Alaska earthquakes

M4.3 earthquake 162 km WSW of Adak, Alaska

A magnitude 4.3 earthquake struck 162 km WSW of Adak, Alaska on Thu, Aug 29, 1996, 8:30 PM HADT (05:30 UTC), 33 km (21 mi) below the surface.

A larger quake followed: M5.5 117 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
4.3 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
1996-08-30 05:30:44 UTC
Depth
33.0 km (20.5 mi), shallow
Epicenter
51.314° N, 178.800° 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 9 in the 30 days before it.

After

  1. 5.5117 km WSW of Adak, Alaska · 10989 days ago · 44 km deep · 45 km away
  2. 5.1131 km WSW of Adak, Alaska · 10976 days ago · 33 km deep · 35 km away
  3. 4.3124 km SW of Adak, Alaska · 10970 days ago · 33 km deep · 82 km away
  4. 4.2145 km WSW of Adak, Alaska · 10947 days ago · 33 km deep · 17 km away
  5. 4.6200 km W of Adak, Alaska · 10944 days ago · 80 km deep · 67 km away
  6. 4.784 km SW of Adak, Alaska · 10937 days ago · 33 km deep · 85 km away
  7. 4.4134 km WSW of Adak, Alaska · 10936 days ago · 33 km deep · 28 km away
  8. 5.2142 km WSW of Adak, Alaska · 10935 days ago · 33 km deep · 22 km away
  9. 5.0121 km WSW of Adak, Alaska · 10931 days ago · 33 km deep · 41 km away

Before

  1. 4.4127 km SW of Adak, Alaska · 10991 days ago · 33 km deep · 49 km away
  2. 4.595 km SW of Adak, Alaska · 10995 days ago · 33 km deep · 72 km away
  3. 5.2126 km WSW of Adak, Alaska · 10999 days ago · 33 km deep · 37 km away
  4. 5.3129 km WSW of Adak, Alaska · 11000 days ago · 33 km deep · 34 km away
  5. 6.0Andreanof Islands, Aleutian Islands, Alaska · 11001 days ago · 33 km deep · 34 km away
  6. 4.2138 km WSW of Adak, Alaska · 11008 days ago · 33 km deep · 32 km away
  7. 4.1134 km SW of Adak, Alaska · 11010 days ago · 33 km deep · 47 km away
  8. 4.0145 km WSW of Adak, Alaska · 11011 days ago · 33 km deep · 28 km away
  9. 3.7145 km WSW of Adak, Alaska · 11011 days ago · 33 km deep · 21 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0007p7s. Read Fri, Oct 2, 2026, 12:24 PM UTC.