Alaska earthquakes

M1.5 earthquake 31 km WSW of False Pass, Alaska

A magnitude 1.5 earthquake struck 31 km WSW of False Pass, Alaska on Sat, Feb 25, 2023, 4:08 AM AKST (13:08 UTC), 35 km (22 mi) below the surface.

A larger quake followed: M4.3 115 km SSW of False Pass, 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
1.5 (ml), micro
Local time
UTC
2023-02-25 13:08:55 UTC
Depth
35.0 km (21.7 mi), shallow
Epicenter
54.716° N, 163.837° W
Region
Alaska
Tsunami flag
No
Status
Reviewed by a seismologist

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 2.6 km horizontally, 2.1 km in depth
Magnitude uncertainty
±0.30
Depth from
From location
Station coverage gap
185°, poorly surrounded by stations
Stations used
6

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 91 in the 60 days after this one and 36 in the 30 days before it.

After

  1. 2.616 km SW of Cold Bay, Alaska · 1309 days ago · 117 km deep · 72 km away
  2. 2.3Unimak Island region, Alaska · 1309 days ago · 26 km deep · 89 km away
  3. 2.8Unimak Island region, Alaska · 1308 days ago · 35 km deep · 77 km away
  4. 2.285 km S of False Pass, Alaska · 1307 days ago · 26 km deep · 70 km away
  5. 1.928 km SSE of False Pass, Alaska · 1307 days ago · 14 km deep · 35 km away
  6. 2.150 km SE of False Pass, Alaska · 1307 days ago · 62 km deep · 66 km away
  7. 2.635 km SSE of False Pass, Alaska · 1307 days ago · 19 km deep · 41 km away
  8. 2.478 km SSW of False Pass, Alaska · 1306 days ago · 63 km deep · 59 km away
  9. 1.962 km SW of False Pass, Alaska · 1306 days ago · 11 km deep · 31 km away
  10. 2.642 km SSW of False Pass, Alaska · 1305 days ago · 100 km deep · 21 km away
  11. 2.744 km S of King Cove, Alaska · 1305 days ago · 56 km deep · 92 km away
  12. 2.379 km ESE of Akutan, Alaska · 1304 days ago · 55 km deep · 95 km away
  13. 1.8Unimak Island region, Alaska · 1303 days ago · 13 km deep · 35 km away
  14. 2.173 km S of King Cove, Alaska · 1302 days ago · 7 km deep · 96 km away
  15. 4.3115 km SSW of False Pass, Alaska · 1302 days ago · 44 km deep · 95 km away
  16. 2.4111 km SSW of False Pass, Alaska · 1302 days ago · 26 km deep · 91 km away
  17. 2.289 km S of False Pass, Alaska · 1300 days ago · 26 km deep · 78 km away
  18. 2.0103 km ESE of Akutan, Alaska · 1300 days ago · 51 km deep · 97 km away
  19. 1.724 km SSE of False Pass, Alaska · 1299 days ago · 12 km deep · 34 km away
  20. 1.732 km SSE of False Pass, Alaska · 1299 days ago · 13 km deep · 39 km away
  21. 1.943 km ENE of Akutan, Alaska · 1298 days ago · 86 km deep · 98 km away
  22. 2.678 km SSE of False Pass, Alaska · 1298 days ago · 52 km deep · 81 km away
  23. 2.5100 km E of Akutan, Alaska · 1298 days ago · 32 km deep · 87 km away
  24. 2.9112 km S of False Pass, Alaska · 1298 days ago · 35 km deep · 99 km away
  25. 1.9106 km SSW of False Pass, Alaska · 1296 days ago · 45 km deep · 84 km away
  26. 1.8104 km SSW of False Pass, Alaska · 1296 days ago · 15 km deep · 85 km away
  27. 2.062 km SSE of False Pass, Alaska · 1294 days ago · 13 km deep · 69 km away
  28. 3.4Unimak Island region, Alaska · 1293 days ago · 35 km deep · 99 km away
  29. 1.883 km ENE of Akutan, Alaska · 1292 days ago · 12 km deep · 58 km away
  30. 2.6107 km SSW of False Pass, Alaska · 1289 days ago · 35 km deep · 85 km away
  31. 2.927 km WSW of False Pass, Alaska · 1289 days ago · 105 km deep · 5 km away
  32. 2.0Unimak Island region, Alaska · 1288 days ago · 22 km deep · 84 km away
  33. 2.8Unimak Island region, Alaska · 1288 days ago · 35 km deep · 88 km away
  34. 2.583 km SE of False Pass, Alaska · 1288 days ago · 28 km deep · 95 km away
  35. 2.5108 km S of False Pass, Alaska · 1285 days ago · 35 km deep · 99 km away
  36. 2.059 km SSE of False Pass, Alaska · 1284 days ago · 52 km deep · 69 km away
  37. 2.333 km NNW of False Pass, Alaska · 1283 days ago · 140 km deep · 50 km away
  38. 2.9106 km S of False Pass, Alaska · 1283 days ago · 35 km deep · 89 km away
  39. 2.982 km S of King Cove, Alaska · 1282 days ago · 35 km deep · 98 km away
  40. 2.184 km ENE of Akutan, Alaska · 1282 days ago · 7 km deep · 58 km away
  41. 1.981 km ENE of Akutan, Alaska · 1281 days ago · 13 km deep · 60 km away
  42. 2.362 km E of Akutan, Alaska · 1281 days ago · 103 km deep · 93 km away
  43. 2.428 km SSW of False Pass, Alaska · 1280 days ago · 97 km deep · 20 km away
  44. 2.088 km S of False Pass, Alaska · 1280 days ago · 41 km deep · 74 km away
  45. 2.560 km SSE of False Pass, Alaska · 1279 days ago · 53 km deep · 67 km away
  46. 3.369 km E of Akutan, Alaska · 1278 days ago · 28 km deep · 86 km away
  47. 2.665 km E of Akutan, Alaska · 1278 days ago · 25 km deep · 89 km away
  48. 2.183 km S of False Pass, Alaska · 1278 days ago · 25 km deep · 69 km away
  49. 2.150 km SW of False Pass, Alaska · 1275 days ago · 91 km deep · 19 km away
  50. 1.826 km SSE of False Pass, Alaska · 1274 days ago · 13 km deep · 35 km away
  51. 1.5Alaska Peninsula · 1273 days ago · 59 km deep · 95 km away
  52. 2.6Unimak Island region, Alaska · 1273 days ago · 10 km deep · 84 km away
  53. 1.557 km NE of Akutan, Alaska · 1272 days ago · 4 km deep · 87 km away
  54. 1.882 km ENE of Akutan, Alaska · 1272 days ago · 13 km deep · 59 km away
  55. 2.0112 km S of False Pass, Alaska · 1272 days ago · 15 km deep · 95 km away
  56. 1.888 km E of Akutan, Alaska · 1272 days ago · 26 km deep · 76 km away
  57. 2.093 km S of False Pass, Alaska · 1271 days ago · 26 km deep · 86 km away
  58. 2.078 km SE of False Pass, Alaska · 1271 days ago · 30 km deep · 91 km away
  59. 2.0111 km SSW of False Pass, Alaska · 1270 days ago · 25 km deep · 91 km away
  60. 2.187 km SW of False Pass, Alaska · 1270 days ago · 71 km deep · 60 km away

The first 60 of 91.

Before

  1. 1.9Unimak Island region, Alaska · 1314 days ago · 12 km deep · 37 km away
  2. 2.385 km ENE of Akutan, Alaska · 1314 days ago · 79 km deep · 63 km away
  3. 2.956 km S of King Cove, Alaska · 1315 days ago · 57 km deep · 90 km away
  4. 1.638 km SSW of King Cove, Alaska · 1316 days ago · 7 km deep · 78 km away
  5. 2.290 km SW of False Pass, Alaska · 1317 days ago · 69 km deep · 62 km away
  6. 2.787 km SE of False Pass, Alaska · 1317 days ago · 35 km deep · 98 km away
  7. 2.283 km SE of False Pass, Alaska · 1318 days ago · 13 km deep · 95 km away
  8. 2.041 km SSW of King Cove, Alaska · 1318 days ago · 65 km deep · 84 km away
  9. 2.254 km ENE of Akutan, Alaska · 1320 days ago · 80 km deep · 88 km away
  10. 2.023 km ESE of False Pass, Alaska · 1320 days ago · 13 km deep · 49 km away
  11. 1.954 km SSW of King Cove, Alaska · 1321 days ago · 9 km deep · 82 km away
  12. 2.897 km E of Akutan, Alaska · 1322 days ago · 31 km deep · 85 km away
  13. 2.633 km WNW of False Pass, Alaska · 1322 days ago · 85 km deep · 25 km away
  14. 2.675 km SW of False Pass, Alaska · 1322 days ago · 62 km deep · 44 km away
  15. 2.580 km SW of False Pass, Alaska · 1323 days ago · 63 km deep · 50 km away
  16. 2.789 km S of False Pass, Alaska · 1323 days ago · 35 km deep · 77 km away
  17. 1.648 km WSW of False Pass, Alaska · 1325 days ago · 2 km deep · 19 km away
  18. 2.8Unimak Island region, Alaska · 1325 days ago · 27 km deep · 98 km away
  19. 1.839 km SW of King Cove, Alaska · 1325 days ago · 8 km deep · 75 km away
  20. 2.846 km SSW of King Cove, Alaska · 1326 days ago · 10 km deep · 78 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event av91773391. Read Mon, Sep 28, 2026, 3:32 AM UTC.