Alaska earthquakes

M1.7 earthquake 152 km W of Adak, Alaska

A magnitude 1.7 earthquake struck 152 km W of Adak, Alaska on Thu, Oct 1, 2026, 6:16 AM HADT (15:16 UTC), 8 km (5 mi) below the surface.

A larger quake followed: M2.1 148 km W of Adak, Alaska. This one was a foreshock.

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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
AV
Local time
UTC
2026-10-01 15:16:35 UTC
Depth
8.5 km (5.3 mi), shallow
Epicenter
51.772° N, 178.836° 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. 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 1.1 km horizontally, 1.1 km in depth
Magnitude uncertainty
±0.24
Depth from
From location
Station coverage gap
191°, poorly surrounded by stations
Stations used
5

Nearby

Within 100 km, magnitude 1.5 and up: 1 since this one and 116 in the 30 days before it.

After

  1. 2.1148 km W of Adak, Alaska · 22 hr ago · 12 km deep · 4 km away

Before

  1. 2.2127 km WSW of Adak, Alaska · 4 days ago · 29 km deep · 63 km away
  2. 2.7201 km WSW of Adak, Alaska · 4 days ago · 20 km deep · 84 km away
  3. 2.4222 km W of Adak, Alaska · 4 days ago · 85 km deep · 70 km away
  4. 3.073 km WSW of Adak, Alaska · 5 days ago · 28 km deep · 93 km away
  5. 1.697 km WSW of Adak, Alaska · 5 days ago · 41 km deep · 74 km away
  6. 2.588 km WSW of Adak, Alaska · 7 days ago · 77 km deep · 69 km away
  7. 3.5126 km WSW of Adak, Alaska · 7 days ago · 14 km deep · 64 km away
  8. 2.8148 km WSW of Adak, Alaska · 9 days ago · 52 km deep · 54 km away
  9. 2.4197 km W of Adak, Alaska · 10 days ago · 13 km deep · 45 km away
  10. 2.0114 km WSW of Adak, Alaska · 10 days ago · 32 km deep · 68 km away
  11. 2.0125 km WSW of Adak, Alaska · 10 days ago · 21 km deep · 70 km away
  12. 2.0142 km W of Adak, Alaska · 10 days ago · 18 km deep · 14 km away
  13. 2.4146 km WSW of Adak, Alaska · 10 days ago · 9 km deep · 58 km away
  14. 3.5148 km WSW of Adak, Alaska · 10 days ago · 0 km deep · 61 km away
  15. 3.0183 km WSW of Adak, Alaska · 10 days ago · 21 km deep · 75 km away
  16. 2.0126 km WSW of Adak, Alaska · 10 days ago · 13 km deep · 66 km away
  17. 2.0119 km SW of Adak, Alaska · 10 days ago · 23 km deep · 76 km away
  18. 2.0133 km WSW of Adak, Alaska · 11 days ago · 15 km deep · 26 km away
  19. 2.190 km SW of Adak, Alaska · 11 days ago · 33 km deep · 88 km away
  20. 2.8119 km WSW of Adak, Alaska · 11 days ago · 22 km deep · 64 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event av93067669. Read Fri, Oct 2, 2026, 1:55 PM UTC.