Alaska earthquakes

M3.1 earthquake 77 km SE of Atka, Alaska

A magnitude 3.1 earthquake struck 77 km SE of Atka, Alaska on Thu, Dec 22, 2022, 11:06 PM HAST (09:06 UTC), 35 km (22 mi) below the surface.

A larger quake followed: M4.0 Andreanof Islands, Aleutian Islands, Alaska. This one was a foreshock.

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Map

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

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The earthquake

Magnitude
3.1 (ML, local (Richter)), minor
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2022-12-23 09:06:33 UTC
Depth
35.0 km (21.7 mi), shallow
Epicenter
51.746° N, 173.345° 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
3.1ML, local (Richter)USGS National Earthquake Information CenterPreferred · Reviewed · ±0.148 · 6 stations
2.5ML, 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 8.2 km horizontally, 2.0 km in depth
Magnitude uncertainty
±0.15
Depth from
Operator assigned
Station coverage gap
314°, poorly surrounded by stations
Stations used
9

Nearby

Within 100 km, magnitude 1.5 and up: 35 in the 60 days after this one and 26 in the 30 days before it.

After

  1. 3.251 km S of Atka, Alaska · 1377 days ago · 35 km deep · 53 km away
  2. 2.5134 km SSE of Atka, Alaska · 1377 days ago · 10 km deep · 87 km away
  3. 2.965 km NE of Atka, Alaska · 1377 days ago · 92 km deep · 88 km away
  4. 3.383 km ESE of Atka, Alaska · 1373 days ago · 35 km deep · 12 km away
  5. 3.593 km SE of Atka, Alaska · 1373 days ago · 54 km deep · 17 km away
  6. 3.662 km E of Atka, Alaska · 1372 days ago · 90 km deep · 61 km away
  7. 2.971 km SSW of Atka, Alaska · 1370 days ago · 35 km deep · 97 km away
  8. 2.974 km SSW of Atka, Alaska · 1367 days ago · 35 km deep · 90 km away
  9. 3.115 km NW of Atka, Alaska · 1365 days ago · 141 km deep · 93 km away
  10. 3.378 km ESE of Atka, Alaska · 1364 days ago · 66 km deep · 29 km away
  11. 3.130 km S of Atka, Alaska · 1357 days ago · 84 km deep · 67 km away
  12. 3.0102 km ESE of Atka, Alaska · 1357 days ago · 27 km deep · 41 km away
  13. 3.378 km SSW of Atka, Alaska · 1356 days ago · 35 km deep · 93 km away
  14. 2.879 km SSW of Atka, Alaska · 1356 days ago · 35 km deep · 94 km away
  15. 2.972 km SSW of Atka, Alaska · 1355 days ago · 20 km deep · 95 km away
  16. 2.9109 km S of Atka, Alaska · 1355 days ago · 10 km deep · 75 km away
  17. 3.851 km E of Atka, Alaska · 1354 days ago · 89 km deep · 58 km away
  18. 3.433 km S of Atka, Alaska · 1350 days ago · 10 km deep · 65 km away
  19. 3.211 km NW of Atka, Alaska · 1346 days ago · 143 km deep · 88 km away
  20. 2.7134 km S of Atka, Alaska · 1343 days ago · 10 km deep · 99 km away
  21. 2.017 km S of Atka, Alaska · 1342 days ago · 24 km deep · 65 km away
  22. 2.456 km SSE of Atka, Alaska · 1341 days ago · 22 km deep · 42 km away
  23. 2.9113 km SSE of Atka, Alaska · 1340 days ago · 10 km deep · 61 km away
  24. 3.141 km NE of Atka, Alaska · 1340 days ago · 127 km deep · 87 km away
  25. 3.265 km E of Atka, Alaska · 1333 days ago · 105 km deep · 53 km away
  26. 4.0Andreanof Islands, Aleutian Islands, Alaska · 1332 days ago · 187 km deep · 95 km away
  27. 1.829 km E of Atka, Alaska · 1332 days ago · 23 km deep · 60 km away
  28. 2.3123 km SSE of Atka, Alaska · 1332 days ago · 20 km deep · 71 km away
  29. 2.314 km SW of Atka, Alaska · 1331 days ago · 121 km deep · 82 km away
  30. 3.322 km NW of Atka, Alaska · 1330 days ago · 194 km deep · 100 km away
  31. 1.918 km S of Atka, Alaska · 1327 days ago · 24 km deep · 65 km away
  32. 4.023 km NE of Atka, Alaska · 1322 days ago · 164 km deep · 81 km away
  33. 2.56 km N of Atka, Alaska · 1321 days ago · 170 km deep · 82 km away
  34. 3.249 km ENE of Atka, Alaska · 1320 days ago · 182 km deep · 77 km away
  35. 3.045 km S of Atka, Alaska · 1320 days ago · 35 km deep · 57 km away

Before

  1. 3.170 km SE of Atka, Alaska · 1378 days ago · 35 km deep · 12 km away
  2. 2.231 km SSW of Atka, Alaska · 1380 days ago · 33 km deep · 70 km away
  3. 3.2Andreanof Islands, Aleutian Islands, Alaska · 1381 days ago · 10 km deep · 70 km away
  4. 2.652 km SSW of Atka, Alaska · 1381 days ago · 35 km deep · 71 km away
  5. 2.242 km S of Atka, Alaska · 1383 days ago · 40 km deep · 63 km away
  6. 4.227 km N of Atka, Alaska · 1385 days ago · 157 km deep · 99 km away
  7. 2.629 km E of Atka, Alaska · 1385 days ago · 93 km deep · 61 km away
  8. 3.3100 km S of Atka, Alaska · 1386 days ago · 12 km deep · 87 km away
  9. 3.6Andreanof Islands, Aleutian Islands, Alaska · 1389 days ago · 35 km deep · 78 km away
  10. 2.499 km S of Atka, Alaska · 1391 days ago · 19 km deep · 82 km away
  11. 2.8Andreanof Islands, Aleutian Islands, Alaska · 1391 days ago · 83 km deep · 58 km away
  12. 3.413 km SE of Atka, Alaska · 1391 days ago · 72 km deep · 63 km away
  13. 3.362 km ENE of Atka, Alaska · 1391 days ago · 203 km deep · 77 km away
  14. 3.3121 km SE of Atka, Alaska · 1391 days ago · 35 km deep · 45 km away
  15. 2.4Andreanof Islands, Aleutian Islands, Alaska · 1392 days ago · 22 km deep · 84 km away
  16. 2.899 km ESE of Atka, Alaska · 1394 days ago · 40 km deep · 36 km away
  17. 2.4126 km S of Atka, Alaska · 1401 days ago · 4 km deep · 96 km away
  18. 3.077 km ENE of Atka, Alaska · 1401 days ago · 184 km deep · 76 km away
  19. 2.270 km S of Atka, Alaska · 1402 days ago · 38 km deep · 65 km away
  20. 2.020 km S of Atka, Alaska · 1403 days ago · 62 km deep · 62 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000j3b2 (also filed as ak022gek95qb). Read Thu, Oct 1, 2026, 9:22 AM UTC.