Alaska earthquakes

M3.4 earthquake 163 km SE of Adak, Alaska

A magnitude 3.4 earthquake struck 163 km SE of Adak, Alaska on Fri, Dec 23, 2022, 9:08 AM HAST (19:08 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M3.8 73 km ESE of Adak, Alaska. This one was a foreshock.

More in Alaska

Map

Where this earthquake was located, with the others nearby. Select one for its page.

Open the live map with earthquakes

The earthquake

Magnitude
3.4 (ML, local (Richter)), minor
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2022-12-23 19:08:44 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
50.677° N, 175.277° W
Region
Alaska
Tsunami flag
No
Status
Reviewed by a seismologist

Magnitude estimates

Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.

Mag.ScaleComputed byNotes
3.4ML, local (Richter)USGS National Earthquake Information CenterPreferred · Reviewed · ±0.105 · 12 stations
2.9ML, local (Richter)Alaska Earthquake CenterPreliminary

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 3.5 km horizontally, 2.0 km in depth
Magnitude uncertainty
±0.10
Depth from
Operator assigned
Station coverage gap
259°, poorly surrounded by stations
Stations used
17

Nearby

Within 100 km, magnitude 1.5 and up: 33 in the 60 days after this one and 30 in the 30 days before it.

After

  1. 2.3108 km SSE of Adak, Alaska · 1376 days ago · 7 km deep · 55 km away
  2. 2.9211 km SSW of Atka, Alaska · 1373 days ago · 10 km deep · 51 km away
  3. 2.9182 km S of Atka, Alaska · 1373 days ago · 10 km deep · 53 km away
  4. 3.763 km SE of Adak, Alaska · 1371 days ago · 35 km deep · 100 km away
  5. 2.6Andreanof Islands, Aleutian Islands, Alaska · 1369 days ago · 10 km deep · 86 km away
  6. 3.091 km SSE of Adak, Alaska · 1369 days ago · 10 km deep · 81 km away
  7. 2.192 km SSE of Adak, Alaska · 1369 days ago · 13 km deep · 83 km away
  8. 3.087 km SSE of Adak, Alaska · 1369 days ago · 10 km deep · 88 km away
  9. 2.8Andreanof Islands, Aleutian Islands, Alaska · 1368 days ago · 10 km deep · 2 km away
  10. 1.982 km SE of Adak, Alaska · 1367 days ago · 22 km deep · 89 km away
  11. 2.5167 km SSW of Atka, Alaska · 1367 days ago · 10 km deep · 31 km away
  12. 2.9Andreanof Islands, Aleutian Islands, Alaska · 1367 days ago · 10 km deep · 20 km away
  13. 3.5186 km SSW of Atka, Alaska · 1364 days ago · 10 km deep · 33 km away
  14. 3.7Andreanof Islands, Aleutian Islands, Alaska · 1363 days ago · 21 km deep · 89 km away
  15. 1.964 km SE of Adak, Alaska · 1361 days ago · 19 km deep · 99 km away
  16. 2.7195 km S of Atka, Alaska · 1360 days ago · 10 km deep · 80 km away
  17. 2.984 km ESE of Adak, Alaska · 1360 days ago · 35 km deep · 90 km away
  18. 2.867 km SSE of Adak, Alaska · 1360 days ago · 35 km deep · 98 km away
  19. 2.8103 km ESE of Adak, Alaska · 1357 days ago · 35 km deep · 91 km away
  20. 3.796 km ESE of Adak, Alaska · 1349 days ago · 38 km deep · 98 km away
  21. 2.9112 km SSE of Adak, Alaska · 1349 days ago · 10 km deep · 66 km away
  22. 3.278 km SE of Adak, Alaska · 1347 days ago · 35 km deep · 93 km away
  23. 2.7134 km S of Atka, Alaska · 1343 days ago · 10 km deep · 89 km away
  24. 3.066 km SE of Adak, Alaska · 1343 days ago · 35 km deep · 97 km away
  25. 3.873 km ESE of Adak, Alaska · 1343 days ago · 46 km deep · 99 km away
  26. 3.0153 km S of Atka, Alaska · 1342 days ago · 10 km deep · 85 km away
  27. 2.9Andreanof Islands, Aleutian Islands, Alaska · 1337 days ago · 10 km deep · 97 km away
  28. 2.089 km SW of Atka, Alaska · 1335 days ago · 26 km deep · 99 km away
  29. 2.889 km ESE of Adak, Alaska · 1332 days ago · 35 km deep · 90 km away
  30. 2.2156 km SE of Adak, Alaska · 1332 days ago · 24 km deep · 16 km away
  31. 1.779 km ESE of Adak, Alaska · 1331 days ago · 22 km deep · 97 km away
  32. 2.7Andreanof Islands, Aleutian Islands, Alaska · 1330 days ago · 10 km deep · 54 km away
  33. 2.7Andreanof Islands, Aleutian Islands, Alaska · 1318 days ago · 35 km deep · 83 km away

Before

  1. 1.984 km SE of Adak, Alaska · 1379 days ago · 17 km deep · 86 km away
  2. 2.6Andreanof Islands, Aleutian Islands, Alaska · 1382 days ago · 35 km deep · 37 km away
  3. 2.088 km ESE of Adak, Alaska · 1382 days ago · 24 km deep · 96 km away
  4. 1.971 km SSE of Adak, Alaska · 1382 days ago · 20 km deep · 95 km away
  5. 2.996 km SE of Adak, Alaska · 1384 days ago · 10 km deep · 72 km away
  6. 2.082 km ESE of Adak, Alaska · 1384 days ago · 24 km deep · 97 km away
  7. 3.3100 km S of Atka, Alaska · 1386 days ago · 12 km deep · 93 km away
  8. 2.8201 km SSW of Atka, Alaska · 1387 days ago · 10 km deep · 44 km away
  9. 2.4142 km S of Adak, Alaska · 1388 days ago · 1 km deep · 75 km away
  10. 2.4Andreanof Islands, Aleutian Islands, Alaska · 1390 days ago · 86 km deep · 96 km away
  11. 2.892 km SE of Adak, Alaska · 1390 days ago · 10 km deep · 72 km away
  12. 2.499 km S of Atka, Alaska · 1391 days ago · 19 km deep · 98 km away
  13. 2.4Andreanof Islands, Aleutian Islands, Alaska · 1392 days ago · 22 km deep · 96 km away
  14. 1.9109 km SSW of Atka, Alaska · 1392 days ago · 16 km deep · 79 km away
  15. 3.1103 km SW of Atka, Alaska · 1393 days ago · 35 km deep · 94 km away
  16. 2.7191 km SSW of Atka, Alaska · 1394 days ago · 37 km deep · 32 km away
  17. 2.7193 km SSE of Adak, Alaska · 1394 days ago · 10 km deep · 56 km away
  18. 2.789 km SE of Adak, Alaska · 1397 days ago · 35 km deep · 83 km away
  19. 1.671 km SSE of Adak, Alaska · 1399 days ago · 21 km deep · 95 km away
  20. 2.982 km SSE of Adak, Alaska · 1399 days ago · 35 km deep · 86 km away

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000j3sx (also filed as ak022geq7ycc). Read Thu, Oct 1, 2026, 8:14 AM UTC.