Alaska earthquakes

M2.1 earthquake 43 km NNE of Adak, Alaska

A magnitude 2.1 earthquake struck 43 km NNE of Adak, Alaska on Fri, Sep 29, 2017, 7:39 PM HADT (04:39 UTC), 166 km (103 mi) below the surface.

A larger quake followed: M4.0 80 km ENE 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
2.1 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2017-09-30 04:39:05 UTC
Depth
166.1 km (103.2 mi), intermediate-depth
Epicenter
52.240° N, 176.394° 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.

Stations used
23

Nearby

Within 100 km, magnitude 1.5 and up: 76 in the 60 days after this one and 29 in the 30 days before it.

After

  1. 1.7Andreanof Islands, Aleutian Islands, Alaska · 3290 days ago · 63 km deep · 51 km away
  2. 1.936 km NE of Adak, Alaska · 3290 days ago · 7 km deep · 23 km away
  3. 1.955 km ESE of Adak, Alaska · 3290 days ago · 51 km deep · 76 km away
  4. 1.980 km ESE of Adak, Alaska · 3288 days ago · 5 km deep · 84 km away
  5. 2.267 km W of Adak, Alaska · 3284 days ago · 13 km deep · 92 km away
  6. 2.151 km SW of Adak, Alaska · 3283 days ago · 34 km deep · 92 km away
  7. 1.957 km SSE of Adak, Alaska · 3283 days ago · 26 km deep · 91 km away
  8. 1.945 km WSW of Adak, Alaska · 3282 days ago · 42 km deep · 85 km away
  9. 2.2Andreanof Islands, Aleutian Islands, Alaska · 3282 days ago · 15 km deep · 99 km away
  10. 2.542 km SSE of Adak, Alaska · 3278 days ago · 53 km deep · 79 km away
  11. 1.756 km SW of Adak, Alaska · 3276 days ago · 49 km deep · 99 km away
  12. 2.275 km ESE of Adak, Alaska · 3276 days ago · 46 km deep · 83 km away
  13. 4.080 km ENE of Adak, Alaska · 3275 days ago · 188 km deep · 52 km away
  14. 2.648 km NW of Adak, Alaska · 3272 days ago · 183 km deep · 43 km away
  15. 2.282 km ESE of Adak, Alaska · 3272 days ago · 47 km deep · 97 km away
  16. 2.283 km ESE of Adak, Alaska · 3272 days ago · 57 km deep · 96 km away
  17. 2.566 km SE of Adak, Alaska · 3271 days ago · 27 km deep · 95 km away
  18. 2.460 km SSE of Adak, Alaska · 3270 days ago · 13 km deep · 99 km away
  19. 2.726 km ESE of Adak, Alaska · 3270 days ago · 78 km deep · 49 km away
  20. 1.986 km E of Adak, Alaska · 3268 days ago · 3 km deep · 84 km away
  21. 2.361 km WSW of Adak, Alaska · 3267 days ago · 21 km deep · 99 km away
  22. 2.553 km ESE of Adak, Alaska · 3265 days ago · 66 km deep · 66 km away
  23. 2.676 km ESE of Adak, Alaska · 3264 days ago · 21 km deep · 82 km away
  24. 2.052 km SSE of Adak, Alaska · 3260 days ago · 24 km deep · 92 km away
  25. 2.246 km ESE of Adak, Alaska · 3260 days ago · 54 km deep · 66 km away
  26. 2.054 km SSE of Adak, Alaska · 3260 days ago · 27 km deep · 91 km away
  27. 1.970 km SE of Adak, Alaska · 3259 days ago · 28 km deep · 95 km away
  28. 1.939 km ENE of Adak, Alaska · 3259 days ago · 6 km deep · 27 km away
  29. 1.739 km NE of Adak, Alaska · 3258 days ago · 6 km deep · 24 km away
  30. 2.471 km ENE of Adak, Alaska · 3257 days ago · 152 km deep · 50 km away
  31. 1.658 km SSE of Adak, Alaska · 3257 days ago · 26 km deep · 93 km away
  32. 1.656 km SSW of Adak, Alaska · 3257 days ago · 48 km deep · 100 km away
  33. 2.148 km SW of Adak, Alaska · 3256 days ago · 43 km deep · 91 km away
  34. 1.954 km SSE of Adak, Alaska · 3256 days ago · 24 km deep · 87 km away
  35. 2.418 km S of Adak, Alaska · 3255 days ago · 61 km deep · 61 km away
  36. 2.049 km S of Adak, Alaska · 3252 days ago · 41 km deep · 90 km away
  37. 1.9Andreanof Islands, Aleutian Islands, Alaska · 3252 days ago · 46 km deep · 80 km away
  38. 1.643 km S of Adak, Alaska · 3250 days ago · 47 km deep · 85 km away
  39. 1.623 km ESE of Adak, Alaska · 3250 days ago · 66 km deep · 49 km away
  40. 1.762 km SE of Adak, Alaska · 3250 days ago · 26 km deep · 88 km away
  41. 2.573 km SE of Adak, Alaska · 3250 days ago · 14 km deep · 98 km away
  42. 2.038 km S of Adak, Alaska · 3250 days ago · 42 km deep · 80 km away
  43. 2.069 km NW of Adak, Alaska · 3249 days ago · 171 km deep · 60 km away
  44. 1.943 km SE of Adak, Alaska · 3249 days ago · 48 km deep · 72 km away
  45. 1.857 km S of Adak, Alaska · 3249 days ago · 23 km deep · 97 km away
  46. 2.035 km NE of Adak, Alaska · 3248 days ago · 5 km deep · 24 km away
  47. 2.871 km W of Adak, Alaska · 3248 days ago · 106 km deep · 98 km away
  48. 2.144 km SE of Adak, Alaska · 3247 days ago · 47 km deep · 77 km away
  49. 2.240 km SSE of Adak, Alaska · 3246 days ago · 19 km deep · 76 km away
  50. 2.142 km SSW of Adak, Alaska · 3245 days ago · 21 km deep · 86 km away
  51. 1.854 km SSE of Adak, Alaska · 3245 days ago · 22 km deep · 91 km away
  52. 2.924 km SSW of Adak, Alaska · 3244 days ago · 60 km deep · 69 km away
  53. 2.164 km SE of Adak, Alaska · 3244 days ago · 22 km deep · 85 km away
  54. 1.77 km NE of Adak, Alaska · 3243 days ago · 7 km deep · 37 km away
  55. 1.8Andreanof Islands, Aleutian Islands, Alaska · 3242 days ago · 59 km deep · 63 km away
  56. 2.065 km ESE of Adak, Alaska · 3242 days ago · 55 km deep · 81 km away
  57. 2.467 km ENE of Adak, Alaska · 3242 days ago · 154 km deep · 50 km away
  58. 1.732 km SSW of Adak, Alaska · 3241 days ago · 45 km deep · 77 km away
  59. 2.042 km ESE of Adak, Alaska · 3241 days ago · 58 km deep · 66 km away
  60. 2.477 km SE of Adak, Alaska · 3241 days ago · 13 km deep · 98 km away

The first 60 of 76.

Before

  1. 2.784 km ESE of Adak, Alaska · 3291 days ago · 71 km deep · 88 km away
  2. 2.939 km NE of Adak, Alaska · 3291 days ago · 10 km deep · 18 km away
  3. 2.036 km NE of Adak, Alaska · 3291 days ago · 5 km deep · 23 km away
  4. 2.834 km ENE of Adak, Alaska · 3291 days ago · 14 km deep · 25 km away
  5. 1.842 km SSE of Adak, Alaska · 3291 days ago · 1 km deep · 77 km away
  6. 4.477 km ESE of Adak, Alaska · 3292 days ago · 42 km deep · 92 km away
  7. 1.943 km SW of Adak, Alaska · 3295 days ago · 47 km deep · 86 km away
  8. 1.965 km SE of Adak, Alaska · 3296 days ago · 35 km deep · 91 km away
  9. 2.257 km NE of Adak, Alaska · 3296 days ago · 147 km deep · 18 km away
  10. 1.648 km S of Adak, Alaska · 3297 days ago · 21 km deep · 89 km away
  11. 2.669 km NE of Adak, Alaska · 3297 days ago · 189 km deep · 38 km away
  12. 2.358 km ESE of Adak, Alaska · 3297 days ago · 45 km deep · 74 km away
  13. 1.850 km SW of Adak, Alaska · 3300 days ago · 44 km deep · 92 km away
  14. 2.157 km SE of Adak, Alaska · 3302 days ago · 49 km deep · 81 km away
  15. 2.749 km SE of Adak, Alaska · 3303 days ago · 46 km deep · 78 km away
  16. 2.322 km NE of Adak, Alaska · 3308 days ago · 12 km deep · 26 km away
  17. 2.357 km E of Adak, Alaska · 3310 days ago · 194 km deep · 52 km away
  18. 2.247 km ENE of Adak, Alaska · 3310 days ago · 156 km deep · 39 km away
  19. 1.993 km ESE of Adak, Alaska · 3311 days ago · 48 km deep · 96 km away
  20. 2.154 km SW of Adak, Alaska · 3311 days ago · 41 km deep · 98 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak017cjkbulu (also filed as ak16989738). Read Sat, Oct 3, 2026, 6:42 PM UTC.