Alaska earthquakes

M2.8 earthquake 149 km S of Atka, Alaska

A magnitude 2.8 earthquake struck 149 km S of Atka, Alaska on Wed, Mar 11, 2026, 3:17 AM HADT (12:17 UTC), 20 km (12 mi) below the surface.

A larger quake followed: M4.6 188 km SSE 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, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2026-03-11 12:17:06 UTC
Depth
20.0 km (12.4 mi), shallow
Epicenter
50.859° N, 174.006° 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 10.8 km horizontally, 0.0 km in depth
Magnitude uncertainty
±0.20
Depth from
Operator assigned
Station coverage gap
294°, poorly surrounded by stations
Stations used
12

Nearby

Within 100 km, magnitude 1.5 and up: 23 in the 60 days after this one and 11 in the 30 days before it.

After

  1. 3.4141 km SSE of Atka, Alaska · 203 days ago · 20 km deep · 47 km away
  2. 3.0195 km S of Atka, Alaska · 198 days ago · 20 km deep · 47 km away
  3. 2.5111 km S of Atka, Alaska · 197 days ago · 10 km deep · 40 km away
  4. 3.8187 km SSE of Atka, Alaska · 196 days ago · 11 km deep · 75 km away
  5. 2.493 km SSW of Atka, Alaska · 194 days ago · 8 km deep · 71 km away
  6. 2.793 km SSW of Atka, Alaska · 191 days ago · 3 km deep · 69 km away
  7. 2.880 km SSE of Atka, Alaska · 189 days ago · 10 km deep · 72 km away
  8. 2.8116 km SE of Atka, Alaska · 187 days ago · 35 km deep · 95 km away
  9. 3.1194 km SSE of Atka, Alaska · 185 days ago · 10 km deep · 52 km away
  10. 2.3118 km SSW of Atka, Alaska · 185 days ago · 21 km deep · 77 km away
  11. 2.8203 km S of Atka, Alaska · 185 days ago · 20 km deep · 55 km away
  12. 3.458 km S of Atka, Alaska · 185 days ago · 14 km deep · 91 km away
  13. 4.6188 km SSE of Atka, Alaska · 172 days ago · 10 km deep · 83 km away
  14. 3.3170 km S of Atka, Alaska · 159 days ago · 10 km deep · 24 km away
  15. 3.0202 km SSE of Atka, Alaska · 153 days ago · 10 km deep · 57 km away
  16. 3.352 km S of Atka, Alaska · 151 days ago · 26 km deep · 97 km away
  17. 3.0204 km SSE of Adak, Alaska · 151 days ago · 10 km deep · 91 km away
  18. 3.172 km S of Atka, Alaska · 150 days ago · 1 km deep · 77 km away
  19. 3.1123 km SSW of Atka, Alaska · 147 days ago · 10 km deep · 83 km away
  20. 3.3201 km SSE of Atka, Alaska · 147 days ago · 10 km deep · 81 km away
  21. 2.765 km SSE of Atka, Alaska · 146 days ago · 35 km deep · 88 km away
  22. 3.2196 km SSE of Atka, Alaska · 146 days ago · 10 km deep · 81 km away
  23. 2.692 km SSE of Atka, Alaska · 145 days ago · 8 km deep · 75 km away

Before

  1. 2.7174 km SSE of Adak, Alaska · 205 days ago · 10 km deep · 95 km away
  2. 3.289 km SE of Atka, Alaska · 207 days ago · 35 km deep · 92 km away
  3. 2.790 km S of Atka, Alaska · 210 days ago · 10 km deep · 64 km away
  4. 2.666 km SSW of Atka, Alaska · 210 days ago · 10 km deep · 90 km away
  5. 3.2169 km SSE of Atka, Alaska · 210 days ago · 20 km deep · 75 km away
  6. 3.095 km S of Atka, Alaska · 213 days ago · 8 km deep · 64 km away
  7. 5.089 km SSW of Atka, Alaska · 217 days ago · 34 km deep · 94 km away
  8. 3.1170 km SSE of Atka, Alaska · 224 days ago · 20 km deep · 37 km away
  9. 3.891 km SSE of Atka, Alaska · 227 days ago · 35 km deep · 70 km away
  10. 3.8104 km SE of Atka, Alaska · 230 days ago · 35 km deep · 93 km away
  11. 3.7148 km SE of Atka, Alaska · 233 days ago · 10 km deep · 80 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event aka2026expnum. Read Thu, Oct 1, 2026, 8:13 PM UTC.