Alaska earthquakes

M1.7 earthquake 3 km E of Unalaska, Alaska

A magnitude 1.7 earthquake struck 3 km E of Unalaska, Alaska on Fri, Mar 2, 2018, 9:31 PM AKST (06:31 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M3.9 98 km SSW 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
1.7 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2018-03-03 06:31:30 UTC
Depth
9.8 km (6.1 mi), shallow
Epicenter
53.869° N, 166.480° W
Region
Alaska
Tsunami flag
No
Status
Reviewed by a seismologist

Magnitude estimates

Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.

Mag.ScaleComputed byNotes
1.7ML, local (Richter)Alaska Earthquake CenterPreferred · Preliminary
1.67ML, local (Richter)AVFinal · ±0.259 · 15 stations

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
19

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 93 in the 60 days after this one and 32 in the 30 days before it.

After

  1. 1.777 km SE of Unalaska, Alaska · 3134 days ago · 12 km deep · 74 km away
  2. 1.979 km SSE of Akutan, Alaska · 3134 days ago · 1 km deep · 97 km away
  3. 2.266 km S of Unalaska, Alaska · 3133 days ago · 45 km deep · 66 km away
  4. 1.963 km SSW of Unalaska, Alaska · 3132 days ago · 42 km deep · 64 km away
  5. 2.163 km S of Unalaska, Alaska · 3132 days ago · 26 km deep · 64 km away
  6. 3.490 km SSW of Unalaska, Alaska · 3132 days ago · 35 km deep · 90 km away
  7. 1.776 km SSE of Unalaska, Alaska · 3132 days ago · 36 km deep · 74 km away
  8. 3.442 km ESE of Unalaska, Alaska · 3132 days ago · 67 km deep · 40 km away
  9. 1.883 km SSE of Akutan, Alaska · 3132 days ago · 50 km deep · 99 km away
  10. 2.477 km S of Unalaska, Alaska · 3131 days ago · 32 km deep · 77 km away
  11. 3.433 km E of Akutan, Alaska · 3131 days ago · 85 km deep · 83 km away
  12. 1.664 km SW of Unalaska, Alaska · 3130 days ago · 11 km deep · 66 km away
  13. 1.984 km S of Unalaska, Alaska · 3130 days ago · 26 km deep · 84 km away
  14. 2.256 km SSE of Akutan, Alaska · 3130 days ago · 65 km deep · 79 km away
  15. 1.67 km NW of Dutch Harbor, Alaska · 3129 days ago · 14 km deep · 12 km away
  16. 2.146 km SW of Unalaska, Alaska · 3128 days ago · 18 km deep · 49 km away
  17. 2.039 km SSE of Unalaska, Alaska · 3127 days ago · 91 km deep · 37 km away
  18. 2.376 km SE of Akutan, Alaska · 3126 days ago · 48 km deep · 99 km away
  19. 1.762 km WSW of Unalaska, Alaska · 3124 days ago · 7 km deep · 66 km away
  20. 1.651 km SSE of Akutan, Alaska · 3123 days ago · 33 km deep · 67 km away
  21. 1.664 km WSW of Unalaska, Alaska · 3123 days ago · 13 km deep · 67 km away
  22. 1.919 km SE of Akutan, Alaska · 3123 days ago · 106 km deep · 60 km away
  23. 1.927 km SSW of Unalaska, Alaska · 3121 days ago · 82 km deep · 29 km away
  24. 1.829 km SSW of Unalaska, Alaska · 3120 days ago · 77 km deep · 30 km away
  25. 3.126 km SE of Unalaska, Alaska · 3120 days ago · 16 km deep · 24 km away
  26. 3.425 km SE of Unalaska, Alaska · 3119 days ago · 12 km deep · 22 km away
  27. 1.6Fox Islands, Aleutian Islands, Alaska · 3119 days ago · 7 km deep · 16 km away
  28. 3.553 km SE of Unalaska, Alaska · 3118 days ago · 66 km deep · 50 km away
  29. 2.981 km SSW of Unalaska, Alaska · 3118 days ago · 35 km deep · 82 km away
  30. 2.789 km S of Unalaska, Alaska · 3118 days ago · 35 km deep · 90 km away
  31. 3.486 km SSW of Unalaska, Alaska · 3118 days ago · 31 km deep · 86 km away
  32. 2.176 km SW of Unalaska, Alaska · 3118 days ago · 13 km deep · 79 km away
  33. 2.992 km S of Unalaska, Alaska · 3117 days ago · 42 km deep · 92 km away
  34. 2.483 km SSW of Unalaska, Alaska · 3117 days ago · 27 km deep · 84 km away
  35. 3.086 km SSW of Unalaska, Alaska · 3117 days ago · 73 km deep · 88 km away
  36. 1.951 km SE of Akutan, Alaska · 3115 days ago · 44 km deep · 86 km away
  37. 2.589 km S of Unalaska, Alaska · 3115 days ago · 30 km deep · 90 km away
  38. 1.943 km ESE of Unalaska, Alaska · 3114 days ago · 34 km deep · 41 km away
  39. 1.775 km SSE of Akutan, Alaska · 3113 days ago · 19 km deep · 84 km away
  40. 2.144 km SW of Unalaska, Alaska · 3111 days ago · 74 km deep · 47 km away
  41. 2.041 km SE of Akutan, Alaska · 3111 days ago · 64 km deep · 77 km away
  42. 1.79 km WSW of Akutan, Alaska · 3111 days ago · 8 km deep · 45 km away
  43. 2.550 km ESE of Akutan, Alaska · 3110 days ago · 71 km deep · 97 km away
  44. 3.285 km SSW of Unalaska, Alaska · 3110 days ago · 36 km deep · 85 km away
  45. 1.856 km SSE of Unalaska, Alaska · 3109 days ago · 44 km deep · 54 km away
  46. 1.541 km SSE of Akutan, Alaska · 3108 days ago · 61 km deep · 63 km away
  47. 3.077 km SSW of Unalaska, Alaska · 3108 days ago · 32 km deep · 77 km away
  48. 2.899 km S of Unalaska, Alaska · 3108 days ago · 34 km deep · 99 km away
  49. 1.689 km SSE of Unalaska, Alaska · 3108 days ago · 25 km deep · 87 km away
  50. 1.545 km SW of Unalaska, Alaska · 3107 days ago · 79 km deep · 47 km away
  51. 1.558 km SW of Unalaska, Alaska · 3107 days ago · 16 km deep · 61 km away
  52. 2.182 km SSW of Unalaska, Alaska · 3107 days ago · 22 km deep · 83 km away
  53. 2.329 km SSW of Unalaska, Alaska · 3106 days ago · 74 km deep · 31 km away
  54. 1.932 km SSW of Akutan, Alaska · 3106 days ago · 70 km deep · 33 km away
  55. 2.458 km SSW of Unalaska, Alaska · 3105 days ago · 64 km deep · 58 km away
  56. 2.271 km SSE of Akutan, Alaska · 3104 days ago · 46 km deep · 85 km away
  57. 2.288 km SE of Unalaska, Alaska · 3102 days ago · 26 km deep · 86 km away
  58. 1.887 km SE of Unalaska, Alaska · 3101 days ago · 17 km deep · 85 km away
  59. 1.515 km W of Akutan, Alaska · 3100 days ago · 5 km deep · 44 km away
  60. 1.571 km SW of Unalaska, Alaska · 3100 days ago · 13 km deep · 74 km away

The first 60 of 93.

Before

  1. 1.968 km WSW of Unalaska, Alaska · 3135 days ago · 14 km deep · 71 km away
  2. 2.261 km S of Unalaska, Alaska · 3136 days ago · 30 km deep · 61 km away
  3. 3.873 km S of Unalaska, Alaska · 3137 days ago · 35 km deep · 73 km away
  4. 1.943 km SW of Unalaska, Alaska · 3138 days ago · 7 km deep · 45 km away
  5. 2.045 km SSE of Unalaska, Alaska · 3139 days ago · 60 km deep · 44 km away
  6. 2.366 km SSW of Unalaska, Alaska · 3140 days ago · 26 km deep · 67 km away
  7. 2.169 km SE of Akutan, Alaska · 3140 days ago · 38 km deep · 100 km away
  8. 1.572 km WSW of Unalaska, Alaska · 3142 days ago · 13 km deep · 75 km away
  9. 2.073 km SW of Unalaska, Alaska · 3142 days ago · 13 km deep · 76 km away
  10. 2.539 km S of Akutan, Alaska · 3142 days ago · 37 km deep · 40 km away
  11. 1.86 km ESE of Unalaska, Alaska · 3144 days ago · 11 km deep · 4 km away
  12. 3.480 km SSW of Unalaska, Alaska · 3147 days ago · 43 km deep · 80 km away
  13. 2.137 km S of Akutan, Alaska · 3148 days ago · 47 km deep · 51 km away
  14. 2.187 km SE of Unalaska, Alaska · 3149 days ago · 23 km deep · 85 km away
  15. 2.487 km SSW of Unalaska, Alaska · 3152 days ago · 19 km deep · 88 km away
  16. 2.271 km WSW of Unalaska, Alaska · 3152 days ago · 6 km deep · 74 km away
  17. 2.192 km SE of Unalaska, Alaska · 3153 days ago · 23 km deep · 90 km away
  18. 2.271 km SE of Unalaska, Alaska · 3153 days ago · 29 km deep · 69 km away
  19. 1.770 km SE of Unalaska, Alaska · 3153 days ago · 49 km deep · 67 km away
  20. 3.372 km SE of Unalaska, Alaska · 3153 days ago · 32 km deep · 70 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0182un2tsf (also filed as ak18577750, av61674896). Read Thu, Oct 1, 2026, 7:25 AM UTC.