Alaska earthquakes

M4.2 earthquake 68 km S of Adak, Alaska

A magnitude 4.2 earthquake struck 68 km S of Adak, Alaska on Mon, Aug 26, 1996, 6:13 PM HADT (03:13 UTC), 33 km (21 mi) below the surface.

A larger quake followed: M5.1 33 km SE 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
4.2 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
1996-08-27 03:13:59 UTC
Depth
33.0 km (20.5 mi), shallow
Epicenter
51.257° N, 176.618° 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: 10 in the 60 days after this one and 6 in the 30 days before it.

After

  1. 4.064 km S of Adak, Alaska · 10995 days ago · 33 km deep · 6 km away
  2. 4.163 km S of Adak, Alaska · 10993 days ago · 33 km deep · 8 km away
  3. 4.279 km SSW of Adak, Alaska · 10991 days ago · 33 km deep · 23 km away
  4. 4.274 km SSE of Adak, Alaska · 10984 days ago · 33 km deep · 39 km away
  5. 5.133 km SE of Adak, Alaska · 10984 days ago · 60 km deep · 52 km away
  6. 4.3124 km SW of Adak, Alaska · 10973 days ago · 33 km deep · 83 km away
  7. 4.489 km SSE of Adak, Alaska · 10967 days ago · 33 km deep · 39 km away
  8. 4.887 km ESE of Adak, Alaska · 10963 days ago · 33 km deep · 99 km away
  9. 4.784 km SW of Adak, Alaska · 10940 days ago · 33 km deep · 69 km away
  10. 4.754 km SW of Adak, Alaska · 10939 days ago · 42 km deep · 51 km away

Before

  1. 4.552 km SSW of Adak, Alaska · 10997 days ago · 33 km deep · 27 km away
  2. 5.138 km SW of Adak, Alaska · 10998 days ago · 33 km deep · 45 km away
  3. 4.595 km SW of Adak, Alaska · 10998 days ago · 33 km deep · 81 km away
  4. 4.261 km SSW of Adak, Alaska · 11000 days ago · 33 km deep · 25 km away
  5. 4.364 km S of Adak, Alaska · 11006 days ago · 33 km deep · 4 km away
  6. 4.064 km SSE of Adak, Alaska · 11011 days ago · 33 km deep · 20 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0007p3q. Read Mon, Oct 5, 2026, 8:24 AM UTC.