Alaska earthquakes

M2.8 earthquake 194 km SSE of Atka, Alaska

A magnitude 2.8 earthquake struck 194 km SSE of Atka, Alaska on Tue, Aug 18, 2026, 1:54 PM HADT (22:54 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M3.6 109 km SE 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
2.8 (ml), micro
Local time
UTC
2026-08-18 22:54:27 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
50.711° N, 172.720° 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 10.2 km horizontally, 2.0 km in depth
Magnitude uncertainty
±0.13
Depth from
Operator assigned
Station coverage gap
322°, poorly surrounded by stations
Stations used
10

Nearby

Within 100 km, magnitude 1.5 and up: 10 since this one and 54 in the 30 days before it.

After

  1. 2.8202 km SE of Atka, Alaska · 41 days ago · 10 km deep · 41 km away
  2. 2.9165 km SE of Atka, Alaska · 34 days ago · 10 km deep · 31 km away
  3. 2.895 km SE of Atka, Alaska · 32 days ago · 5 km deep · 99 km away
  4. 3.3100 km SE of Atka, Alaska · 22 days ago · 12 km deep · 96 km away
  5. 2.6158 km S of Atka, Alaska · 22 days ago · 10 km deep · 91 km away
  6. 3.1223 km SSE of Atka, Alaska · 18 days ago · 20 km deep · 53 km away
  7. 2.599 km SSE of Atka, Alaska · 17 days ago · 13 km deep · 95 km away
  8. 3.6109 km SE of Atka, Alaska · 12 days ago · 35 km deep · 89 km away
  9. 2.9193 km S of Atka, Alaska · 9 days ago · 19 km deep · 97 km away
  10. 2.7153 km S of Atka, Alaska · 2 days ago · 20 km deep · 88 km away

Before

  1. 2.7112 km SE of Atka, Alaska · 43 days ago · 10 km deep · 84 km away
  2. 2.6158 km S of Atka, Alaska · 46 days ago · 10 km deep · 84 km away
  3. 3.1153 km S of Atka, Alaska · 47 days ago · 20 km deep · 92 km away
  4. 2.7103 km SE of Atka, Alaska · 47 days ago · 10 km deep · 94 km away
  5. 2.6160 km SSE of Atka, Alaska · 53 days ago · 20 km deep · 34 km away
  6. 2.597 km SE of Atka, Alaska · 54 days ago · 20 km deep · 100 km away
  7. 2.6114 km SE of Atka, Alaska · 55 days ago · 35 km deep · 90 km away
  8. 2.5119 km SE of Atka, Alaska · 55 days ago · 20 km deep · 75 km away
  9. 2.6147 km SSE of Atka, Alaska · 55 days ago · 12 km deep · 67 km away
  10. 2.696 km SE of Atka, Alaska · 56 days ago · 20 km deep · 98 km away
  11. 3.196 km SSE of Atka, Alaska · 56 days ago · 8 km deep · 98 km away
  12. 2.999 km SE of Atka, Alaska · 57 days ago · 16 km deep · 98 km away
  13. 2.8101 km SE of Atka, Alaska · 59 days ago · 35 km deep · 95 km away
  14. 3.597 km SSE of Atka, Alaska · 61 days ago · 11 km deep · 97 km away
  15. 2.5170 km S of Atka, Alaska · 62 days ago · 5 km deep · 80 km away
  16. 2.6191 km S of Atka, Alaska · 63 days ago · 12 km deep · 98 km away
  17. 2.698 km SE of Atka, Alaska · 64 days ago · 10 km deep · 98 km away
  18. 3.9120 km SE of Atka, Alaska · 65 days ago · 10 km deep · 74 km away
  19. 2.5101 km SE of Atka, Alaska · 65 days ago · 20 km deep · 94 km away
  20. 2.8117 km SE of Atka, Alaska · 66 days ago · 10 km deep · 80 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000tlu5 (also filed as aka2026qiswhq). Read Wed, Sep 30, 2026, 12:32 PM UTC.