Alaska earthquakes

M1.9 earthquake 55 km S of Unalaska, Alaska

A magnitude 1.9 earthquake struck 55 km S of Unalaska, Alaska on Thu, Feb 23, 2023, 4:46 PM AKST (01:46 UTC), 55 km (34 mi) below the surface.

A larger quake followed: M4.9 Fox 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
1.9 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2023-02-24 01:46:56 UTC
Depth
54.8 km (34.1 mi), shallow
Epicenter
53.371° N, 166.565° 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.

Stations used
17

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 185 in the 60 days after this one and 70 in the 30 days before it.

After

  1. 2.078 km SSE of Akutan, Alaska · 1319 days ago · 37 km deep · 85 km away
  2. 2.054 km SSE of Akutan, Alaska · 1319 days ago · 79 km deep · 83 km away
  3. 2.1Fox Islands, Aleutian Islands, Alaska · 1319 days ago · 69 km deep · 82 km away
  4. 1.971 km SSE of Akutan, Alaska · 1319 days ago · 18 km deep · 84 km away
  5. 2.945 km SSE of Unalaska, Alaska · 1318 days ago · 66 km deep · 29 km away
  6. 2.815 km NW of Dutch Harbor, Alaska · 1318 days ago · 112 km deep · 68 km away
  7. 2.5Fox Islands, Aleutian Islands, Alaska · 1318 days ago · 68 km deep · 79 km away
  8. 3.6102 km SSE of Akutan, Alaska · 1317 days ago · 35 km deep · 96 km away
  9. 1.647 km WSW of Unalaska, Alaska · 1316 days ago · 15 km deep · 50 km away
  10. 1.930 km SSW of Akutan, Alaska · 1315 days ago · 72 km deep · 70 km away
  11. 1.981 km SSW of Unalaska, Alaska · 1315 days ago · 18 km deep · 33 km away
  12. 2.884 km SSW of Unalaska, Alaska · 1315 days ago · 35 km deep · 34 km away
  13. 1.69 km NNE of Dutch Harbor, Alaska · 1315 days ago · 7 km deep · 67 km away
  14. 2.5Fox Islands, Aleutian Islands, Alaska · 1314 days ago · 35 km deep · 96 km away
  15. 3.242 km SW of Unalaska, Alaska · 1313 days ago · 80 km deep · 34 km away
  16. 2.171 km SSE of Akutan, Alaska · 1312 days ago · 55 km deep · 85 km away
  17. 1.549 km SW of Unalaska, Alaska · 1312 days ago · 9 km deep · 43 km away
  18. 2.7Fox Islands, Aleutian Islands, Alaska · 1311 days ago · 10 km deep · 85 km away
  19. 2.554 km SW of Unalaska, Alaska · 1311 days ago · 9 km deep · 31 km away
  20. 2.248 km SE of Akutan, Alaska · 1311 days ago · 53 km deep · 99 km away
  21. 3.492 km NE of Nikolski, Alaska · 1310 days ago · 90 km deep · 89 km away
  22. 1.966 km SE of Unalaska, Alaska · 1309 days ago · 22 km deep · 55 km away
  23. 2.867 km SE of Unalaska, Alaska · 1309 days ago · 35 km deep · 54 km away
  24. 2.130 km SW of Akutan, Alaska · 1308 days ago · 82 km deep · 69 km away
  25. 2.793 km S of Unalaska, Alaska · 1307 days ago · 20 km deep · 39 km away
  26. 3.8142 km S of Unalaska, Alaska · 1307 days ago · 25 km deep · 87 km away
  27. 2.5147 km S of Unalaska, Alaska · 1307 days ago · 26 km deep · 92 km away
  28. 2.0129 km ESE of Nikolski, Alaska · 1307 days ago · 13 km deep · 86 km away
  29. 3.3118 km ESE of Nikolski, Alaska · 1306 days ago · 35 km deep · 97 km away
  30. 1.873 km WSW of Unalaska, Alaska · 1306 days ago · 13 km deep · 69 km away
  31. 2.626 km SSW of Unalaska, Alaska · 1306 days ago · 84 km deep · 33 km away
  32. 2.979 km SSE of Unalaska, Alaska · 1305 days ago · 35 km deep · 39 km away
  33. 1.872 km SSE of Unalaska, Alaska · 1305 days ago · 42 km deep · 38 km away
  34. 1.880 km SSE of Akutan, Alaska · 1305 days ago · 17 km deep · 90 km away
  35. 1.742 km S of Unalaska, Alaska · 1304 days ago · 72 km deep · 14 km away
  36. 2.348 km ESE of Unalaska, Alaska · 1304 days ago · 42 km deep · 58 km away
  37. 1.571 km SSE of Akutan, Alaska · 1304 days ago · 25 km deep · 81 km away
  38. 1.674 km SSE of Akutan, Alaska · 1303 days ago · 50 km deep · 81 km away
  39. 2.771 km ENE of Nikolski, Alaska · 1303 days ago · 54 km deep · 90 km away
  40. 3.4Fox Islands, Aleutian Islands, Alaska · 1302 days ago · 35 km deep · 52 km away
  41. 2.181 km E of Nikolski, Alaska · 1302 days ago · 22 km deep · 97 km away
  42. 2.379 km SSE of Akutan, Alaska · 1302 days ago · 26 km deep · 78 km away
  43. 2.070 km SE of Unalaska, Alaska · 1301 days ago · 21 km deep · 46 km away
  44. 2.170 km SSW of Unalaska, Alaska · 1301 days ago · 47 km deep · 24 km away
  45. 2.176 km SW of Unalaska, Alaska · 1300 days ago · 13 km deep · 58 km away
  46. 2.6Fox Islands, Aleutian Islands, Alaska · 1300 days ago · 10 km deep · 88 km away
  47. 2.890 km ENE of Nikolski, Alaska · 1299 days ago · 80 km deep · 78 km away
  48. 3.481 km S of Unalaska, Alaska · 1299 days ago · 35 km deep · 26 km away
  49. 2.2Fox Islands, Aleutian Islands, Alaska · 1299 days ago · 26 km deep · 23 km away
  50. 2.062 km SE of Unalaska, Alaska · 1297 days ago · 41 km deep · 51 km away
  51. 1.669 km SE of Unalaska, Alaska · 1296 days ago · 25 km deep · 58 km away
  52. 1.659 km SE of Unalaska, Alaska · 1296 days ago · 39 km deep · 53 km away
  53. 1.513 km WSW of Unalaska, Alaska · 1296 days ago · 10 km deep · 51 km away
  54. 2.253 km W of Dutch Harbor, Alaska · 1296 days ago · 79 km deep · 71 km away
  55. 2.225 km SSW of Unalaska, Alaska · 1294 days ago · 71 km deep · 34 km away
  56. 2.265 km SE of Unalaska, Alaska · 1293 days ago · 26 km deep · 50 km away
  57. 2.5Fox Islands, Aleutian Islands, Alaska · 1292 days ago · 35 km deep · 30 km away
  58. 2.0137 km S of Unalaska, Alaska · 1291 days ago · 26 km deep · 81 km away
  59. 2.729 km ESE of Unalaska, Alaska · 1291 days ago · 73 km deep · 56 km away
  60. 2.365 km SW of Unalaska, Alaska · 1291 days ago · 70 km deep · 45 km away

The first 60 of 185.

Before

  1. 2.5129 km ESE of Nikolski, Alaska · 1320 days ago · 10 km deep · 97 km away
  2. 2.724 km SE of Unalaska, Alaska · 1320 days ago · 80 km deep · 43 km away
  3. 2.184 km SSE of Akutan, Alaska · 1321 days ago · 13 km deep · 88 km away
  4. 2.666 km SE of Akutan, Alaska · 1322 days ago · 35 km deep · 97 km away
  5. 1.672 km SW of Unalaska, Alaska · 1323 days ago · 13 km deep · 55 km away
  6. 1.758 km SSE of Unalaska, Alaska · 1323 days ago · 26 km deep · 18 km away
  7. 1.767 km S of Unalaska, Alaska · 1324 days ago · 30 km deep · 15 km away
  8. 2.8107 km SE of Unalaska, Alaska · 1324 days ago · 35 km deep · 80 km away
  9. 1.995 km SW of Unalaska, Alaska · 1325 days ago · 18 km deep · 59 km away
  10. 2.0107 km E of Nikolski, Alaska · 1325 days ago · 26 km deep · 68 km away
  11. 1.962 km SE of Akutan, Alaska · 1326 days ago · 25 km deep · 99 km away
  12. 1.612 km SW of Akutan, Alaska · 1326 days ago · 15 km deep · 87 km away
  13. 1.620 km WSW of Dutch Harbor, Alaska · 1326 days ago · 7 km deep · 55 km away
  14. 2.5Fox Islands, Aleutian Islands, Alaska · 1327 days ago · 30 km deep · 26 km away
  15. 1.7Fox Islands, Aleutian Islands, Alaska · 1327 days ago · 5 km deep · 62 km away
  16. 1.78 km ENE of Unalaska, Alaska · 1328 days ago · 6 km deep · 60 km away
  17. 2.574 km SSE of Akutan, Alaska · 1328 days ago · 30 km deep · 83 km away
  18. 2.3131 km SSW of Unalaska, Alaska · 1329 days ago · 11 km deep · 77 km away
  19. 2.6Fox Islands, Aleutian Islands, Alaska · 1329 days ago · 8 km deep · 52 km away
  20. 1.957 km SW of Unalaska, Alaska · 1329 days ago · 21 km deep · 37 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0232izfi2p. Read Mon, Oct 5, 2026, 2:36 PM UTC.