Alaska earthquakes

M2.9 earthquake 149 km SSE of Atka, Alaska

A magnitude 2.9 earthquake struck 149 km SSE of Atka, Alaska on Sun, Apr 9, 2023, 10:31 PM HADT (07:31 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M4.6 164 km S 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
2.9 (ml), micro
Local time
UTC
2023-04-10 07:31:44 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
50.879° N, 173.766° 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 7.7 km horizontally, 2.0 km in depth
Magnitude uncertainty
±0.13
Depth from
Operator assigned
Station coverage gap
297°, poorly surrounded by stations
Stations used
14

Nearby

Within 100 km, magnitude 1.5 and up: 22 in the 60 days after this one and 12 in the 30 days before it.

After

  1. 3.2Andreanof Islands, Aleutian Islands, Alaska · 1266 days ago · 4 km deep · 50 km away
  2. 2.266 km SSE of Atka, Alaska · 1263 days ago · 18 km deep · 85 km away
  3. 3.0119 km SSW of Atka, Alaska · 1262 days ago · 31 km deep · 93 km away
  4. 4.6164 km S of Atka, Alaska · 1257 days ago · 10 km deep · 55 km away
  5. 2.154 km SSE of Atka, Alaska · 1257 days ago · 5 km deep · 96 km away
  6. 3.1Andreanof Islands, Aleutian Islands, Alaska · 1254 days ago · 35 km deep · 91 km away
  7. 3.1162 km S of Atka, Alaska · 1254 days ago · 10 km deep · 16 km away
  8. 2.6152 km SE of Adak, Alaska · 1253 days ago · 10 km deep · 98 km away
  9. 3.797 km SE of Atka, Alaska · 1241 days ago · 18 km deep · 74 km away
  10. 3.0Andreanof Islands, Aleutian Islands, Alaska · 1231 days ago · 10 km deep · 39 km away
  11. 2.5112 km SE of Atka, Alaska · 1228 days ago · 35 km deep · 91 km away
  12. 2.5189 km SSE of Atka, Alaska · 1227 days ago · 10 km deep · 53 km away
  13. 2.3Andreanof Islands, Aleutian Islands, Alaska · 1226 days ago · 11 km deep · 39 km away
  14. 2.4214 km SE of Adak, Alaska · 1226 days ago · 4 km deep · 100 km away
  15. 3.2163 km SSE of Atka, Alaska · 1225 days ago · 10 km deep · 14 km away
  16. 3.0172 km S of Atka, Alaska · 1219 days ago · 10 km deep · 28 km away
  17. 2.867 km S of Atka, Alaska · 1218 days ago · 35 km deep · 82 km away
  18. 3.693 km SE of Atka, Alaska · 1216 days ago · 35 km deep · 75 km away
  19. 3.1153 km S of Atka, Alaska · 1216 days ago · 10 km deep · 5 km away
  20. 2.6124 km SSW of Atka, Alaska · 1212 days ago · 35 km deep · 95 km away
  21. 2.3168 km S of Atka, Alaska · 1210 days ago · 9 km deep · 23 km away
  22. 2.792 km SSW of Atka, Alaska · 1210 days ago · 10 km deep · 75 km away

Before

  1. 3.0Andreanof Islands, Aleutian Islands, Alaska · 1274 days ago · 10 km deep · 80 km away
  2. 2.578 km SSE of Atka, Alaska · 1275 days ago · 17 km deep · 79 km away
  3. 1.959 km SSW of Atka, Alaska · 1275 days ago · 23 km deep · 98 km away
  4. 2.1Andreanof Islands, Aleutian Islands, Alaska · 1281 days ago · 20 km deep · 66 km away
  5. 2.3Andreanof Islands, Aleutian Islands, Alaska · 1288 days ago · 11 km deep · 91 km away
  6. 3.4Andreanof Islands, Aleutian Islands, Alaska · 1290 days ago · 10 km deep · 84 km away
  7. 2.9112 km SE of Atka, Alaska · 1292 days ago · 35 km deep · 66 km away
  8. 2.6128 km S of Atka, Alaska · 1292 days ago · 10 km deep · 30 km away
  9. 2.8121 km SSE of Atka, Alaska · 1293 days ago · 10 km deep · 34 km away
  10. 2.660 km SE of Atka, Alaska · 1294 days ago · 35 km deep · 97 km away
  11. 2.7172 km S of Atka, Alaska · 1294 days ago · 10 km deep · 24 km away
  12. 3.5158 km S of Atka, Alaska · 1294 days ago · 10 km deep · 23 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000k4id (also filed as ak0234li3hdt). Read Wed, Sep 30, 2026, 9:05 PM UTC.