Alaska earthquakes

M1.5 earthquake 22 km N of Chignik, Alaska

A magnitude 1.5 earthquake struck 22 km N of Chignik, Alaska on Mon, Oct 27, 2025, 6:07 PM AKDT (02:07 UTC), 11 km (7 mi) below the surface.

A larger quake followed: M4.4 71 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
1.5 (ML, local (Richter)), micro
Magnitude from
AV
Local time
UTC
2025-10-28 02:07:40 UTC
Depth
10.9 km (6.8 mi), shallow
Epicenter
56.492° N, 158.382° 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 1.5 km horizontally, 3.1 km in depth
Magnitude uncertainty
±0.30
Depth from
From location
Station coverage gap
207°, poorly surrounded by stations
Stations used
9

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 18 in the 60 days after this one and 8 in the 30 days before it.

After

  1. 1.719 km WNW of Chignik Lake, Alaska · 339 days ago · 127 km deep · 42 km away
  2. 2.46 km NNE of Chignik Lagoon, Alaska · 337 days ago · 94 km deep · 16 km away
  3. 2.127 km SSE of Chignik, Alaska · 324 days ago · 54 km deep · 48 km away
  4. 2.561 km SSW of Ugashik, Alaska · 314 days ago · 3 km deep · 68 km away
  5. 2.382 km SE of Chignik, Alaska · 312 days ago · 7 km deep · 99 km away
  6. 2.583 km ENE of Chignik, Alaska · 306 days ago · 75 km deep · 74 km away
  7. 2.129 km N of Ivanof Bay, Alaska · 304 days ago · 24 km deep · 76 km away
  8. 4.471 km ESE of Chignik, Alaska · 303 days ago · 9 km deep · 81 km away · felt by 2
  9. 3.364 km E of Chignik, Alaska · 303 days ago · 32 km deep · 67 km away
  10. 2.227 km ENE of Chignik, Alaska · 302 days ago · 72 km deep · 25 km away
  11. 2.430 km N of Chignik Lagoon, Alaska · 302 days ago · 112 km deep · 13 km away
  12. 2.346 km SSW of Ugashik, Alaska · 298 days ago · 5 km deep · 84 km away
  13. 2.647 km S of Ugashik, Alaska · 298 days ago · 6 km deep · 84 km away
  14. 2.431 km SSE of Chignik Lake, Alaska · 294 days ago · 70 km deep · 56 km away
  15. 3.545 km SSW of Ugashik, Alaska · 290 days ago · 3 km deep · 84 km away
  16. 2.543 km SSW of Ugashik, Alaska · 289 days ago · 1 km deep · 86 km away
  17. 2.778 km E of Chignik, Alaska · 288 days ago · 43 km deep · 76 km away
  18. 2.667 km E of Chignik, Alaska · 283 days ago · 58 km deep · 68 km away

Before

  1. 2.456 km SE of Perryville, Alaska · 345 days ago · 43 km deep · 98 km away
  2. 1.714 km S of Chignik, Alaska · 349 days ago · 85 km deep · 36 km away
  3. 2.515 km SSE of Perryville, Alaska · 349 days ago · 62 km deep · 89 km away
  4. 2.653 km ESE of Chignik, Alaska · 358 days ago · 70 km deep · 62 km away
  5. 1.930 km ESE of Perryville, Alaska · 366 days ago · 49 km deep · 73 km away
  6. 2.544 km S of Ugashik, Alaska · 367 days ago · 3 km deep · 88 km away
  7. 1.629 km NNE of Chignik, Alaska · 367 days ago · 85 km deep · 10 km away
  8. 2.652 km SSW of Pilot Point, Alaska · 369 days ago · 130 km deep · 76 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event av93850926. Read Fri, Oct 2, 2026, 3:12 PM UTC.