Alaska earthquakes

M1.7 earthquake 142 km ESE of Chignik, Alaska

A magnitude 1.7 earthquake struck 142 km ESE of Chignik, Alaska on Sat, Aug 23, 2025, 7:40 PM AKDT (03:40 UTC), 20 km (12 mi) below the surface.

A larger quake followed: M4.6 114 km E 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
1.7 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2025-08-24 03:40:41 UTC
Depth
19.8 km (12.3 mi), shallow
Epicenter
55.780° N, 156.319° 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
16

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 21 in the 60 days after this one and 14 in the 30 days before it.

After

  1. 1.8159 km SSW of Akhiok, Alaska · 403 days ago · 1 km deep · 49 km away
  2. 2.0106 km SW of Akhiok, Alaska · 398 days ago · 29 km deep · 79 km away
  3. 2.8129 km ESE of Chignik, Alaska · 395 days ago · 44 km deep · 22 km away
  4. 2.0115 km ENE of Chignik, Alaska · 395 days ago · 46 km deep · 86 km away
  5. 2.1135 km SW of Akhiok, Alaska · 395 days ago · 5 km deep · 56 km away
  6. 2.4132 km ESE of Chignik, Alaska · 394 days ago · 18 km deep · 20 km away
  7. 2.7106 km E of Chignik, Alaska · 392 days ago · 18 km deep · 75 km away
  8. 2.2111 km ESE of Chignik, Alaska · 389 days ago · 45 km deep · 31 km away
  9. 2.7122 km SW of Akhiok, Alaska · 386 days ago · 26 km deep · 65 km away
  10. 2.595 km E of Chignik, Alaska · 379 days ago · 17 km deep · 65 km away
  11. 4.6114 km E of Chignik, Alaska · 373 days ago · 45 km deep · 66 km away · felt by 2
  12. 3.1128 km E of Chignik, Alaska · 373 days ago · 50 km deep · 72 km away
  13. 2.6129 km E of Chignik, Alaska · 373 days ago · 50 km deep · 74 km away
  14. 2.7127 km E of Chignik, Alaska · 373 days ago · 50 km deep · 72 km away
  15. 2.3116 km E of Chignik, Alaska · 371 days ago · 15 km deep · 65 km away
  16. 3.3114 km E of Chignik, Alaska · 371 days ago · 10 km deep · 72 km away
  17. 2.992 km ESE of Chignik, Alaska · 365 days ago · 76 km deep · 50 km away
  18. 2.3106 km E of Chignik, Alaska · 364 days ago · 54 km deep · 74 km away
  19. 3.1112 km E of Chignik, Alaska · 359 days ago · 37 km deep · 65 km away
  20. 2.653 km ESE of Chignik, Alaska · 358 days ago · 70 km deep · 89 km away
  21. 2.9112 km E of Chignik, Alaska · 349 days ago · 35 km deep · 65 km away

Before

  1. 2.960 km SE of Chignik, Alaska · 404 days ago · 38 km deep · 83 km away
  2. 1.8172 km SW of Akhiok, Alaska · 406 days ago · 26 km deep · 32 km away
  3. 1.7103 km E of Chignik, Alaska · 407 days ago · 46 km deep · 52 km away
  4. 1.667 km SSE of Chignik, Alaska · 409 days ago · 26 km deep · 98 km away
  5. 2.379 km ENE of Chignik, Alaska · 410 days ago · 67 km deep · 94 km away
  6. 1.897 km ENE of Chignik, Alaska · 415 days ago · 46 km deep · 93 km away
  7. 2.0129 km SSE of Ugashik, Alaska · 417 days ago · 51 km deep · 86 km away
  8. 2.2120 km WSW of Akhiok, Alaska · 417 days ago · 62 km deep · 88 km away
  9. 2.373 km ESE of Chignik, Alaska · 422 days ago · 41 km deep · 68 km away
  10. 2.1106 km E of Chignik, Alaska · 423 days ago · 6 km deep · 59 km away
  11. 2.185 km ENE of Chignik, Alaska · 423 days ago · 62 km deep · 93 km away
  12. 2.2114 km E of Chignik, Alaska · 424 days ago · 42 km deep · 80 km away
  13. 1.6128 km WSW of Akhiok, Alaska · 427 days ago · 8 km deep · 80 km away
  14. 2.2113 km WSW of Akhiok, Alaska · 429 days ago · 70 km deep · 80 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak025aucuv7n. Read Fri, Oct 2, 2026, 1:49 AM UTC.