Alaska earthquakes

M4.1 earthquake 145 km WSW of Adak, Alaska

A magnitude 4.1 earthquake struck 145 km WSW of Adak, Alaska on Sat, Jul 26, 1997, 1:22 AM HADT (10:22 UTC), 33 km (21 mi) below the surface.

A larger quake followed: M5.6 212 km WSW 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
4.1 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
1997-07-26 10:22:36 UTC
Depth
33.0 km (20.5 mi), shallow
Epicenter
51.278° N, 178.496° 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.

Depth from
OPERATOR_ASSIGNED

Nearby

Within 100 km, magnitude 1.5 and up: 9 in the 60 days after this one and 11 in the 30 days before it.

After

  1. 3.9141 km WSW of Adak, Alaska · 10628 days ago · 33 km deep · 4 km away
  2. 4.492 km SW of Adak, Alaska · 10628 days ago · 33 km deep · 59 km away
  3. 4.1134 km WSW of Adak, Alaska · 10624 days ago · 33 km deep · 19 km away
  4. 4.582 km SW of Adak, Alaska · 10622 days ago · 33 km deep · 64 km away
  5. 4.7139 km SW of Adak, Alaska · 10622 days ago · 33 km deep · 18 km away
  6. 4.3224 km WSW of Adak, Alaska · 10619 days ago · 60 km deep · 86 km away
  7. 4.9Andreanof Islands, Aleutian Islands, Alaska · 10609 days ago · 53 km deep · 28 km away
  8. 4.9216 km WSW of Adak, Alaska · 10605 days ago · 33 km deep · 74 km away
  9. 5.6212 km WSW of Adak, Alaska · 10605 days ago · 33 km deep · 70 km away

Before

  1. 4.8185 km WSW of Adak, Alaska · 10660 days ago · 33 km deep · 48 km away
  2. 4.1175 km WSW of Adak, Alaska · 10667 days ago · 33 km deep · 30 km away
  3. 4.3167 km W of Adak, Alaska · 10669 days ago · 33 km deep · 74 km away
  4. 4.1152 km WSW of Adak, Alaska · 10669 days ago · 33 km deep · 12 km away
  5. 4.7189 km WSW of Adak, Alaska · 10675 days ago · 33 km deep · 51 km away
  6. 3.4187 km WSW of Adak, Alaska · 10676 days ago · 33 km deep · 46 km away
  7. 4.5140 km WSW of Adak, Alaska · 10676 days ago · 33 km deep · 16 km away
  8. 5.9146 km WSW of Adak, Alaska · 10677 days ago · 33 km deep · 12 km away
  9. 5.1144 km WSW of Adak, Alaska · 10681 days ago · 33 km deep · 17 km away
  10. 4.8198 km WSW of Adak, Alaska · 10682 days ago · 33 km deep · 64 km away
  11. 4.1195 km WSW of Adak, Alaska · 10687 days ago · 33 km deep · 52 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp00085cj. Read Thu, Oct 1, 2026, 11:22 AM UTC.