska · 299 days ago · 35 km deep · 76 km away
  7. 2.358 km SSW of Unalaska, Alaska · 300 days ago · 85 km deep · 23 km away
  8. 1.86 km ENE of Unalaska, Alaska · 300 days ago · 13 km deep · 84 km away
  9. 2.372 km SE of Unalaska, Alaska · 300 days ago · 49 km deep · 82 km away
  10. 2.478 km SE of Unalaska, Alaska · 300 days ago · 12 km deep · 84 km away
  11. 2.282 km S of Unalaska, Alaska · 300 days ago · 18 km deep · 6 km away
  12. 2.467 km SE of Unalaska, Alaska · 303 days ago · 22 km deep · 75 km away
  13. 2.483 km S of Unalaska, Alaska · 303 days ago · 20 km deep · 10 km away
  14. 2.953 km ESE of Nikolski, Alaska · 304 days ago · 40 km deep · 94 km away
  15. 1.665 km NE of Nikolski, Alaska · 304 days ago · 21 km deep · 84 km away
  16. 2.031 km ESE of Unalaska, Alaska · 304 days ago · 79 km deep · 80 km away
  17. 2.270 km SSE of Akutan, Alaska · 306 days ago · 51 km deep · 100 km away
  18. 3.294 km S of Unalaska, Alaska · 306 days ago · 36 km deep · 18 km away
  19. 2.165 km SE of Unalaska, Alaska · 308 days ago · 24 km deep · 77 km away
  20. 2.481 km S of Unalaska, Alaska · 308 days ago · 35 km deep · 10 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak2025yktbpg. Read Mon, Oct 5, 2026, 2:39 PM UTC.