Alaska earthquakes

M2.3 earthquake 88 km S of Unalaska, Alaska

A magnitude 2.3 earthquake struck 88 km S of Unalaska, Alaska on Tue, Aug 4, 2026, 11:00 PM AKDT (07:00 UTC), 25 km (15 mi) below the surface.

A larger quake followed: M4.0 92 km SSW of Unalaska, Alaska. This one was a foreshock.

Unalaska forecastMore in Alaska

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
2.3 (ml), micro
Local time
UTC
2026-08-05 07:00:00 UTC
Depth
24.7 km (15.3 mi), shallow
Epicenter
53.076° N, 166.584° 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 14.6 km horizontally, 13.7 km in depth
Magnitude uncertainty
±0.20
Station coverage gap
268°, poorly surrounded by stations
Stations used
10

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 172 since this one and 54 in the 30 days before it.

After

  1. 2.588 km S of Unalaska, Alaska · 56 days ago · 29 km deep · 12 km away
  2. 2.3100 km SSE of Akutan, Alaska · 56 days ago · 10 km deep · 84 km away
  3. 2.068 km SE of Unalaska, Alaska · 56 days ago · 31 km deep · 56 km away
  4. 1.963 km SE of Unalaska, Alaska · 55 days ago · 36 km deep · 56 km away
  5. 1.862 km SW of Unalaska, Alaska · 55 days ago · 15 km deep · 50 km away
  6. 2.289 km SSE of Akutan, Alaska · 54 days ago · 21 km deep · 98 km away
  7. 2.2122 km SE of Unalaska, Alaska · 54 days ago · 20 km deep · 76 km away
  8. 1.962 km SSW of Unalaska, Alaska · 54 days ago · 14 km deep · 45 km away
  9. 3.167 km SE of Unalaska, Alaska · 54 days ago · 35 km deep · 70 km away
  10. 1.964 km SSW of Unalaska, Alaska · 54 days ago · 18 km deep · 38 km away
  11. 2.161 km SSW of Unalaska, Alaska · 54 days ago · 72 km deep · 39 km away
  12. 2.089 km SSE of Akutan, Alaska · 53 days ago · 16 km deep · 97 km away
  13. 2.1144 km S of Unalaska, Alaska · 53 days ago · 6 km deep · 56 km away
  14. 2.589 km E of Nikolski, Alaska · 51 days ago · 37 km deep · 71 km away
  15. 2.3138 km S of Unalaska, Alaska · 51 days ago · 1 km deep · 50 km away
  16. 2.5135 km ESE of Nikolski, Alaska · 51 days ago · 10 km deep · 65 km away
  17. 3.0131 km S of Unalaska, Alaska · 51 days ago · 16 km deep · 43 km away
  18. 2.466 km SSW of Unalaska, Alaska · 50 days ago · 34 km deep · 26 km away
  19. 1.8102 km SSW of Unalaska, Alaska · 50 days ago · 29 km deep · 29 km away
  20. 1.9141 km S of Unalaska, Alaska · 50 days ago · 20 km deep · 53 km away
  21. 1.893 km S of Unalaska, Alaska · 50 days ago · 15 km deep · 4 km away
  22. 1.742 km S of Unalaska, Alaska · 50 days ago · 69 km deep · 47 km away
  23. 1.890 km SSE of Unalaska, Alaska · 50 days ago · 18 km deep · 48 km away
  24. 1.890 km SSE of Unalaska, Alaska · 50 days ago · 20 km deep · 49 km away
  25. 1.986 km SSE of Akutan, Alaska · 50 days ago · 15 km deep · 96 km away
  26. 2.090 km SSE of Akutan, Alaska · 50 days ago · 28 km deep · 98 km away
  27. 2.897 km SSW of Unalaska, Alaska · 49 days ago · 35 km deep · 18 km away
  28. 2.0100 km E of Nikolski, Alaska · 49 days ago · 24 km deep · 63 km away
  29. 1.972 km SSE of Akutan, Alaska · 49 days ago · 20 km deep · 90 km away
  30. 2.190 km S of Unalaska, Alaska · 49 days ago · 16 km deep · 2 km away
  31. 1.974 km SSE of Unalaska, Alaska · 49 days ago · 26 km deep · 37 km away
  32. 2.295 km SSW of Unalaska, Alaska · 48 days ago · 28 km deep · 23 km away
  33. 1.940 km SW of Unalaska, Alaska · 48 days ago · 12 km deep · 65 km away
  34. 3.292 km E of Nikolski, Alaska · 48 days ago · 35 km deep · 64 km away
  35. 2.185 km SSE of Unalaska, Alaska · 48 days ago · 12 km deep · 45 km away
  36. 3.561 km SSW of Unalaska, Alaska · 48 days ago · 10 km deep · 44 km away · felt by 5
  37. 2.059 km SSW of Unalaska, Alaska · 48 days ago · 20 km deep · 50 km away
  38. 1.986 km SSW of Unalaska, Alaska · 48 days ago · 11 km deep · 42 km away
  39. 2.286 km ESE of Nikolski, Alaska · 47 days ago · 25 km deep · 81 km away
  40. 2.287 km SE of Unalaska, Alaska · 47 days ago · 21 km deep · 71 km away
  41. 2.359 km SSW of Unalaska, Alaska · 47 days ago · 4 km deep · 47 km away
  42. 2.628 km SE of Unalaska, Alaska · 46 days ago · 74 km deep · 77 km away
  43. 2.241 km SSE of Unalaska, Alaska · 46 days ago · 72 km deep · 52 km away
  44. 2.760 km SSW of Unalaska, Alaska · 46 days ago · 1 km deep · 44 km away
  45. 2.158 km SSW of Unalaska, Alaska · 46 days ago · 3 km deep · 48 km away
  46. 2.460 km SSW of Unalaska, Alaska · 46 days ago · 2 km deep · 44 km away
  47. 2.156 km SSW of Unalaska, Alaska · 46 days ago · 11 km deep · 50 km away
  48. 2.598 km SSW of Unalaska, Alaska · 46 days ago · 23 km deep · 22 km away
  49. 2.687 km S of Unalaska, Alaska · 46 days ago · 20 km deep · 3 km away
  50. 2.384 km SSE of Akutan, Alaska · 46 days ago · 17 km deep · 85 km away
  51. 1.748 km S of Akutan, Alaska · 44 days ago · 63 km deep · 94 km away
  52. 1.959 km WSW of Unalaska, Alaska · 44 days ago · 100 km deep · 74 km away
  53. 3.487 km SSW of Unalaska, Alaska · 44 days ago · 27 km deep · 19 km away
  54. 2.4134 km ESE of Nikolski, Alaska · 43 days ago · 12 km deep · 81 km away
  55. 2.187 km SE of Unalaska, Alaska · 43 days ago · 26 km deep · 77 km away
  56. 2.279 km S of Unalaska, Alaska · 42 days ago · 40 km deep · 10 km away
  57. 2.588 km SE of Unalaska, Alaska · 42 days ago · 35 km deep · 69 km away
  58. 2.3149 km ESE of Nikolski, Alaska · 42 days ago · 5 km deep · 69 km away
  59. 1.957 km SW of Unalaska, Alaska · 41 days ago · 13 km deep · 51 km away
  60. 2.057 km SW of Unalaska, Alaska · 41 days ago · 14 km deep · 52 km away

The first 60 of 172.

Before

  1. 3.085 km SSE of Akutan, Alaska · 58 days ago · 10 km deep · 98 km away
  2. 2.961 km E of Nikolski, Alaska · 58 days ago · 35 km deep · 92 km away
  3. 2.595 km SSW of Unalaska, Alaska · 58 days ago · 39 km deep · 24 km away
  4. 2.586 km SE of Unalaska, Alaska · 59 days ago · 20 km deep · 73 km away
  5. 2.092 km E of Nikolski, Alaska · 59 days ago · 43 km deep · 66 km away
  6. 3.095 km SE of Unalaska, Alaska · 60 days ago · 30 km deep · 66 km away
  7. 2.047 km SSE of Unalaska, Alaska · 60 days ago · 71 km deep · 54 km away
  8. 2.390 km SSE of Akutan, Alaska · 61 days ago · 20 km deep · 93 km away
  9. 2.194 km SSW of Unalaska, Alaska · 61 days ago · 43 km deep · 23 km away
  10. 2.4142 km S of Unalaska, Alaska · 61 days ago · 5 km deep · 54 km away
  11. 1.977 km SW of Unalaska, Alaska · 61 days ago · 23 km deep · 55 km away
  12. 2.190 km E of Nikolski, Alaska · 61 days ago · 39 km deep · 69 km away
  13. 2.597 km SSW of Unalaska, Alaska · 61 days ago · 35 km deep · 26 km away
  14. 2.098 km S of Unalaska, Alaska · 63 days ago · 25 km deep · 10 km away
  15. 2.193 km SSE of Unalaska, Alaska · 63 days ago · 18 km deep · 42 km away
  16. 1.833 km SE of Unalaska, Alaska · 64 days ago · 79 km deep · 76 km away
  17. 2.699 km SSW of Unalaska, Alaska · 66 days ago · 24 km deep · 22 km away
  18. 2.356 km SW of Unalaska, Alaska · 66 days ago · 15 km deep · 54 km away
  19. 2.571 km S of Unalaska, Alaska · 66 days ago · 59 km deep · 20 km away
  20. 1.77 km W of Dutch Harbor, Alaska · 67 days ago · 6 km deep · 91 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event aka2026pjmsyi. Read Thu, Oct 1, 2026, 12:37 AM UTC.