Alaska earthquakes

M4.4 earthquake 259 km WSW of Adak, Alaska

A magnitude 4.4 earthquake struck 259 km WSW of Adak, Alaska on Sun, Sep 27, 2026, 10:30 PM GMT+12 (10:30 UTC), 18 km (11 mi) below the surface.

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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
4.4 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2026-09-27 10:30:26 UTC
Depth
18.0 km (11.2 mi), shallow
Epicenter
51.231° N, 179.763° E
Region
Alaska
Strongest shaking
III, weak shaking
Tsunami flag
No
Status
Reviewed by a seismologist

Shaking

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

Strongest estimated
III, weak shaking
Peak ground acceleration
1.3% of gravity
Peak ground velocity
0.4 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. If you felt it, tell the USGS: every report sharpens the shaking map.

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 7.4 km horizontally, 5.2 km in depth
Magnitude uncertainty
±0.04
Depth from
From location
Station coverage gap
177°
Stations used
71

Nearby

Within 100 km, magnitude 1.5 and up: 7 since this one and 75 in the 30 days before it.

After

  1. 2.4222 km W of Adak, Alaska · 4 days ago · 85 km deep · 53 km away
  2. 2.0Rat Islands, Aleutian Islands, Alaska · 4 days ago · 186 km deep · 88 km away
  3. 2.7201 km WSW of Adak, Alaska · 4 days ago · 20 km deep · 74 km away
  4. 2.6285 km WSW of Adak, Alaska · 4 days ago · 17 km deep · 34 km away
  5. 2.5292 km WSW of Adak, Alaska · 3 days ago · 30 km deep · 33 km away
  6. 3.0Rat Islands, Aleutian Islands, Alaska · 3 days ago · 35 km deep · 74 km away
  7. 4.2286 km W of Adak, Alaska · 32 hr ago · 119 km deep · 82 km away

Before

  1. 4.6Rat Islands, Aleutian Islands, Alaska · 5 days ago · 47 km deep · 48 km away
  2. 4.4263 km WSW of Adak, Alaska · 5 days ago · 18 km deep · 8 km away
  3. 1.6263 km W of Adak, Alaska · 7 days ago · 7 km deep · 77 km away
  4. 2.7271 km WSW of Adak, Alaska · 8 days ago · 21 km deep · 29 km away
  5. 2.7Rat Islands, Aleutian Islands, Alaska · 9 days ago · 35 km deep · 70 km away
  6. 2.9Rat Islands, Aleutian Islands, Alaska · 9 days ago · 25 km deep · 62 km away
  7. 2.4197 km W of Adak, Alaska · 9 days ago · 13 km deep · 73 km away
  8. 2.4Rat Islands, Aleutian Islands, Alaska · 10 days ago · 30 km deep · 75 km away
  9. 2.4263 km W of Adak, Alaska · 10 days ago · 65 km deep · 32 km away
  10. 3.0183 km WSW of Adak, Alaska · 10 days ago · 21 km deep · 90 km away
  11. 2.3258 km W of Adak, Alaska · 10 days ago · 172 km deep · 85 km away
  12. 2.3Rat Islands, Aleutian Islands, Alaska · 11 days ago · 65 km deep · 65 km away
  13. 2.7262 km WSW of Adak, Alaska · 12 days ago · 18 km deep · 15 km away
  14. 2.7Rat Islands, Aleutian Islands, Alaska · 12 days ago · 62 km deep · 90 km away
  15. 3.0251 km WSW of Adak, Alaska · 12 days ago · 9 km deep · 39 km away
  16. 2.7249 km WSW of Adak, Alaska · 13 days ago · 10 km deep · 43 km away
  17. 2.6257 km W of Adak, Alaska · 13 days ago · 98 km deep · 64 km away
  18. 3.3Rat Islands, Aleutian Islands, Alaska · 14 days ago · 53 km deep · 92 km away
  19. 2.4242 km W of Adak, Alaska · 15 days ago · 100 km deep · 58 km away
  20. 2.8242 km SW of Adak, Alaska · 15 days ago · 5 km deep · 88 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000txye (also filed as aka2026tdqxmf). Read Fri, Oct 2, 2026, 3:23 AM UTC.