Alaska earthquakes

M2.6 earthquake 288 km WSW of Adak, Alaska

A magnitude 2.6 earthquake struck 288 km WSW of Adak, Alaska on Thu, Feb 9, 2023, 12:31 PM GMT+12 (00:31 UTC), 24 km (15 mi) below the surface.

A larger quake followed: M5.3 191 km WSW of Adak, 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
2.6 (ML, local (Richter)), micro
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2023-02-09 00:31:55 UTC
Depth
23.6 km (14.7 mi), shallow
Epicenter
51.070° N, 179.414° E
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
2.6ML, local (Richter)USGS National Earthquake Information CenterPreferred · Reviewed · ±0.097 · 14 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 4.3 km horizontally, 8.0 km in depth
Magnitude uncertainty
±0.10
Depth from
From location
Station coverage gap
228°, poorly surrounded by stations
Stations used
18

Nearby

Within 100 km, magnitude 1.5 and up: 59 in the 60 days after this one and 28 in the 30 days before it.

After

  1. 2.8Rat Islands, Aleutian Islands, Alaska · 1330 days ago · 35 km deep · 41 km away
  2. 3.4218 km W of Adak, Alaska · 1330 days ago · 91 km deep · 93 km away
  3. 4.4Rat Islands, Aleutian Islands, Alaska · 1328 days ago · 63 km deep · 74 km away
  4. 2.9200 km WSW of Adak, Alaska · 1328 days ago · 35 km deep · 92 km away
  5. 3.2Rat Islands, Aleutian Islands, Alaska · 1327 days ago · 75 km deep · 81 km away
  6. 5.3191 km WSW of Adak, Alaska · 1324 days ago · 35 km deep · 99 km away · felt by 1 · tsunami flag
  7. 2.4203 km WSW of Adak, Alaska · 1321 days ago · 49 km deep · 88 km away
  8. 2.1200 km WSW of Adak, Alaska · 1320 days ago · 35 km deep · 89 km away
  9. 3.3299 km WSW of Adak, Alaska · 1316 days ago · 38 km deep · 33 km away
  10. 2.6Rat Islands, Aleutian Islands, Alaska · 1315 days ago · 67 km deep · 68 km away
  11. 2.7258 km WSW of Adak, Alaska · 1315 days ago · 29 km deep · 31 km away
  12. 2.9Rat Islands, Aleutian Islands, Alaska · 1313 days ago · 73 km deep · 78 km away
  13. 3.0229 km WSW of Adak, Alaska · 1310 days ago · 72 km deep · 68 km away
  14. 2.6Rat Islands, Aleutian Islands, Alaska · 1308 days ago · 33 km deep · 34 km away
  15. 3.5Rat Islands, Aleutian Islands, Alaska · 1308 days ago · 35 km deep · 58 km away
  16. 2.6278 km WSW of Adak, Alaska · 1308 days ago · 27 km deep · 40 km away
  17. 4.2Rat Islands, Aleutian Islands, Alaska · 1308 days ago · 77 km deep · 76 km away
  18. 2.9293 km W of Adak, Alaska · 1304 days ago · 57 km deep · 59 km away
  19. 3.6295 km W of Adak, Alaska · 1304 days ago · 77 km deep · 51 km away
  20. 3.8199 km WSW of Adak, Alaska · 1304 days ago · 35 km deep · 92 km away
  21. 3.2Rat Islands, Aleutian Islands, Alaska · 1304 days ago · 109 km deep · 97 km away
  22. 2.2Rat Islands, Aleutian Islands, Alaska · 1303 days ago · 94 km deep · 89 km away
  23. 3.8Rat Islands, Aleutian Islands, Alaska · 1301 days ago · 37 km deep · 81 km away
  24. 3.1Rat Islands, Aleutian Islands, Alaska · 1301 days ago · 94 km deep · 95 km away
  25. 2.9Rat Islands, Aleutian Islands, Alaska · 1300 days ago · 35 km deep · 82 km away
  26. 2.9225 km W of Adak, Alaska · 1299 days ago · 99 km deep · 94 km away
  27. 2.5201 km WSW of Adak, Alaska · 1295 days ago · 59 km deep · 87 km away
  28. 2.7261 km W of Adak, Alaska · 1294 days ago · 64 km deep · 56 km away
  29. 3.2244 km WSW of Adak, Alaska · 1292 days ago · 35 km deep · 48 km away
  30. 2.7225 km WSW of Adak, Alaska · 1288 days ago · 13 km deep · 64 km away
  31. 2.9220 km WSW of Adak, Alaska · 1288 days ago · 35 km deep · 68 km away
  32. 2.7234 km W of Adak, Alaska · 1287 days ago · 18 km deep · 81 km away
  33. 2.8207 km W of Adak, Alaska · 1287 days ago · 85 km deep · 95 km away
  34. 2.3190 km WSW of Adak, Alaska · 1286 days ago · 24 km deep · 98 km away
  35. 2.5222 km WSW of Adak, Alaska · 1284 days ago · 10 km deep · 71 km away
  36. 2.0222 km WSW of Adak, Alaska · 1284 days ago · 10 km deep · 73 km away
  37. 2.1233 km W of Adak, Alaska · 1284 days ago · 9 km deep · 85 km away
  38. 2.6229 km W of Adak, Alaska · 1281 days ago · 96 km deep · 85 km away
  39. 2.3Rat Islands, Aleutian Islands, Alaska · 1281 days ago · 58 km deep · 83 km away
  40. 1.8248 km WSW of Adak, Alaska · 1281 days ago · 58 km deep · 50 km away
  41. 3.1289 km WSW of Adak, Alaska · 1279 days ago · 27 km deep · 15 km away
  42. 3.3Rat Islands, Aleutian Islands, Alaska · 1279 days ago · 91 km deep · 96 km away
  43. 4.0Rat Islands, Aleutian Islands, Alaska · 1278 days ago · 57 km deep · 37 km away
  44. 3.6Andreanof Islands, Aleutian Islands, Alaska · 1277 days ago · 17 km deep · 70 km away
  45. 2.1Rat Islands, Aleutian Islands, Alaska · 1276 days ago · 26 km deep · 88 km away
  46. 3.1Rat Islands, Aleutian Islands, Alaska · 1276 days ago · 69 km deep · 96 km away
  47. 2.1193 km WSW of Adak, Alaska · 1276 days ago · 24 km deep · 97 km away
  48. 2.8Rat Islands, Aleutian Islands, Alaska · 1276 days ago · 71 km deep · 81 km away
  49. 3.6271 km W of Adak, Alaska · 1276 days ago · 66 km deep · 50 km away
  50. 3.9Andreanof Islands, Aleutian Islands, Alaska · 1275 days ago · 10 km deep · 84 km away
  51. 1.9258 km W of Adak, Alaska · 1275 days ago · 61 km deep · 56 km away
  52. 2.0246 km W of Adak, Alaska · 1275 days ago · 75 km deep · 67 km away
  53. 3.2233 km W of Adak, Alaska · 1275 days ago · 98 km deep · 84 km away
  54. 1.9207 km WSW of Adak, Alaska · 1274 days ago · 22 km deep · 81 km away
  55. 3.0Rat Islands, Aleutian Islands, Alaska · 1274 days ago · 21 km deep · 59 km away
  56. 3.0Rat Islands, Aleutian Islands, Alaska · 1272 days ago · 10 km deep · 97 km away
  57. 2.5Rat Islands, Aleutian Islands, Alaska · 1272 days ago · 72 km deep · 71 km away
  58. 2.9Rat Islands, Aleutian Islands, Alaska · 1272 days ago · 41 km deep · 58 km away
  59. 2.8296 km WSW of Adak, Alaska · 1271 days ago · 39 km deep · 19 km away

Before

  1. 2.5200 km WSW of Adak, Alaska · 1331 days ago · 71 km deep · 92 km away
  2. 2.0261 km W of Adak, Alaska · 1332 days ago · 3 km deep · 97 km away
  3. 2.2239 km WSW of Adak, Alaska · 1332 days ago · 13 km deep · 50 km away
  4. 2.0190 km WSW of Adak, Alaska · 1332 days ago · 13 km deep · 98 km away
  5. 3.2299 km WSW of Adak, Alaska · 1334 days ago · 20 km deep · 11 km away
  6. 2.8Rat Islands, Aleutian Islands, Alaska · 1336 days ago · 38 km deep · 38 km away
  7. 3.1274 km WSW of Adak, Alaska · 1337 days ago · 65 km deep · 41 km away
  8. 3.3233 km WSW of Adak, Alaska · 1337 days ago · 21 km deep · 55 km away
  9. 2.8Rat Islands, Aleutian Islands, Alaska · 1337 days ago · 77 km deep · 82 km away
  10. 2.6190 km WSW of Adak, Alaska · 1338 days ago · 29 km deep · 98 km away
  11. 3.0Rat Islands, Aleutian Islands, Alaska · 1338 days ago · 10 km deep · 95 km away
  12. 2.1249 km WSW of Adak, Alaska · 1338 days ago · 5 km deep · 53 km away
  13. 3.4Rat Islands, Aleutian Islands, Alaska · 1339 days ago · 76 km deep · 83 km away
  14. 2.1253 km WSW of Adak, Alaska · 1340 days ago · 13 km deep · 41 km away
  15. 2.8234 km W of Adak, Alaska · 1343 days ago · 10 km deep · 82 km away
  16. 3.1216 km WSW of Adak, Alaska · 1349 days ago · 35 km deep · 77 km away
  17. 4.0208 km WSW of Adak, Alaska · 1349 days ago · 10 km deep · 96 km away
  18. 2.6214 km WSW of Adak, Alaska · 1351 days ago · 46 km deep · 74 km away
  19. 2.1242 km WSW of Adak, Alaska · 1351 days ago · 9 km deep · 50 km away
  20. 2.0206 km WSW of Adak, Alaska · 1352 days ago · 21 km deep · 82 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000jqam (also filed as ak0231u5on9j). Read Thu, Oct 1, 2026, 4:32 PM UTC.