Alaska earthquakes

M1.8 earthquake 27 km SSE of Unalaska, Alaska

A magnitude 1.8 earthquake struck 27 km SSE of Unalaska, Alaska on Sat, Sep 22, 2018, 2:20 AM AKDT (10:20 UTC), 68 km (42 mi) below the surface.

A larger quake followed: M4.6 16 km E of Unalaska, 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
1.8 (ml), micro
Local time
UTC
2018-09-22 10:20:50 UTC
Depth
68.2 km (42.4 mi), shallow
Epicenter
53.631° N, 166.442° 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
16

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 81 in the 60 days after this one and 60 in the 30 days before it.

After

  1. 1.720 km W of Dutch Harbor, Alaska · 2929 days ago · 5 km deep · 37 km away
  2. 1.680 km SSE of Akutan, Alaska · 2928 days ago · 26 km deep · 75 km away
  3. 1.532 km ESE of Unalaska, Alaska · 2928 days ago · 37 km deep · 25 km away
  4. 1.915 km NNE of Akutan, Alaska · 2928 days ago · 122 km deep · 86 km away
  5. 1.532 km SSE of Akutan, Alaska · 2928 days ago · 61 km deep · 68 km away
  6. 1.6Fox Islands, Aleutian Islands, Alaska · 2927 days ago · 103 km deep · 25 km away
  7. 1.877 km SSW of Unalaska, Alaska · 2927 days ago · 44 km deep · 54 km away
  8. 2.644 km ESE of Akutan, Alaska · 2926 days ago · 75 km deep · 98 km away
  9. 2.111 km SSE of Unalaska, Alaska · 2926 days ago · 85 km deep · 17 km away
  10. 1.678 km SSE of Akutan, Alaska · 2925 days ago · 23 km deep · 71 km away
  11. 1.656 km SW of Unalaska, Alaska · 2924 days ago · 15 km deep · 47 km away
  12. 1.879 km S of Unalaska, Alaska · 2923 days ago · 23 km deep · 55 km away
  13. 2.0103 km E of Nikolski, Alaska · 2923 days ago · 36 km deep · 95 km away
  14. 2.391 km E of Nikolski, Alaska · 2922 days ago · 38 km deep · 99 km away
  15. 2.882 km SSE of Akutan, Alaska · 2922 days ago · 35 km deep · 89 km away
  16. 3.398 km SSE of Akutan, Alaska · 2922 days ago · 10 km deep · 99 km away
  17. 2.336 km SSE of Akutan, Alaska · 2921 days ago · 56 km deep · 68 km away
  18. 2.592 km SSW of Unalaska, Alaska · 2921 days ago · 44 km deep · 73 km away
  19. 2.471 km SW of Unalaska, Alaska · 2919 days ago · 13 km deep · 58 km away
  20. 2.159 km SW of Unalaska, Alaska · 2916 days ago · 16 km deep · 49 km away
  21. 1.860 km SE of Akutan, Alaska · 2915 days ago · 37 km deep · 82 km away
  22. 1.934 km SSW of Unalaska, Alaska · 2915 days ago · 74 km deep · 19 km away
  23. 3.7102 km SSE of Akutan, Alaska · 2915 days ago · 34 km deep · 89 km away
  24. 1.786 km SSW of Unalaska, Alaska · 2913 days ago · 44 km deep · 69 km away
  25. 2.459 km SW of Unalaska, Alaska · 2912 days ago · 76 km deep · 50 km away
  26. 2.049 km SW of Unalaska, Alaska · 2909 days ago · 115 km deep · 47 km away
  27. 1.8115 km SE of Unalaska, Alaska · 2909 days ago · 8 km deep · 90 km away
  28. 2.314 km W of Akutan, Alaska · 2909 days ago · 7 km deep · 61 km away
  29. 1.521 km SE of Unalaska, Alaska · 2908 days ago · 9 km deep · 18 km away
  30. 2.267 km SSE of Unalaska, Alaska · 2907 days ago · 23 km deep · 40 km away
  31. 1.990 km SSE of Akutan, Alaska · 2906 days ago · 11 km deep · 75 km away
  32. 1.874 km SSE of Unalaska, Alaska · 2904 days ago · 22 km deep · 49 km away
  33. 2.669 km SE of Akutan, Alaska · 2904 days ago · 44 km deep · 94 km away
  34. 3.090 km S of Unalaska, Alaska · 2904 days ago · 10 km deep · 65 km away
  35. 2.375 km SSW of Unalaska, Alaska · 2904 days ago · 27 km deep · 52 km away
  36. 2.162 km SE of Akutan, Alaska · 2904 days ago · 48 km deep · 84 km away
  37. 3.168 km SE of Akutan, Alaska · 2904 days ago · 35 km deep · 95 km away
  38. 2.515 km W of Akutan, Alaska · 2903 days ago · 10 km deep · 61 km away
  39. 1.716 km WSW of Dutch Harbor, Alaska · 2903 days ago · 6 km deep · 33 km away
  40. 3.438 km SE of Akutan, Alaska · 2902 days ago · 70 km deep · 80 km away · felt by 1
  41. 1.678 km SW of Unalaska, Alaska · 2901 days ago · 13 km deep · 66 km away
  42. 2.162 km SSE of Unalaska, Alaska · 2901 days ago · 70 km deep · 35 km away
  43. 2.557 km SW of Unalaska, Alaska · 2901 days ago · 76 km deep · 47 km away
  44. 1.69 km SW of Akutan, Alaska · 2901 days ago · 14 km deep · 62 km away
  45. 2.163 km SE of Unalaska, Alaska · 2900 days ago · 27 km deep · 43 km away
  46. 2.087 km SSE of Akutan, Alaska · 2900 days ago · 49 km deep · 86 km away
  47. 3.077 km SE of Akutan, Alaska · 2900 days ago · 25 km deep · 95 km away
  48. 2.076 km SE of Akutan, Alaska · 2900 days ago · 34 km deep · 91 km away
  49. 1.777 km SW of Unalaska, Alaska · 2900 days ago · 21 km deep · 65 km away
  50. 3.388 km SSE of Akutan, Alaska · 2897 days ago · 21 km deep · 93 km away
  51. 1.841 km S of Akutan, Alaska · 2894 days ago · 95 km deep · 42 km away
  52. 2.298 km SSW of Unalaska, Alaska · 2893 days ago · 33 km deep · 76 km away
  53. 2.399 km SSE of Akutan, Alaska · 2893 days ago · 39 km deep · 91 km away
  54. 2.541 km ESE of Unalaska, Alaska · 2892 days ago · 70 km deep · 32 km away
  55. 2.152 km SW of Unalaska, Alaska · 2888 days ago · 17 km deep · 48 km away
  56. 1.993 km WSW of Unalaska, Alaska · 2887 days ago · 88 km deep · 92 km away
  57. 2.043 km SE of Akutan, Alaska · 2887 days ago · 24 km deep · 72 km away
  58. 2.087 km S of Unalaska, Alaska · 2886 days ago · 20 km deep · 61 km away
  59. 2.127 km S of Unalaska, Alaska · 2886 days ago · 75 km deep · 9 km away
  60. 2.662 km SSE of Unalaska, Alaska · 2884 days ago · 28 km deep · 35 km away

The first 60 of 81.

Before

  1. 1.665 km SE of Akutan, Alaska · 2932 days ago · 47 km deep · 90 km away
  2. 2.418 km W of Dutch Harbor, Alaska · 2932 days ago · 5 km deep · 36 km away
  3. 2.175 km SSE of Akutan, Alaska · 2933 days ago · 42 km deep · 62 km away
  4. 1.7109 km SSE of Unalaska, Alaska · 2934 days ago · 23 km deep · 84 km away
  5. 1.621 km W of Dutch Harbor, Alaska · 2935 days ago · 5 km deep · 38 km away
  6. 1.821 km W of Dutch Harbor, Alaska · 2935 days ago · 5 km deep · 38 km away
  7. 1.821 km W of Dutch Harbor, Alaska · 2935 days ago · 6 km deep · 38 km away
  8. 2.620 km W of Dutch Harbor, Alaska · 2935 days ago · 4 km deep · 38 km away
  9. 2.419 km W of Dutch Harbor, Alaska · 2936 days ago · 3 km deep · 37 km away
  10. 1.920 km WSW of Dutch Harbor, Alaska · 2936 days ago · 6 km deep · 35 km away
  11. 1.921 km W of Dutch Harbor, Alaska · 2936 days ago · 6 km deep · 38 km away
  12. 3.7111 km SSW of Unalaska, Alaska · 2936 days ago · 31 km deep · 90 km away
  13. 1.572 km SE of Unalaska, Alaska · 2936 days ago · 12 km deep · 52 km away
  14. 2.180 km SSE of Akutan, Alaska · 2937 days ago · 50 km deep · 80 km away
  15. 3.4Fox Islands, Aleutian Islands, Alaska · 2938 days ago · 83 km deep · 11 km away
  16. 2.777 km S of Unalaska, Alaska · 2940 days ago · 26 km deep · 52 km away
  17. 1.723 km WSW of Dutch Harbor, Alaska · 2941 days ago · 3 km deep · 38 km away
  18. 1.863 km SW of Unalaska, Alaska · 2941 days ago · 13 km deep · 56 km away
  19. 2.781 km S of Unalaska, Alaska · 2941 days ago · 28 km deep · 56 km away
  20. 1.991 km SSW of Unalaska, Alaska · 2942 days ago · 42 km deep · 68 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak018c6fhp5m. Read Wed, Sep 30, 2026, 9:30 PM UTC.