Alaska earthquakes

M3.1 earthquake 96 km NE of Atka, Alaska

A magnitude 3.1 earthquake struck 96 km NE of Atka, Alaska on Fri, Jul 31, 2026, 7:50 PM HADT (04:50 UTC), 208 km (129 mi) below the surface.

A larger quake followed: M4.5 76 km ESE of Atka, Alaska. This one was a foreshock.

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The earthquake

Magnitude
3.1 (ml), minor
Local time
UTC
2026-08-01 04:50:14 UTC
Depth
207.9 km (129.2 mi), intermediate-depth
Epicenter
52.697° N, 173.043° 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.

Location uncertainty
About 18.8 km horizontally, 12.2 km in depth
Magnitude uncertainty
±0.08
Depth from
From location
Station coverage gap
159°
Stations used
20

Nearby

Within 100 km, magnitude 1.5 and up: 12 since this one and 19 in the 30 days before it.

After

  1. 3.528 km NNW of Atka, Alaska · 57 days ago · 242 km deep · 98 km away
  2. 4.576 km ESE of Atka, Alaska · 50 days ago · 52 km deep · 95 km away · felt by 1
  3. 2.952 km ESE of Atka, Alaska · 47 days ago · 89 km deep · 85 km away
  4. 2.9171 km ENE of Atka, Alaska · 44 days ago · 183 km deep · 80 km away
  5. 2.586 km ESE of Atka, Alaska · 41 days ago · 61 km deep · 90 km away
  6. 2.771 km ENE of Atka, Alaska · 40 days ago · 9 km deep · 28 km away
  7. 3.6130 km E of Atka, Alaska · 32 days ago · 73 km deep · 76 km away
  8. 2.940 km NE of Atka, Alaska · 31 days ago · 182 km deep · 59 km away
  9. 2.856 km ESE of Atka, Alaska · 27 days ago · 12 km deep · 77 km away
  10. 2.9119 km ESE of Atka, Alaska · 16 days ago · 29 km deep · 100 km away
  11. 2.668 km E of Atka, Alaska · 16 days ago · 4 km deep · 58 km away
  12. 2.471 km ESE of Atka, Alaska · 15 days ago · 60 km deep · 82 km away

Before

  1. 3.351 km SE of Atka, Alaska · 61 days ago · 74 km deep · 96 km away
  2. 2.674 km E of Atka, Alaska · 63 days ago · 6 km deep · 52 km away
  3. 2.770 km ESE of Atka, Alaska · 64 days ago · 35 km deep · 95 km away
  4. 2.9111 km NE of Atka, Alaska · 71 days ago · 203 km deep · 38 km away
  5. 2.983 km ESE of Atka, Alaska · 72 days ago · 60 km deep · 94 km away
  6. 2.869 km E of Atka, Alaska · 73 days ago · 9 km deep · 61 km away
  7. 2.020 km ESE of Atka, Alaska · 74 days ago · 141 km deep · 90 km away
  8. 3.020 km N of Atka, Alaska · 74 days ago · 3 km deep · 85 km away
  9. 2.817 km N of Atka, Alaska · 74 days ago · 1 km deep · 86 km away
  10. 2.822 km N of Atka, Alaska · 74 days ago · 5 km deep · 85 km away
  11. 2.230 km ESE of Atka, Alaska · 77 days ago · 159 km deep · 83 km away
  12. 2.831 km NNE of Atka, Alaska · 78 days ago · 161 km deep · 69 km away
  13. 2.777 km E of Atka, Alaska · 81 days ago · 25 km deep · 69 km away
  14. 3.271 km ESE of Atka, Alaska · 85 days ago · 89 km deep · 79 km away
  15. 3.488 km NE of Atka, Alaska · 85 days ago · 217 km deep · 17 km away
  16. 2.928 km SE of Atka, Alaska · 86 days ago · 12 km deep · 94 km away
  17. 2.760 km ESE of Atka, Alaska · 87 days ago · 98 km deep · 86 km away
  18. 1.723 km ENE of Atka, Alaska · 87 days ago · 13 km deep · 73 km away
  19. 3.8138 km E of Atka, Alaska · 87 days ago · 10 km deep · 83 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000tift (also filed as aka2026pbyiei). Read Mon, Sep 28, 2026, 10:45 AM UTC.