Alaska earthquakes

M1.7 earthquake 3 km WSW of Unalaska, Alaska

A magnitude 1.7 earthquake struck 3 km WSW of Unalaska, Alaska on Mon, Mar 27, 2023, 7:52 AM AKDT (15:52 UTC), 4 km (3 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
1.7 (ml), micro
Local time
UTC
2023-03-27 15:52:28 UTC
Depth
4.2 km (2.6 mi), shallow
Epicenter
53.857° N, 166.579° 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 0.8 km horizontally, 1.4 km in depth
Magnitude uncertainty
±0.35
Depth from
From location
Station coverage gap
140°
Stations used
5

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: at least 200 in the 60 days after this one and 56 in the 30 days before it.

After

  1. 2.03 km WSW of Dutch Harbor, Alaska · 1282 days ago · 6 km deep · 2 km away
  2. 1.8Fox Islands, Aleutian Islands, Alaska · 1282 days ago · 5 km deep · 1 km away
  3. 2.463 km NNW of Akutan, Alaska · 1282 days ago · 157 km deep · 99 km away
  4. 2.14 km WSW of Dutch Harbor, Alaska · 1282 days ago · 5 km deep · 3 km away
  5. 1.679 km S of Unalaska, Alaska · 1282 days ago · 26 km deep · 78 km away
  6. 1.669 km SE of Unalaska, Alaska · 1282 days ago · 29 km deep · 70 km away
  7. 1.766 km SE of Unalaska, Alaska · 1282 days ago · 30 km deep · 66 km away
  8. 1.974 km SSE of Akutan, Alaska · 1281 days ago · 24 km deep · 87 km away
  9. 1.6Fox Islands, Aleutian Islands, Alaska · 1281 days ago · 27 km deep · 51 km away
  10. 1.82 km W of Unalaska, Alaska · 1280 days ago · 6 km deep · 2 km away
  11. 1.91 km W of Unalaska, Alaska · 1280 days ago · 5 km deep · 2 km away
  12. 1.63 km W of Unalaska, Alaska · 1280 days ago · 7 km deep · 1 km away
  13. 2.739 km ESE of Akutan, Alaska · 1280 days ago · 70 km deep · 86 km away
  14. 1.72 km WSW of Dutch Harbor, Alaska · 1280 days ago · 6 km deep · 3 km away
  15. 1.72 km SW of Dutch Harbor, Alaska · 1280 days ago · 7 km deep · 2 km away
  16. 1.5Fox Islands, Aleutian Islands, Alaska · 1280 days ago · 5 km deep · 4 km away
  17. 1.5Fox Islands, Aleutian Islands, Alaska · 1280 days ago · 6 km deep · 4 km away
  18. 1.70 km W of Dutch Harbor, Alaska · 1280 days ago · 5 km deep · 4 km away
  19. 1.53 km WSW of Unalaska, Alaska · 1279 days ago · 6 km deep · 1 km away
  20. 1.63 km WSW of Dutch Harbor, Alaska · 1279 days ago · 5 km deep · 3 km away
  21. 1.93 km W of Unalaska, Alaska · 1279 days ago · 6 km deep · 2 km away
  22. 2.660 km SE of Akutan, Alaska · 1279 days ago · 35 km deep · 93 km away
  23. 1.94 km ESE of Unalaska, Alaska · 1279 days ago · 11 km deep · 7 km away
  24. 1.83 km WSW of Dutch Harbor, Alaska · 1279 days ago · 7 km deep · 2 km away
  25. 1.73 km WSW of Dutch Harbor, Alaska · 1279 days ago · 6 km deep · 2 km away
  26. 2.04 km WSW of Dutch Harbor, Alaska · 1279 days ago · 5 km deep · 3 km away
  27. 1.93 km WSW of Dutch Harbor, Alaska · 1279 days ago · 7 km deep · 2 km away
  28. 1.53 km WSW of Dutch Harbor, Alaska · 1279 days ago · 5 km deep · 2 km away
  29. 3.092 km SW of Unalaska, Alaska · 1278 days ago · 94 km deep · 89 km away
  30. 1.93 km WSW of Dutch Harbor, Alaska · 1277 days ago · 5 km deep · 3 km away
  31. 1.5Fox Islands, Aleutian Islands, Alaska · 1277 days ago · 5 km deep · 2 km away
  32. 2.81 km SSW of Unalaska, Alaska · 1277 days ago · 7 km deep · 2 km away
  33. 1.53 km WSW of Dutch Harbor, Alaska · 1277 days ago · 5 km deep · 3 km away
  34. 1.53 km WSW of Unalaska, Alaska · 1277 days ago · 7 km deep · 1 km away
  35. 1.93 km W of Dutch Harbor, Alaska · 1277 days ago · 5 km deep · 3 km away
  36. 1.63 km WSW of Unalaska, Alaska · 1277 days ago · 6 km deep · 0 km away
  37. 1.5Fox Islands, Aleutian Islands, Alaska · 1277 days ago · 6 km deep · 3 km away
  38. 1.95 km WSW of Dutch Harbor, Alaska · 1277 days ago · 7 km deep · 3 km away
  39. 1.63 km WSW of Dutch Harbor, Alaska · 1277 days ago · 7 km deep · 2 km away
  40. 1.83 km WSW of Dutch Harbor, Alaska · 1277 days ago · 7 km deep · 3 km away
  41. 2.12 km WSW of Dutch Harbor, Alaska · 1277 days ago · 5 km deep · 2 km away
  42. 1.92 km WSW of Unalaska, Alaska · 1277 days ago · 5 km deep · 1 km away
  43. 1.63 km WSW of Dutch Harbor, Alaska · 1277 days ago · 6 km deep · 3 km away
  44. 1.83 km W of Unalaska, Alaska · 1277 days ago · 5 km deep · 2 km away
  45. 1.63 km W of Unalaska, Alaska · 1277 days ago · 8 km deep · 2 km away
  46. 1.55 km W of Dutch Harbor, Alaska · 1277 days ago · 6 km deep · 4 km away
  47. 1.52 km W of Dutch Harbor, Alaska · 1277 days ago · 7 km deep · 4 km away
  48. 2.23 km W of Unalaska, Alaska · 1277 days ago · 6 km deep · 1 km away
  49. 2.063 km SE of Unalaska, Alaska · 1277 days ago · 45 km deep · 65 km away
  50. 2.03 km WSW of Dutch Harbor, Alaska · 1277 days ago · 5 km deep · 3 km away
  51. 1.92 km WSW of Dutch Harbor, Alaska · 1276 days ago · 7 km deep · 3 km away
  52. 3.148 km S of Akutan, Alaska · 1276 days ago · 60 km deep · 62 km away
  53. 1.984 km SW of Unalaska, Alaska · 1276 days ago · 64 km deep · 81 km away
  54. 1.780 km SSW of Unalaska, Alaska · 1275 days ago · 22 km deep · 77 km away
  55. 1.684 km SSW of Unalaska, Alaska · 1274 days ago · 25 km deep · 81 km away
  56. 1.680 km SW of Unalaska, Alaska · 1274 days ago · 67 km deep · 77 km away
  57. 1.681 km SSW of Unalaska, Alaska · 1274 days ago · 20 km deep · 79 km away
  58. 1.53 km ESE of Unalaska, Alaska · 1273 days ago · 11 km deep · 6 km away
  59. 3.351 km SE of Unalaska, Alaska · 1273 days ago · 50 km deep · 53 km away
  60. 1.670 km SSW of Unalaska, Alaska · 1272 days ago · 84 km deep · 68 km away

The first 60 of at least 200.

Before

  1. 2.73 km SW of Unalaska, Alaska · 1282 days ago · 8 km deep · 1 km away
  2. 1.878 km NW of Dutch Harbor, Alaska · 1282 days ago · 18 km deep · 79 km away
  3. 1.52 km WSW of Dutch Harbor, Alaska · 1283 days ago · 5 km deep · 3 km away
  4. 2.21 km WSW of Dutch Harbor, Alaska · 1283 days ago · 5 km deep · 3 km away
  5. 2.23 km W of Dutch Harbor, Alaska · 1283 days ago · 5 km deep · 3 km away
  6. 1.53 km WSW of Dutch Harbor, Alaska · 1283 days ago · 6 km deep · 2 km away
  7. 1.52 km WSW of Dutch Harbor, Alaska · 1283 days ago · 7 km deep · 2 km away
  8. 2.234 km SW of Unalaska, Alaska · 1283 days ago · 107 km deep · 31 km away
  9. 2.54 km SW of Unalaska, Alaska · 1283 days ago · 9 km deep · 2 km away
  10. 2.120 km SSE of Unalaska, Alaska · 1283 days ago · 79 km deep · 20 km away
  11. 2.269 km SW of Unalaska, Alaska · 1285 days ago · 102 km deep · 66 km away
  12. 3.780 km S of Unalaska, Alaska · 1285 days ago · 36 km deep · 79 km away
  13. 2.365 km SW of Unalaska, Alaska · 1285 days ago · 70 km deep · 62 km away
  14. 2.729 km ESE of Unalaska, Alaska · 1285 days ago · 73 km deep · 32 km away
  15. 2.5Fox Islands, Aleutian Islands, Alaska · 1286 days ago · 35 km deep · 80 km away
  16. 2.265 km SE of Unalaska, Alaska · 1287 days ago · 26 km deep · 67 km away
  17. 2.225 km SSW of Unalaska, Alaska · 1289 days ago · 71 km deep · 23 km away
  18. 2.253 km W of Dutch Harbor, Alaska · 1290 days ago · 79 km deep · 51 km away
  19. 1.513 km WSW of Unalaska, Alaska · 1290 days ago · 10 km deep · 10 km away
  20. 1.659 km SE of Unalaska, Alaska · 1290 days ago · 39 km deep · 60 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event av91096188. Read Wed, Sep 30, 2026, 3:01 AM UTC.