Alaska earthquakes

M2.3 earthquake 39 km NE of Chignik, Alaska

A magnitude 2.3 earthquake struck 39 km NE of Chignik, Alaska on Sun, Oct 22, 2017, 2:51 AM AKDT (10:51 UTC), 87 km (54 mi) below the surface.

A larger quake followed: M4.2 50 km E of Port Heiden, 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
2.3 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2017-10-22 10:51:45 UTC
Depth
86.8 km (53.9 mi), intermediate-depth
Epicenter
56.520° N, 157.903° 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
30

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 33 in the 60 days after this one and 8 in the 30 days before it.

After

  1. 2.251 km ESE of Perryville, Alaska · 3265 days ago · 41 km deep · 89 km away
  2. 2.245 km SSE of Ugashik, Alaska · 3263 days ago · 90 km deep · 85 km away
  3. 2.315 km N of Chignik, Alaska · 3261 days ago · 93 km deep · 30 km away
  4. 2.170 km SE of Chignik, Alaska · 3257 days ago · 16 km deep · 74 km away
  5. 1.639 km S of Ugashik, Alaska · 3257 days ago · 5 km deep · 76 km away
  6. 1.617 km E of Perryville, Alaska · 3254 days ago · 69 km deep · 92 km away
  7. 2.723 km E of Chignik, Alaska · 3254 days ago · 63 km deep · 30 km away
  8. 2.360 km E of Port Heiden, Alaska · 3252 days ago · 4 km deep · 54 km away
  9. 1.823 km ENE of Perryville, Alaska · 3252 days ago · 69 km deep · 82 km away
  10. 1.758 km E of Port Heiden, Alaska · 3250 days ago · 15 km deep · 52 km away
  11. 1.991 km ENE of Chignik, Alaska · 3249 days ago · 69 km deep · 55 km away
  12. 2.051 km S of Ugashik, Alaska · 3243 days ago · 7 km deep · 64 km away
  13. 4.250 km E of Port Heiden, Alaska · 3241 days ago · 13 km deep · 52 km away · felt by 1
  14. 2.610 km WNW of Chignik Lake, Alaska · 3240 days ago · 4 km deep · 69 km away
  15. 2.753 km S of Chignik, Alaska · 3237 days ago · 49 km deep · 81 km away
  16. 2.277 km E of Chignik, Alaska · 3236 days ago · 38 km deep · 48 km away
  17. 3.087 km SE of Chignik, Alaska · 3234 days ago · 10 km deep · 89 km away
  18. 2.595 km ENE of Chignik, Alaska · 3231 days ago · 79 km deep · 60 km away
  19. 2.333 km SSW of Ugashik, Alaska · 3230 days ago · 112 km deep · 82 km away
  20. 2.251 km ENE of Port Heiden, Alaska · 3228 days ago · 12 km deep · 64 km away
  21. 1.926 km S of Port Heiden, Alaska · 3227 days ago · 12 km deep · 48 km away
  22. 2.250 km S of Chignik, Alaska · 3226 days ago · 49 km deep · 80 km away
  23. 1.947 km SSW of Ugashik, Alaska · 3226 days ago · 7 km deep · 67 km away
  24. 2.039 km SSW of Ugashik, Alaska · 3224 days ago · 5 km deep · 76 km away
  25. 2.041 km S of Ugashik, Alaska · 3223 days ago · 6 km deep · 74 km away
  26. 2.396 km E of Chignik, Alaska · 3221 days ago · 42 km deep · 64 km away
  27. 2.387 km SSE of Ugashik, Alaska · 3220 days ago · 75 km deep · 65 km away
  28. 2.052 km SSW of Ugashik, Alaska · 3219 days ago · 18 km deep · 63 km away
  29. 2.117 km WNW of Chignik Lake, Alaska · 3218 days ago · 9 km deep · 71 km away
  30. 2.134 km ESE of Chignik, Alaska · 3218 days ago · 47 km deep · 32 km away
  31. 2.816 km NNE of Chignik Lagoon, Alaska · 3217 days ago · 8 km deep · 35 km away
  32. 2.019 km ENE of Port Heiden, Alaska · 3211 days ago · 17 km deep · 62 km away
  33. 2.353 km SE of Ugashik, Alaska · 3210 days ago · 94 km deep · 95 km away

Before

  1. 3.048 km E of Port Heiden, Alaska · 3271 days ago · 9 km deep · 55 km away
  2. 2.567 km SE of Ugashik, Alaska · 3284 days ago · 37 km deep · 95 km away
  3. 1.7126 km E of Chignik, Alaska · 3288 days ago · 79 km deep · 93 km away
  4. 1.549 km SSW of Ugashik, Alaska · 3293 days ago · 2 km deep · 65 km away
  5. 1.762 km SSE of Ugashik, Alaska · 3293 days ago · 78 km deep · 85 km away
  6. 2.647 km SSW of Ugashik, Alaska · 3296 days ago · 10 km deep · 67 km away
  7. 2.536 km SE of Port Heiden, Alaska · 3297 days ago · 113 km deep · 29 km away
  8. 2.2116 km E of Chignik, Alaska · 3297 days ago · 50 km deep · 87 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak017dk1sqq7 (also filed as ak17105429). Read Fri, Oct 2, 2026, 4:52 PM UTC.