Alaska earthquakes

M4.5 earthquake 240 km WSW of Adak, Alaska

A magnitude 4.5 earthquake struck 240 km WSW of Adak, Alaska on Sat, Oct 11, 2025, 1:51 AM GMT-12 (13:51 UTC), 35 km (22 mi) below the surface.

More in Alaska

Map

Where this earthquake was located, with the others nearby. Select one for its page.

Open the live map with earthquakes

The earthquake

Magnitude
4.5 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2025-10-11 13:51:18 UTC
Depth
35.0 km (21.7 mi), shallow
Epicenter
51.021° N, 179.806° W
Region
Alaska
Strongest shaking
I, not felt shaking
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
4.5mb, body-waveUSGS National Earthquake Information CenterPreferred · Reviewed · ±0.041 · 177 stations
4.3ML, local (Richter)Alaska Earthquake CenterPreliminary

Shaking

The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.

Strongest estimated
I, not felt shaking
Peak ground acceleration
0.0% of gravity
Peak ground velocity
0.0 cm/s
Map
Automatic
USGS ShakeMap: estimated shaking intensity around the epicenter
Estimated shaking intensity. Map: USGS ShakeMap.

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 4.7 km horizontally, 1.9 km in depth
Magnitude uncertainty
±0.04
Depth from
Operator assigned
Station coverage gap
176°
Stations used
59

Nearby

Within 100 km, magnitude 1.5 and up: 23 in the 60 days after this one and 11 in the 30 days before it.

After

  1. 3.4246 km WSW of Adak, Alaska · 356 days ago · 35 km deep · 11 km away
  2. 2.8221 km W of Adak, Alaska · 350 days ago · 10 km deep · 67 km away
  3. 2.8206 km W of Adak, Alaska · 350 days ago · 96 km deep · 77 km away
  4. 2.7149 km WSW of Adak, Alaska · 341 days ago · 10 km deep · 90 km away
  5. 3.7144 km WSW of Adak, Alaska · 323 days ago · 35 km deep · 96 km away
  6. 2.8194 km WSW of Adak, Alaska · 323 days ago · 35 km deep · 46 km away
  7. 2.9157 km WSW of Adak, Alaska · 319 days ago · 8 km deep · 83 km away
  8. 2.6231 km WSW of Adak, Alaska · 316 days ago · 14 km deep · 12 km away
  9. 2.6177 km W of Adak, Alaska · 314 days ago · 239 km deep · 97 km away
  10. 3.4246 km WSW of Adak, Alaska · 313 days ago · 47 km deep · 45 km away
  11. 2.9185 km WSW of Adak, Alaska · 311 days ago · 77 km deep · 61 km away
  12. 2.5256 km WSW of Adak, Alaska · 311 days ago · 67 km deep · 58 km away
  13. 2.7276 km W of Adak, Alaska · 310 days ago · 63 km deep · 76 km away
  14. 3.4213 km WSW of Adak, Alaska · 310 days ago · 18 km deep · 40 km away
  15. 2.9223 km WSW of Adak, Alaska · 309 days ago · 10 km deep · 21 km away
  16. 3.7259 km WSW of Adak, Alaska · 308 days ago · 54 km deep · 39 km away
  17. 4.2199 km WSW of Adak, Alaska · 303 days ago · 13 km deep · 49 km away
  18. 2.6154 km WSW of Adak, Alaska · 302 days ago · 59 km deep · 85 km away
  19. 2.7251 km WSW of Adak, Alaska · 299 days ago · 6 km deep · 11 km away
  20. 3.2269 km WSW of Adak, Alaska · 299 days ago · 52 km deep · 54 km away
  21. 2.6228 km WSW of Adak, Alaska · 297 days ago · 10 km deep · 11 km away
  22. 1.6263 km W of Adak, Alaska · 296 days ago · 3 km deep · 97 km away
  23. 2.4166 km W of Adak, Alaska · 296 days ago · 5 km deep · 93 km away

Before

  1. 4.2Rat Islands, Aleutian Islands, Alaska · 362 days ago · 18 km deep · 96 km away
  2. 4.2200 km W of Adak, Alaska · 363 days ago · 79 km deep · 65 km away
  3. 3.2236 km WSW of Adak, Alaska · 363 days ago · 11 km deep · 9 km away
  4. 2.6225 km W of Adak, Alaska · 371 days ago · 84 km deep · 75 km away
  5. 2.6171 km W of Adak, Alaska · 371 days ago · 88 km deep · 88 km away
  6. 2.0264 km W of Adak, Alaska · 371 days ago · 4 km deep · 100 km away
  7. 2.1164 km WSW of Adak, Alaska · 372 days ago · 16 km deep · 85 km away
  8. 1.5151 km W of Adak, Alaska · 372 days ago · 14 km deep · 98 km away
  9. 1.9159 km WSW of Adak, Alaska · 378 days ago · 30 km deep · 81 km away
  10. 3.2231 km WSW of Adak, Alaska · 381 days ago · 15 km deep · 51 km away
  11. 4.5261 km W of Adak, Alaska · 385 days ago · 73 km deep · 64 km away

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000rgkk (also filed as ak025d1wo5ye). Read Fri, Oct 2, 2026, 5:07 PM UTC.