Alaska earthquakes

M1.8 earthquake 72 km SE of Unalaska, Alaska

A magnitude 1.8 earthquake struck 72 km SE of Unalaska, Alaska on Fri, Oct 20, 2017, 4:33 PM AKDT (00:33 UTC), 21 km (13 mi) below the surface.

A larger quake followed: M4.6 109 km S of Unalaska, Alaska. This one was a foreshock.

Unalaska 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
2017-10-21 00:33:00 UTC
Depth
21.0 km (13.0 mi), shallow
Epicenter
53.410° N, 165.757° 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
13

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 105 in the 60 days after this one and 41 in the 30 days before it.

After

  1. 2.471 km ESE of Akutan, Alaska · 3268 days ago · 56 km deep · 91 km away
  2. 1.944 km SE of Unalaska, Alaska · 3268 days ago · 51 km deep · 29 km away
  3. 2.076 km SSE of Akutan, Alaska · 3267 days ago · 22 km deep · 27 km away
  4. 1.759 km SE of Unalaska, Alaska · 3266 days ago · 39 km deep · 13 km away
  5. 2.4107 km SE of Akutan, Alaska · 3266 days ago · 25 km deep · 76 km away
  6. 2.188 km SE of Akutan, Alaska · 3266 days ago · 58 km deep · 70 km away
  7. 2.631 km ESE of Unalaska, Alaska · 3266 days ago · 72 km deep · 42 km away
  8. 1.837 km SE of Akutan, Alaska · 3265 days ago · 67 km deep · 66 km away
  9. 2.176 km ESE of Akutan, Alaska · 3265 days ago · 83 km deep · 89 km away
  10. 2.176 km ESE of Akutan, Alaska · 3265 days ago · 52 km deep · 78 km away
  11. 1.782 km SE of Unalaska, Alaska · 3265 days ago · 18 km deep · 9 km away
  12. 3.3117 km SSE of Akutan, Alaska · 3264 days ago · 29 km deep · 45 km away
  13. 2.139 km SSW of Unalaska, Alaska · 3263 days ago · 64 km deep · 61 km away
  14. 2.078 km SSE of Akutan, Alaska · 3263 days ago · 14 km deep · 27 km away
  15. 1.752 km S of Unalaska, Alaska · 3263 days ago · 24 km deep · 53 km away
  16. 2.272 km SE of Akutan, Alaska · 3262 days ago · 61 km deep · 46 km away
  17. 1.981 km SSW of Unalaska, Alaska · 3262 days ago · 23 km deep · 79 km away
  18. 3.488 km SE of Akutan, Alaska · 3261 days ago · 44 km deep · 53 km away
  19. 1.890 km SE of Akutan, Alaska · 3260 days ago · 17 km deep · 56 km away
  20. 2.158 km SSE of Unalaska, Alaska · 3260 days ago · 23 km deep · 40 km away
  21. 2.475 km SE of Akutan, Alaska · 3260 days ago · 47 km deep · 73 km away
  22. 2.269 km ESE of Akutan, Alaska · 3258 days ago · 39 km deep · 76 km away
  23. 1.858 km SE of Unalaska, Alaska · 3258 days ago · 35 km deep · 15 km away
  24. 2.237 km ENE of Akutan, Alaska · 3257 days ago · 76 km deep · 97 km away
  25. 2.053 km SW of Unalaska, Alaska · 3257 days ago · 72 km deep · 85 km away
  26. 2.083 km SSE of Unalaska, Alaska · 3257 days ago · 25 km deep · 37 km away
  27. 1.950 km S of Unalaska, Alaska · 3257 days ago · 59 km deep · 53 km away
  28. 2.774 km SSE of Akutan, Alaska · 3256 days ago · 62 km deep · 44 km away
  29. 1.646 km S of Unalaska, Alaska · 3256 days ago · 62 km deep · 43 km away
  30. 2.376 km SSE of Akutan, Alaska · 3256 days ago · 53 km deep · 45 km away
  31. 2.97 km ENE of Dutch Harbor, Alaska · 3255 days ago · 125 km deep · 71 km away
  32. 1.777 km SE of Unalaska, Alaska · 3255 days ago · 55 km deep · 11 km away
  33. 1.846 km SE of Unalaska, Alaska · 3255 days ago · 31 km deep · 27 km away
  34. 2.774 km SSE of Akutan, Alaska · 3254 days ago · 49 km deep · 33 km away
  35. 4.6109 km S of Unalaska, Alaska · 3254 days ago · 31 km deep · 89 km away
  36. 2.2124 km S of Unalaska, Alaska · 3254 days ago · 5 km deep · 91 km away
  37. 2.0129 km S of Unalaska, Alaska · 3254 days ago · 13 km deep · 98 km away
  38. 2.089 km ESE of Akutan, Alaska · 3254 days ago · 52 km deep · 98 km away
  39. 2.6125 km S of Unalaska, Alaska · 3254 days ago · 2 km deep · 96 km away
  40. 3.6126 km S of Unalaska, Alaska · 3254 days ago · 10 km deep · 95 km away
  41. 2.120 km ESE of Unalaska, Alaska · 3254 days ago · 81 km deep · 54 km away
  42. 2.3124 km S of Unalaska, Alaska · 3254 days ago · 1 km deep · 95 km away
  43. 2.083 km SSE of Akutan, Alaska · 3254 days ago · 26 km deep · 33 km away
  44. 1.557 km SW of Unalaska, Alaska · 3252 days ago · 13 km deep · 100 km away
  45. 1.970 km SSE of Akutan, Alaska · 3252 days ago · 13 km deep · 29 km away
  46. 2.427 km S of Akutan, Alaska · 3251 days ago · 92 km deep · 53 km away
  47. 2.892 km S of Unalaska, Alaska · 3251 days ago · 34 km deep · 80 km away
  48. 1.992 km SSW of Unalaska, Alaska · 3251 days ago · 26 km deep · 95 km away
  49. 4.2119 km S of Unalaska, Alaska · 3250 days ago · 32 km deep · 95 km away
  50. 1.816 km WSW of Dutch Harbor, Alaska · 3250 days ago · 5 km deep · 84 km away
  51. 1.862 km SE of Unalaska, Alaska · 3248 days ago · 49 km deep · 12 km away
  52. 1.55 km SW of Unalaska, Alaska · 3248 days ago · 12 km deep · 73 km away
  53. 1.678 km S of Unalaska, Alaska · 3247 days ago · 35 km deep · 66 km away
  54. 2.6153 km SSE of Akutan, Alaska · 3245 days ago · 40 km deep · 97 km away
  55. 1.5126 km S of Unalaska, Alaska · 3245 days ago · 16 km deep · 94 km away
  56. 2.334 km SSW of Akutan, Alaska · 3245 days ago · 68 km deep · 47 km away
  57. 1.960 km SE of Unalaska, Alaska · 3245 days ago · 45 km deep · 13 km away
  58. 2.5100 km SE of Akutan, Alaska · 3244 days ago · 35 km deep · 64 km away
  59. 1.886 km SE of Akutan, Alaska · 3244 days ago · 51 km deep · 63 km away
  60. 2.424 km S of Unalaska, Alaska · 3244 days ago · 76 km deep · 56 km away

The first 60 of 105.

Before

  1. 1.966 km SSE of Akutan, Alaska · 3268 days ago · 24 km deep · 27 km away
  2. 1.619 km SSE of Akutan, Alaska · 3269 days ago · 66 km deep · 64 km away
  3. 1.764 km SE of Unalaska, Alaska · 3269 days ago · 7 km deep · 10 km away
  4. 2.048 km SSE of Akutan, Alaska · 3270 days ago · 57 km deep · 36 km away
  5. 2.2107 km SSE of Akutan, Alaska · 3270 days ago · 11 km deep · 44 km away
  6. 1.950 km SE of Unalaska, Alaska · 3271 days ago · 26 km deep · 24 km away
  7. 1.677 km S of Unalaska, Alaska · 3272 days ago · 22 km deep · 62 km away
  8. 1.757 km SW of Unalaska, Alaska · 3273 days ago · 17 km deep · 96 km away
  9. 2.117 km E of Akutan, Alaska · 3274 days ago · 80 km deep · 84 km away
  10. 2.118 km SE of Akutan, Alaska · 3276 days ago · 77 km deep · 68 km away
  11. 2.160 km SW of Unalaska, Alaska · 3276 days ago · 15 km deep · 98 km away
  12. 1.89 km SSE of Unalaska, Alaska · 3278 days ago · 79 km deep · 64 km away
  13. 1.985 km SE of Akutan, Alaska · 3278 days ago · 16 km deep · 59 km away
  14. 4.167 km SW of Unalaska, Alaska · 3279 days ago · 96 km deep · 93 km away
  15. 1.765 km SW of Unalaska, Alaska · 3279 days ago · 14 km deep · 100 km away
  16. 2.1Fox Islands, Aleutian Islands, Alaska · 3281 days ago · 76 km deep · 68 km away
  17. 2.678 km ESE of Akutan, Alaska · 3282 days ago · 54 km deep · 82 km away
  18. 2.290 km SE of Unalaska, Alaska · 3283 days ago · 20 km deep · 18 km away
  19. 2.645 km S of Akutan, Alaska · 3284 days ago · 76 km deep · 36 km away
  20. 1.749 km SSE of Akutan, Alaska · 3284 days ago · 2 km deep · 35 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak017di873vv (also filed as ak17097329). Read Thu, Oct 1, 2026, 7:50 PM UTC.