Alaska earthquakes

M3.4 earthquake 79 km NNE of Atka, Alaska

A magnitude 3.4 earthquake struck 79 km NNE of Atka, Alaska on Fri, Aug 10, 2018, 10:21 AM HADT (19:21 UTC), 246 km (153 mi) below the surface.

A larger quake followed: M4.2 77 km NE of Atka, 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
3.4 (ML, local (Richter)), minor
Magnitude from
Alaska Earthquake Center
Local time
UTC
2018-08-10 19:21:09 UTC
Depth
246.0 km (152.9 mi), intermediate-depth
Epicenter
52.857° N, 173.742° 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
26

Nearby

Within 100 km, magnitude 1.5 and up: 26 in the 60 days after this one and 9 in the 30 days before it.

After

  1. 2.881 km NNE of Atka, Alaska · 2975 days ago · 212 km deep · 3 km away
  2. 2.655 km NW of Atka, Alaska · 2975 days ago · 192 km deep · 72 km away
  3. 4.116 km SSE of Atka, Alaska · 2973 days ago · 7 km deep · 93 km away
  4. 3.31 km S of Atka, Alaska · 2973 days ago · 10 km deep · 81 km away
  5. 2.639 km NW of Atka, Alaska · 2972 days ago · 145 km deep · 72 km away
  6. 3.014 km NNW of Atka, Alaska · 2971 days ago · 124 km deep · 69 km away
  7. 3.456 km ENE of Atka, Alaska · 2968 days ago · 13 km deep · 52 km away
  8. 2.642 km WNW of Atka, Alaska · 2962 days ago · 220 km deep · 86 km away
  9. 2.829 km NW of Atka, Alaska · 2962 days ago · 197 km deep · 75 km away
  10. 2.668 km E of Atka, Alaska · 2961 days ago · 140 km deep · 70 km away
  11. 3.9140 km NE of Atka, Alaska · 2959 days ago · 213 km deep · 70 km away
  12. 2.06 km ENE of Atka, Alaska · 2959 days ago · 12 km deep · 75 km away
  13. 2.65 km ENE of Atka, Alaska · 2950 days ago · 8 km deep · 76 km away
  14. 3.397 km ENE of Atka, Alaska · 2947 days ago · 2 km deep · 76 km away
  15. 3.047 km NW of Atka, Alaska · 2946 days ago · 238 km deep · 80 km away
  16. 1.619 km S of Atka, Alaska · 2935 days ago · 6 km deep · 96 km away
  17. 2.828 km WNW of Atka, Alaska · 2934 days ago · 202 km deep · 80 km away
  18. 2.255 km NW of Atka, Alaska · 2932 days ago · 140 km deep · 86 km away
  19. 2.860 km NNW of Atka, Alaska · 2931 days ago · 218 km deep · 49 km away
  20. 2.374 km NNW of Atka, Alaska · 2931 days ago · 182 km deep · 57 km away
  21. 2.4129 km NNE of Atka, Alaska · 2931 days ago · 134 km deep · 50 km away
  22. 2.316 km SW of Atka, Alaska · 2929 days ago · 83 km deep · 96 km away
  23. 2.441 km N of Atka, Alaska · 2927 days ago · 176 km deep · 40 km away
  24. 4.277 km NE of Atka, Alaska · 2926 days ago · 252 km deep · 33 km away
  25. 2.448 km E of Atka, Alaska · 2921 days ago · 80 km deep · 79 km away
  26. 3.354 km ENE of Atka, Alaska · 2920 days ago · 279 km deep · 65 km away

Before

  1. 3.059 km NW of Atka, Alaska · 2979 days ago · 109 km deep · 89 km away
  2. 3.958 km NNW of Atka, Alaska · 2981 days ago · 221 km deep · 63 km away
  3. 1.917 km NW of Atka, Alaska · 2993 days ago · 174 km deep · 78 km away
  4. 2.755 km ENE of Atka, Alaska · 2996 days ago · 161 km deep · 62 km away
  5. 3.451 km NE of Atka, Alaska · 2997 days ago · 155 km deep · 43 km away
  6. 2.796 km NNE of Atka, Alaska · 3001 days ago · 220 km deep · 17 km away
  7. 2.762 km N of Atka, Alaska · 3001 days ago · 161 km deep · 34 km away
  8. 2.419 km SSW of Atka, Alaska · 3002 days ago · 103 km deep · 99 km away
  9. 2.863 km NNE of Atka, Alaska · 3005 days ago · 158 km deep · 17 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak018a7gqsva. Read Mon, Oct 5, 2026, 3:45 AM UTC.