Alaska earthquakes

M2.4 earthquake Alaska Peninsula

A magnitude 2.4 earthquake struck in the Alaska Peninsula on Thu, Aug 24, 2017, 12:21 AM AKDT (08:21 UTC), 41 km (26 mi) below the surface.

A larger quake followed: M3.4 95 km ESE of Chignik, 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
2.4 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2017-08-24 08:21:19 UTC
Depth
41.3 km (25.7 mi), shallow
Epicenter
56.425° N, 156.959° 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
2.4ML, local (Richter)Alaska Earthquake CenterPreferred · Preliminary
2.4ML, local (Richter)USGS National Earthquake Information CenterReviewed

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
26

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 34 in the 60 days after this one and 22 in the 30 days before it.

After

  1. 1.953 km SE of Ugashik, Alaska · 3325 days ago · 83 km deep · 85 km away
  2. 2.530 km ENE of Chignik, Alaska · 3319 days ago · 84 km deep · 60 km away
  3. 2.445 km SSW of Ugashik, Alaska · 3315 days ago · 3 km deep · 93 km away
  4. 1.953 km SSW of Ugashik, Alaska · 3313 days ago · 8 km deep · 80 km away
  5. 2.461 km SSE of Ugashik, Alaska · 3312 days ago · 1 km deep · 65 km away
  6. 2.365 km ENE of Chignik, Alaska · 3311 days ago · 93 km deep · 36 km away
  7. 2.052 km E of Port Heiden, Alaska · 3311 days ago · 13 km deep · 79 km away
  8. 2.293 km SE of Chignik, Alaska · 3310 days ago · 22 km deep · 85 km away
  9. 2.335 km SE of Chignik, Alaska · 3308 days ago · 5 km deep · 74 km away
  10. 1.834 km SE of Chignik, Alaska · 3307 days ago · 8 km deep · 78 km away
  11. 2.615 km E of Chignik, Alaska · 3305 days ago · 14 km deep · 76 km away
  12. 1.925 km SE of Chignik, Alaska · 3304 days ago · 10 km deep · 75 km away
  13. 2.699 km ESE of Ugashik, Alaska · 3304 days ago · 82 km deep · 93 km away
  14. 3.495 km ESE of Chignik, Alaska · 3303 days ago · 45 km deep · 47 km away
  15. 2.151 km E of Port Heiden, Alaska · 3303 days ago · 2 km deep · 76 km away
  16. 2.145 km SE of Ugashik, Alaska · 3301 days ago · 98 km deep · 86 km away
  17. 2.154 km E of Chignik, Alaska · 3299 days ago · 52 km deep · 37 km away
  18. 1.9100 km WSW of Akhiok, Alaska · 3298 days ago · 60 km deep · 80 km away
  19. 2.656 km ESE of Port Heiden, Alaska · 3298 days ago · 86 km deep · 63 km away
  20. 2.2112 km SE of Ugashik, Alaska · 3298 days ago · 56 km deep · 59 km away
  21. 2.2116 km E of Chignik, Alaska · 3297 days ago · 50 km deep · 29 km away
  22. 2.536 km SE of Port Heiden, Alaska · 3297 days ago · 113 km deep · 81 km away
  23. 2.1134 km WSW of Akhiok, Alaska · 3296 days ago · 13 km deep · 52 km away
  24. 2.647 km SSW of Ugashik, Alaska · 3296 days ago · 10 km deep · 86 km away
  25. 1.762 km SSE of Ugashik, Alaska · 3293 days ago · 78 km deep · 67 km away
  26. 1.549 km SSW of Ugashik, Alaska · 3293 days ago · 2 km deep · 82 km away
  27. 1.7126 km E of Chignik, Alaska · 3288 days ago · 79 km deep · 36 km away
  28. 2.685 km SE of Ugashik, Alaska · 3286 days ago · 84 km deep · 82 km away
  29. 2.567 km SE of Ugashik, Alaska · 3283 days ago · 37 km deep · 71 km away
  30. 2.349 km SE of Ugashik, Alaska · 3279 days ago · 88 km deep · 88 km away
  31. 2.0122 km WSW of Akhiok, Alaska · 3275 days ago · 75 km deep · 58 km away
  32. 3.048 km E of Port Heiden, Alaska · 3271 days ago · 9 km deep · 84 km away
  33. 2.339 km NE of Chignik, Alaska · 3267 days ago · 87 km deep · 59 km away
  34. 1.964 km SE of Ugashik, Alaska · 3267 days ago · 11 km deep · 88 km away

Before

  1. 3.292 km W of Akhiok, Alaska · 3328 days ago · 49 km deep · 100 km away
  2. 1.728 km SE of Chignik, Alaska · 3330 days ago · 6 km deep · 77 km away
  3. 1.854 km E of Port Heiden, Alaska · 3330 days ago · 2 km deep · 76 km away
  4. 2.052 km E of Port Heiden, Alaska · 3330 days ago · 5 km deep · 79 km away
  5. 2.070 km E of Chignik, Alaska · 3331 days ago · 44 km deep · 27 km away
  6. 1.952 km S of Ugashik, Alaska · 3334 days ago · 1 km deep · 74 km away
  7. 2.199 km SSE of Ugashik, Alaska · 3334 days ago · 47 km deep · 31 km away
  8. 2.352 km E of Port Heiden, Alaska · 3335 days ago · 9 km deep · 78 km away · felt by 1
  9. 2.1120 km SSE of Ugashik, Alaska · 3340 days ago · 65 km deep · 39 km away
  10. 2.1112 km SSE of Ugashik, Alaska · 3342 days ago · 84 km deep · 43 km away
  11. 1.943 km SSW of Ugashik, Alaska · 3343 days ago · 4 km deep · 87 km away
  12. 2.337 km SE of Chignik, Alaska · 3344 days ago · 8 km deep · 71 km away
  13. 1.984 km W of Akhiok, Alaska · 3344 days ago · 9 km deep · 99 km away
  14. 3.390 km W of Akhiok, Alaska · 3345 days ago · 59 km deep · 100 km away
  15. 2.531 km SSE of Ugashik, Alaska · 3346 days ago · 7 km deep · 94 km away
  16. 2.356 km NE of Chignik, Alaska · 3348 days ago · 112 km deep · 61 km away
  17. 2.067 km ENE of Chignik, Alaska · 3349 days ago · 71 km deep · 40 km away
  18. 2.359 km ESE of Chignik, Alaska · 3349 days ago · 48 km deep · 43 km away
  19. 1.572 km E of Port Heiden, Alaska · 3351 days ago · 3 km deep · 57 km away
  20. 3.247 km SE of Chignik, Alaska · 3353 days ago · 44 km deep · 65 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak017aufpwx7 (also filed as ak16774264, us2000agfm). Read Fri, Oct 2, 2026, 9:03 AM UTC.