Alaska earthquakes

M2.8 earthquake 73 km SE of Perryville, Alaska

A magnitude 2.8 earthquake struck 73 km SE of Perryville, Alaska on Thu, Jul 29, 2021, 9:33 AM AKDT (17:33 UTC), 25 km (16 mi) below the surface.

A larger quake followed: M6.9 125 km SE of Perryville, 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
2.8 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2021-07-29 17:33:49 UTC
Depth
25.0 km (15.5 mi), shallow
Epicenter
55.407° N, 158.381° W
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
2.8ML, local (Richter)Alaska Earthquake CenterPreferred · Preliminary
3.1ML, local (Richter)USGS National Earthquake Information CenterReviewed · ±0.074 · 24 stations

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
44

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 162 in the 30 days before it.

After

  1. 3.1155 km SSE of Chignik, Alaska · 1891 days ago · 43 km deep · 88 km away
  2. 3.2131 km SSE of Perryville, Alaska · 1891 days ago · 8 km deep · 63 km away
  3. 2.6128 km SE of Perryville, Alaska · 1891 days ago · 27 km deep · 55 km away
  4. 3.0138 km SSE of Perryville, Alaska · 1891 days ago · 37 km deep · 68 km away
  5. 3.0138 km SE of Chignik, Alaska · 1891 days ago · 25 km deep · 87 km away
  6. 3.7145 km SE of Chignik, Alaska · 1891 days ago · 20 km deep · 87 km away
  7. 3.5154 km SE of Chignik, Alaska · 1891 days ago · 21 km deep · 98 km away
  8. 2.6125 km SSE of Perryville, Alaska · 1891 days ago · 14 km deep · 58 km away
  9. 2.066 km SE of Perryville, Alaska · 1891 days ago · 18 km deep · 7 km away
  10. 2.261 km SE of Perryville, Alaska · 1891 days ago · 24 km deep · 14 km away
  11. 3.191 km SSE of Chignik, Alaska · 1891 days ago · 11 km deep · 40 km away
  12. 5.0142 km SE of Chignik, Alaska · 1891 days ago · 29 km deep · 97 km away
  13. 3.1136 km SE of Perryville, Alaska · 1891 days ago · 25 km deep · 63 km away
  14. 2.057 km SE of Perryville, Alaska · 1891 days ago · 11 km deep · 16 km away
  15. 2.5135 km SSE of Perryville, Alaska · 1891 days ago · 28 km deep · 62 km away
  16. 4.7128 km SSE of Perryville, Alaska · 1891 days ago · 3 km deep · 56 km away
  17. 3.2145 km SSE of Chignik, Alaska · 1891 days ago · 10 km deep · 79 km away
  18. 3.4161 km SE of Chignik, Alaska · 1891 days ago · 17 km deep · 98 km away
  19. 4.4153 km SSE of Chignik, Alaska · 1891 days ago · 24 km deep · 87 km away
  20. 2.8137 km SSE of Chignik, Alaska · 1891 days ago · 26 km deep · 72 km away
  21. 4.8150 km SSE of Chignik, Alaska · 1891 days ago · 1 km deep · 85 km away
  22. 2.8146 km SE of Perryville, Alaska · 1891 days ago · 26 km deep · 73 km away
  23. 2.7138 km SE of Chignik, Alaska · 1891 days ago · 25 km deep · 88 km away
  24. 2.372 km ESE of Chignik, Alaska · 1891 days ago · 14 km deep · 85 km away
  25. 4.0153 km SSE of Chignik, Alaska · 1891 days ago · 16 km deep · 87 km away
  26. 2.7138 km SE of Perryville, Alaska · 1891 days ago · 17 km deep · 66 km away
  27. 2.6146 km SE of Perryville, Alaska · 1891 days ago · 35 km deep · 74 km away
  28. 2.7128 km SE of Perryville, Alaska · 1891 days ago · 30 km deep · 58 km away
  29. 1.983 km ESE of Sand Point, Alaska · 1891 days ago · 33 km deep · 63 km away
  30. 2.7150 km SE of Perryville, Alaska · 1891 days ago · 47 km deep · 77 km away
  31. 2.272 km SE of Perryville, Alaska · 1891 days ago · 20 km deep · 7 km away
  32. 2.4124 km SE of Perryville, Alaska · 1891 days ago · 45 km deep · 51 km away
  33. 2.3139 km SSE of Perryville, Alaska · 1891 days ago · 45 km deep · 67 km away
  34. 2.198 km SE of Perryville, Alaska · 1891 days ago · 4 km deep · 24 km away
  35. 2.7139 km SE of Perryville, Alaska · 1891 days ago · 46 km deep · 65 km away
  36. 2.5128 km SE of Chignik, Alaska · 1891 days ago · 39 km deep · 79 km away
  37. 2.7143 km SE of Perryville, Alaska · 1891 days ago · 42 km deep · 71 km away
  38. 2.4128 km SE of Perryville, Alaska · 1891 days ago · 45 km deep · 55 km away
  39. 2.3130 km SSE of Chignik, Alaska · 1891 days ago · 53 km deep · 66 km away
  40. 2.2118 km SSE of Perryville, Alaska · 1891 days ago · 34 km deep · 48 km away
  41. 1.959 km SSE of Perryville, Alaska · 1891 days ago · 15 km deep · 20 km away
  42. 3.2152 km SSE of Chignik, Alaska · 1891 days ago · 41 km deep · 85 km away
  43. 2.5122 km SSE of Perryville, Alaska · 1891 days ago · 25 km deep · 51 km away
  44. 5.5140 km SE of Chignik, Alaska · 1891 days ago · 43 km deep · 90 km away · felt by 1
  45. 2.6160 km SSE of Chignik, Alaska · 1891 days ago · 37 km deep · 93 km away
  46. 3.2153 km SE of Chignik, Alaska · 1891 days ago · 35 km deep · 97 km away
  47. 2.368 km SE of Perryville, Alaska · 1891 days ago · 29 km deep · 5 km away
  48. 1.970 km SE of Perryville, Alaska · 1891 days ago · 48 km deep · 9 km away
  49. 3.0118 km SE of Perryville, Alaska · 1891 days ago · 46 km deep · 45 km away
  50. 2.7146 km SE of Chignik, Alaska · 1891 days ago · 19 km deep · 97 km away
  51. 2.5157 km SSE of Chignik, Alaska · 1891 days ago · 40 km deep · 92 km away
  52. 2.3137 km SE of Perryville, Alaska · 1891 days ago · 36 km deep · 64 km away
  53. 2.5108 km SSE of Perryville, Alaska · 1891 days ago · 29 km deep · 38 km away
  54. 2.4139 km SE of Perryville, Alaska · 1891 days ago · 42 km deep · 67 km away
  55. 2.3134 km SE of Perryville, Alaska · 1891 days ago · 42 km deep · 61 km away
  56. 2.3107 km SSE of Perryville, Alaska · 1891 days ago · 39 km deep · 39 km away
  57. 2.2113 km SE of Perryville, Alaska · 1891 days ago · 45 km deep · 40 km away
  58. 4.4104 km SSE of Perryville, Alaska · 1891 days ago · 17 km deep · 46 km away
  59. 3.8158 km SSE of Chignik, Alaska · 1891 days ago · 35 km deep · 90 km away
  60. 2.293 km SSE of Perryville, Alaska · 1891 days ago · 24 km deep · 25 km away

The first 60 of at least 200.

Before

  1. 2.8106 km SSE of Perryville, Alaska · 1891 days ago · 20 km deep · 45 km away
  2. 2.4136 km SE of Chignik, Alaska · 1891 days ago · 10 km deep · 94 km away
  3. 2.6106 km SSE of Perryville, Alaska · 1891 days ago · 19 km deep · 42 km away
  4. 3.2113 km ESE of Perryville, Alaska · 1891 days ago · 12 km deep · 48 km away
  5. 2.5125 km SE of Chignik, Alaska · 1891 days ago · 10 km deep · 82 km away
  6. 2.6157 km SSE of Chignik, Alaska · 1891 days ago · 26 km deep · 90 km away
  7. 5.3155 km SE of Chignik, Alaska · 1891 days ago · 36 km deep · 95 km away · tsunami flag
  8. 2.256 km SE of Perryville, Alaska · 1891 days ago · 34 km deep · 17 km away
  9. 2.8125 km SSE of Perryville, Alaska · 1891 days ago · 7 km deep · 57 km away
  10. 2.4133 km SSE of Perryville, Alaska · 1891 days ago · 20 km deep · 64 km away
  11. 3.2124 km SSE of Perryville, Alaska · 1891 days ago · 18 km deep · 57 km away
  12. 2.7139 km SE of Perryville, Alaska · 1891 days ago · 21 km deep · 68 km away
  13. 2.5144 km SSE of Chignik, Alaska · 1891 days ago · 2 km deep · 80 km away
  14. 3.6150 km SE of Chignik, Alaska · 1891 days ago · 23 km deep · 98 km away
  15. 2.6133 km SE of Chignik, Alaska · 1891 days ago · 17 km deep · 83 km away
  16. 2.269 km SE of Perryville, Alaska · 1891 days ago · 10 km deep · 8 km away
  17. 2.7143 km SE of Chignik, Alaska · 1891 days ago · 17 km deep · 84 km away
  18. 3.1148 km SE of Perryville, Alaska · 1891 days ago · 20 km deep · 75 km away
  19. 2.690 km SSE of Perryville, Alaska · 1891 days ago · 24 km deep · 40 km away
  20. 3.0Alaska Peninsula · 1891 days ago · 17 km deep · 67 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0219nl6f8u (also filed as us6000f7a3). Read Fri, Oct 2, 2026, 11:51 PM UTC.