Alaska earthquakes

M3.0 earthquake 17 km SE of Atka, Alaska

A magnitude 3.0 earthquake struck 17 km SE of Atka, Alaska on Sun, Apr 2, 2023, 9:49 AM HADT (18:49 UTC), 155 km (96 mi) below the surface.

A larger quake followed: M4.5 91 km ESE of Adak, 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
3.0 (ML, local (Richter)), minor
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2023-04-02 18:49:28 UTC
Depth
155.1 km (96.4 mi), intermediate-depth
Epicenter
52.063° N, 174.053° 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
3.0ML, local (Richter)USGS National Earthquake Information CenterPreferred · Reviewed · ±0.105 · 12 stations
2.7ML, 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 43.5 km horizontally, 18.8 km in depth
Magnitude uncertainty
±0.10
Depth from
From location
Station coverage gap
350°, poorly surrounded by stations
Stations used
13

Nearby

Within 100 km, magnitude 1.5 and up: 52 in the 60 days after this one and 24 in the 30 days before it.

After

  1. 2.964 km SSW of Atka, Alaska · 1277 days ago · 35 km deep · 56 km away
  2. 2.629 km S of Atka, Alaska · 1277 days ago · 10 km deep · 21 km away
  3. 2.699 km SW of Atka, Alaska · 1277 days ago · 35 km deep · 97 km away
  4. 3.353 km SSW of Atka, Alaska · 1276 days ago · 35 km deep · 45 km away
  5. 1.959 km SSW of Atka, Alaska · 1275 days ago · 23 km deep · 49 km away
  6. 2.578 km SSE of Atka, Alaska · 1275 days ago · 17 km deep · 61 km away
  7. 1.832 km ESE of Atka, Alaska · 1274 days ago · 16 km deep · 19 km away
  8. 4.591 km ESE of Adak, Alaska · 1272 days ago · 55 km deep · 95 km away · felt by 2
  9. 1.621 km N of Atka, Alaska · 1272 days ago · 5 km deep · 36 km away
  10. 2.621 km N of Atka, Alaska · 1272 days ago · 1 km deep · 36 km away
  11. 2.221 km N of Atka, Alaska · 1272 days ago · -3 km deep · 37 km away
  12. 2.195 km SW of Atka, Alaska · 1271 days ago · 25 km deep · 92 km away
  13. 1.999 km SW of Atka, Alaska · 1270 days ago · 26 km deep · 98 km away
  14. 3.1Andreanof Islands, Aleutian Islands, Alaska · 1267 days ago · 109 km deep · 97 km away
  15. 2.679 km SW of Atka, Alaska · 1265 days ago · 60 km deep · 80 km away
  16. 2.655 km SE of Atka, Alaska · 1265 days ago · 35 km deep · 38 km away
  17. 2.9Andreanof Islands, Aleutian Islands, Alaska · 1265 days ago · 10 km deep · 32 km away
  18. 3.167 km E of Atka, Alaska · 1264 days ago · 74 km deep · 57 km away
  19. 2.266 km SSE of Atka, Alaska · 1263 days ago · 18 km deep · 49 km away
  20. 3.8Andreanof Islands, Aleutian Islands, Alaska · 1263 days ago · 35 km deep · 98 km away
  21. 3.1111 km ESE of Atka, Alaska · 1259 days ago · 35 km deep · 96 km away
  22. 3.577 km WSW of Atka, Alaska · 1258 days ago · 74 km deep · 82 km away
  23. 2.154 km SSE of Atka, Alaska · 1257 days ago · 5 km deep · 38 km away
  24. 2.047 km SW of Atka, Alaska · 1256 days ago · 64 km deep · 46 km away
  25. 2.764 km SW of Atka, Alaska · 1256 days ago · 70 km deep · 65 km away
  26. 3.1Andreanof Islands, Aleutian Islands, Alaska · 1255 days ago · 35 km deep · 47 km away
  27. 3.829 km E of Atka, Alaska · 1254 days ago · 96 km deep · 25 km away · felt by 1
  28. 3.1103 km ESE of Atka, Alaska · 1254 days ago · 10 km deep · 88 km away
  29. 3.229 km NNW of Atka, Alaska · 1253 days ago · 173 km deep · 48 km away
  30. 3.0Andreanof Islands, Aleutian Islands, Alaska · 1253 days ago · 178 km deep · 10 km away
  31. 2.0Andreanof Islands, Aleutian Islands, Alaska · 1252 days ago · 41 km deep · 87 km away
  32. 1.978 km SW of Atka, Alaska · 1252 days ago · 36 km deep · 81 km away
  33. 1.969 km WSW of Atka, Alaska · 1252 days ago · 78 km deep · 74 km away
  34. 2.7102 km ESE of Atka, Alaska · 1251 days ago · 35 km deep · 87 km away
  35. 3.236 km NW of Atka, Alaska · 1243 days ago · 192 km deep · 54 km away
  36. 2.191 km SW of Atka, Alaska · 1242 days ago · 26 km deep · 91 km away
  37. 3.797 km SE of Atka, Alaska · 1241 days ago · 18 km deep · 80 km away
  38. 2.053 km WSW of Atka, Alaska · 1238 days ago · 84 km deep · 62 km away
  39. 2.0Andreanof Islands, Aleutian Islands, Alaska · 1237 days ago · 73 km deep · 19 km away
  40. 2.959 km SSW of Atka, Alaska · 1232 days ago · 35 km deep · 52 km away
  41. 1.845 km W of Atka, Alaska · 1229 days ago · 13 km deep · 58 km away
  42. 1.771 km WSW of Atka, Alaska · 1229 days ago · 46 km deep · 74 km away
  43. 2.5112 km SE of Atka, Alaska · 1228 days ago · 35 km deep · 95 km away
  44. 2.540 km E of Atka, Alaska · 1227 days ago · 35 km deep · 32 km away
  45. 3.925 km ENE of Atka, Alaska · 1226 days ago · 121 km deep · 25 km away
  46. 2.654 km SSW of Atka, Alaska · 1225 days ago · 10 km deep · 51 km away
  47. 3.894 km E of Atka, Alaska · 1224 days ago · 209 km deep · 89 km away
  48. 1.617 km NNE of Atka, Alaska · 1224 days ago · 7 km deep · 29 km away
  49. 3.0108 km E of Atka, Alaska · 1219 days ago · 10 km deep · 97 km away
  50. 2.867 km S of Atka, Alaska · 1219 days ago · 35 km deep · 52 km away
  51. 3.481 km NE of Atka, Alaska · 1219 days ago · 180 km deep · 89 km away
  52. 1.984 km SW of Atka, Alaska · 1218 days ago · 26 km deep · 81 km away

Before

  1. 3.175 km NW of Atka, Alaska · 1278 days ago · 204 km deep · 93 km away
  2. 3.320 km NNW of Atka, Alaska · 1279 days ago · 194 km deep · 37 km away
  3. 1.991 km ESE of Adak, Alaska · 1279 days ago · 47 km deep · 98 km away
  4. 3.249 km SE of Atka, Alaska · 1279 days ago · 150 km deep · 32 km away
  5. 2.728 km SW of Atka, Alaska · 1279 days ago · 100 km deep · 30 km away
  6. 3.043 km WSW of Atka, Alaska · 1281 days ago · 139 km deep · 52 km away
  7. 2.940 km SSW of Atka, Alaska · 1281 days ago · 75 km deep · 37 km away
  8. 2.1Andreanof Islands, Aleutian Islands, Alaska · 1281 days ago · 20 km deep · 80 km away
  9. 3.452 km SSW of Atka, Alaska · 1281 days ago · 33 km deep · 42 km away
  10. 3.139 km NNW of Atka, Alaska · 1283 days ago · 160 km deep · 57 km away
  11. 2.683 km SW of Atka, Alaska · 1285 days ago · 10 km deep · 80 km away
  12. 2.3Andreanof Islands, Aleutian Islands, Alaska · 1288 days ago · 11 km deep · 58 km away
  13. 2.917 km NE of Atka, Alaska · 1292 days ago · 152 km deep · 28 km away
  14. 2.9112 km SE of Atka, Alaska · 1292 days ago · 35 km deep · 94 km away
  15. 2.660 km SE of Atka, Alaska · 1294 days ago · 35 km deep · 42 km away
  16. 1.717 km SW of Atka, Alaska · 1297 days ago · 7 km deep · 23 km away
  17. 3.5Andreanof Islands, Aleutian Islands, Alaska · 1297 days ago · 35 km deep · 93 km away
  18. 2.74 km SSE of Atka, Alaska · 1300 days ago · 115 km deep · 14 km away
  19. 3.189 km SW of Atka, Alaska · 1300 days ago · 35 km deep · 90 km away
  20. 3.364 km SSE of Atka, Alaska · 1303 days ago · 29 km deep · 46 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000k2l1 (also filed as ak02348ggani). Read Thu, Oct 1, 2026, 3:46 AM UTC.