Alaska earthquakes

M3.2 earthquake 49 km ENE of Atka, Alaska

A magnitude 3.2 earthquake struck 49 km ENE of Atka, Alaska on Sat, Feb 18, 2023, 6:32 PM HAST (04:32 UTC), 182 km (113 mi) below the surface.

A larger quake followed: M4.2 70 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
3.2 (ML, local (Richter)), minor
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2023-02-19 04:32:19 UTC
Depth
181.8 km (113.0 mi), intermediate-depth
Epicenter
52.424° N, 173.574° 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
3.2ML, local (Richter)USGS National Earthquake Information CenterPreferred · Reviewed · ±0.085 · 18 stations
3.0ML, 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 6.9 km horizontally, 6.2 km in depth
Magnitude uncertainty
±0.09
Depth from
From location
Station coverage gap
167°
Stations used
23

Nearby

Within 100 km, magnitude 1.5 and up: 35 in the 60 days after this one and 14 in the 30 days before it.

After

  1. 3.045 km S of Atka, Alaska · 1321 days ago · 35 km deep · 82 km away
  2. 3.928 km WNW of Atka, Alaska · 1320 days ago · 215 km deep · 67 km away
  3. 4.0Andreanof Islands, Aleutian Islands, Alaska · 1318 days ago · 44 km deep · 84 km away
  4. 2.7Andreanof Islands, Aleutian Islands, Alaska · 1317 days ago · 20 km deep · 81 km away
  5. 3.030 km S of Atka, Alaska · 1316 days ago · 150 km deep · 68 km away
  6. 3.843 km SE of Atka, Alaska · 1314 days ago · 35 km deep · 63 km away
  7. 4.0108 km E of Atka, Alaska · 1314 days ago · 10 km deep · 70 km away
  8. 3.048 km S of Atka, Alaska · 1313 days ago · 35 km deep · 89 km away
  9. 4.270 km SSE of Atka, Alaska · 1308 days ago · 57 km deep · 91 km away
  10. 2.953 km SSE of Atka, Alaska · 1307 days ago · 35 km deep · 80 km away
  11. 3.364 km SSE of Atka, Alaska · 1304 days ago · 29 km deep · 80 km away
  12. 2.74 km SSE of Atka, Alaska · 1301 days ago · 115 km deep · 51 km away
  13. 1.717 km SW of Atka, Alaska · 1298 days ago · 7 km deep · 66 km away
  14. 2.660 km SE of Atka, Alaska · 1295 days ago · 35 km deep · 75 km away
  15. 2.917 km NE of Atka, Alaska · 1293 days ago · 152 km deep · 33 km away
  16. 3.139 km NNW of Atka, Alaska · 1284 days ago · 160 km deep · 63 km away
  17. 3.452 km SSW of Atka, Alaska · 1282 days ago · 33 km deep · 93 km away
  18. 2.940 km SSW of Atka, Alaska · 1282 days ago · 75 km deep · 87 km away
  19. 3.043 km WSW of Atka, Alaska · 1282 days ago · 139 km deep · 92 km away
  20. 2.728 km SW of Atka, Alaska · 1280 days ago · 100 km deep · 77 km away
  21. 3.249 km SE of Atka, Alaska · 1280 days ago · 150 km deep · 67 km away
  22. 3.320 km NNW of Atka, Alaska · 1280 days ago · 194 km deep · 47 km away
  23. 3.175 km NW of Atka, Alaska · 1279 days ago · 204 km deep · 96 km away
  24. 3.017 km SE of Atka, Alaska · 1278 days ago · 155 km deep · 52 km away
  25. 2.629 km S of Atka, Alaska · 1278 days ago · 10 km deep · 72 km away
  26. 3.353 km SSW of Atka, Alaska · 1277 days ago · 35 km deep · 96 km away
  27. 2.578 km SSE of Atka, Alaska · 1276 days ago · 17 km deep · 93 km away
  28. 1.832 km ESE of Atka, Alaska · 1276 days ago · 16 km deep · 42 km away
  29. 1.621 km N of Atka, Alaska · 1273 days ago · 5 km deep · 40 km away
  30. 2.621 km N of Atka, Alaska · 1273 days ago · 1 km deep · 40 km away
  31. 2.221 km N of Atka, Alaska · 1273 days ago · -3 km deep · 40 km away
  32. 2.655 km SE of Atka, Alaska · 1266 days ago · 35 km deep · 66 km away
  33. 2.9Andreanof Islands, Aleutian Islands, Alaska · 1266 days ago · 10 km deep · 64 km away
  34. 3.167 km E of Atka, Alaska · 1265 days ago · 74 km deep · 42 km away
  35. 2.266 km SSE of Atka, Alaska · 1264 days ago · 18 km deep · 88 km away

Before

  1. 4.365 km NNW of Atka, Alaska · 1322 days ago · 216 km deep · 72 km away
  2. 2.56 km N of Atka, Alaska · 1322 days ago · 170 km deep · 47 km away
  3. 4.023 km NE of Atka, Alaska · 1323 days ago · 164 km deep · 28 km away
  4. 1.918 km S of Atka, Alaska · 1328 days ago · 24 km deep · 59 km away
  5. 3.322 km NW of Atka, Alaska · 1331 days ago · 194 km deep · 57 km away
  6. 2.314 km SW of Atka, Alaska · 1332 days ago · 121 km deep · 64 km away
  7. 1.829 km E of Atka, Alaska · 1332 days ago · 23 km deep · 27 km away
  8. 4.0Andreanof Islands, Aleutian Islands, Alaska · 1333 days ago · 187 km deep · 20 km away
  9. 3.265 km E of Atka, Alaska · 1333 days ago · 105 km deep · 32 km away
  10. 3.141 km NE of Atka, Alaska · 1341 days ago · 127 km deep · 17 km away
  11. 2.456 km SSE of Atka, Alaska · 1342 days ago · 22 km deep · 83 km away
  12. 2.017 km S of Atka, Alaska · 1343 days ago · 24 km deep · 58 km away
  13. 3.211 km NW of Atka, Alaska · 1346 days ago · 143 km deep · 54 km away
  14. 3.433 km S of Atka, Alaska · 1350 days ago · 10 km deep · 75 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000jgdc (also filed as ak0232arfzls). Read Fri, Oct 2, 2026, 4:03 AM UTC.