Alaska earthquakes

M2.1 earthquake 64 km SW of Unalaska, Alaska

A magnitude 2.1 earthquake struck 64 km SW of Unalaska, Alaska on Tue, Dec 30, 2025, 10:20 AM AKST (19:20 UTC), 78 km (48 mi) below the surface.

A larger quake followed: M4.1 85 km E of Nikolski, 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
2.1 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2025-12-30 19:20:12 UTC
Depth
77.8 km (48.3 mi), intermediate-depth
Epicenter
53.523° N, 167.318° 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 39.0 km horizontally, 6.1 km in depth
Magnitude uncertainty
±0.30
Station coverage gap
184°, poorly surrounded by stations
Stations used
11

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 72 in the 60 days after this one and 38 in the 30 days before it.

After

  1. 2.588 km S of Unalaska, Alaska · 276 days ago · 28 km deep · 60 km away
  2. 2.883 km SW of Unalaska, Alaska · 276 days ago · 0 km deep · 29 km away
  3. 2.266 km S of Unalaska, Alaska · 276 days ago · 61 km deep · 65 km away
  4. 1.85 km WNW of Dutch Harbor, Alaska · 275 days ago · 8 km deep · 62 km away
  5. 2.171 km SSE of Unalaska, Alaska · 275 days ago · 36 km deep · 75 km away
  6. 2.450 km ESE of Nikolski, Alaska · 274 days ago · 50 km deep · 97 km away
  7. 2.282 km SW of Unalaska, Alaska · 274 days ago · 5 km deep · 28 km away
  8. 2.762 km ESE of Nikolski, Alaska · 274 days ago · 27 km deep · 100 km away
  9. 3.940 km ESE of Nikolski, Alaska · 274 days ago · 44 km deep · 96 km away
  10. 3.956 km ENE of Nikolski, Alaska · 273 days ago · 62 km deep · 70 km away
  11. 2.699 km SSW of Unalaska, Alaska · 273 days ago · 27 km deep · 52 km away
  12. 2.490 km SSW of Unalaska, Alaska · 273 days ago · 26 km deep · 60 km away
  13. 2.848 km SE of Unalaska, Alaska · 273 days ago · 24 km deep · 87 km away
  14. 2.631 km SSW of Akutan, Alaska · 272 days ago · 87 km deep · 98 km away
  15. 2.06 km W of Unalaska, Alaska · 272 days ago · 12 km deep · 59 km away
  16. 2.869 km SSE of Unalaska, Alaska · 271 days ago · 26 km deep · 85 km away
  17. 3.385 km E of Nikolski, Alaska · 270 days ago · 35 km deep · 83 km away
  18. 4.081 km E of Nikolski, Alaska · 270 days ago · 42 km deep · 72 km away
  19. 2.854 km E of Nikolski, Alaska · 266 days ago · 35 km deep · 86 km away
  20. 3.662 km E of Nikolski, Alaska · 264 days ago · 43 km deep · 78 km away
  21. 3.391 km E of Nikolski, Alaska · 264 days ago · 35 km deep · 60 km away
  22. 2.6107 km S of Unalaska, Alaska · 263 days ago · 12 km deep · 88 km away
  23. 1.76 km WSW of Dutch Harbor, Alaska · 261 days ago · 10 km deep · 60 km away
  24. 2.26 km WSW of Dutch Harbor, Alaska · 261 days ago · 10 km deep · 60 km away
  25. 2.16 km W of Dutch Harbor, Alaska · 261 days ago · 11 km deep · 60 km away
  26. 2.562 km ENE of Nikolski, Alaska · 261 days ago · 124 km deep · 60 km away
  27. 3.289 km S of Unalaska, Alaska · 260 days ago · 19 km deep · 61 km away
  28. 3.369 km E of Nikolski, Alaska · 259 days ago · 32 km deep · 83 km away
  29. 1.994 km SSW of Unalaska, Alaska · 258 days ago · 35 km deep · 57 km away
  30. 2.112 km SSW of Unalaska, Alaska · 258 days ago · 95 km deep · 53 km away
  31. 4.055 km SE of Unalaska, Alaska · 257 days ago · 55 km deep · 92 km away
  32. 2.924 km SE of Unalaska, Alaska · 257 days ago · 84 km deep · 76 km away
  33. 3.597 km SSW of Unalaska, Alaska · 257 days ago · 29 km deep · 48 km away
  34. 2.761 km SW of Unalaska, Alaska · 256 days ago · 11 km deep · 20 km away
  35. 1.86 km N of Dutch Harbor, Alaska · 255 days ago · 10 km deep · 69 km away
  36. 2.273 km SW of Unalaska, Alaska · 254 days ago · 12 km deep · 10 km away
  37. 2.067 km ESE of Nikolski, Alaska · 253 days ago · 21 km deep · 96 km away
  38. 3.8105 km S of Unalaska, Alaska · 252 days ago · 43 km deep · 73 km away
  39. 3.489 km SSW of Unalaska, Alaska · 248 days ago · 57 km deep · 39 km away
  40. 3.183 km S of Unalaska, Alaska · 246 days ago · 35 km deep · 80 km away
  41. 3.4123 km S of Unalaska, Alaska · 246 days ago · 20 km deep · 95 km away
  42. 2.552 km ESE of Unalaska, Alaska · 241 days ago · 62 km deep · 98 km away
  43. 2.938 km SSE of Unalaska, Alaska · 240 days ago · 91 km deep · 65 km away
  44. 2.4100 km E of Nikolski, Alaska · 239 days ago · 20 km deep · 67 km away
  45. 2.146 km ESE of Unalaska, Alaska · 239 days ago · 36 km deep · 98 km away
  46. 2.368 km NE of Nikolski, Alaska · 239 days ago · 76 km deep · 59 km away
  47. 2.370 km ESE of Nikolski, Alaska · 238 days ago · 28 km deep · 90 km away
  48. 2.355 km SW of Unalaska, Alaska · 238 days ago · 7 km deep · 10 km away
  49. 2.573 km S of Unalaska, Alaska · 237 days ago · 35 km deep · 70 km away
  50. 2.036 km SE of Unalaska, Alaska · 237 days ago · 87 km deep · 76 km away
  51. 2.4120 km S of Unalaska, Alaska · 237 days ago · 8 km deep · 93 km away
  52. 2.048 km ENE of Nikolski, Alaska · 237 days ago · 93 km deep · 74 km away
  53. 2.15 km W of Dutch Harbor, Alaska · 233 days ago · 8 km deep · 62 km away
  54. 2.879 km SSE of Unalaska, Alaska · 233 days ago · 10 km deep · 86 km away
  55. 4.185 km E of Nikolski, Alaska · 232 days ago · 35 km deep · 81 km away
  56. 3.257 km E of Nikolski, Alaska · 231 days ago · 48 km deep · 80 km away
  57. 2.191 km WSW of Dutch Harbor, Alaska · 230 days ago · 96 km deep · 42 km away
  58. 2.223 km S of Unalaska, Alaska · 230 days ago · 94 km deep · 55 km away
  59. 2.282 km SW of Unalaska, Alaska · 227 days ago · 84 km deep · 17 km away
  60. 2.614 km ENE of Unalaska, Alaska · 226 days ago · 92 km deep · 78 km away

The first 60 of 72.

Before

  1. 3.083 km E of Nikolski, Alaska · 281 days ago · 48 km deep · 67 km away
  2. 1.56 km N of Dutch Harbor, Alaska · 281 days ago · 14 km deep · 69 km away
  3. 2.36 km W of Dutch Harbor, Alaska · 281 days ago · 11 km deep · 60 km away
  4. 2.26 km WSW of Dutch Harbor, Alaska · 282 days ago · 12 km deep · 59 km away
  5. 2.392 km S of Unalaska, Alaska · 282 days ago · 22 km deep · 66 km away
  6. 1.520 km ENE of Dutch Harbor, Alaska · 282 days ago · 1 km deep · 86 km away
  7. 2.2100 km SSW of Unalaska, Alaska · 283 days ago · 8 km deep · 67 km away
  8. 2.460 km SSW of Unalaska, Alaska · 284 days ago · 11 km deep · 23 km away
  9. 1.56 km W of Dutch Harbor, Alaska · 284 days ago · 9 km deep · 61 km away
  10. 2.290 km SW of Unalaska, Alaska · 286 days ago · 68 km deep · 28 km away
  11. 2.019 km E of Unalaska, Alaska · 287 days ago · 84 km deep · 81 km away
  12. 1.988 km S of Unalaska, Alaska · 287 days ago · 19 km deep · 70 km away
  13. 3.661 km SE of Unalaska, Alaska · 287 days ago · 52 km deep · 94 km away
  14. 3.74 km WNW of Dutch Harbor, Alaska · 287 days ago · 9 km deep · 63 km away
  15. 3.75 km W of Dutch Harbor, Alaska · 287 days ago · 6 km deep · 62 km away · felt by 4
  16. 2.2128 km SSW of Unalaska, Alaska · 288 days ago · 10 km deep · 90 km away
  17. 3.250 km E of Nikolski, Alaska · 289 days ago · 65 km deep · 85 km away
  18. 2.764 km E of Nikolski, Alaska · 289 days ago · 35 km deep · 80 km away
  19. 2.156 km WSW of Unalaska, Alaska · 290 days ago · 78 km deep · 11 km away
  20. 3.533 km SSE of Unalaska, Alaska · 290 days ago · 70 km deep · 61 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak2025zrvbgn. Read Sat, Oct 3, 2026, 4:23 AM UTC.