Alaska earthquakes

M4.2 earthquake 74 km SSE of Adak, Alaska

A magnitude 4.2 earthquake struck 74 km SSE of Adak, Alaska on Sun, Sep 8, 1996, 1:56 AM HADT (10:56 UTC), 33 km (21 mi) below the surface.

A larger quake followed: M5.2 85 km E of Adak, Alaska. This one was a foreshock.

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The earthquake

Magnitude
4.2 (mb), light
Local time
UTC
1996-09-08 10:56:02 UTC
Depth
33.0 km (20.5 mi), shallow
Epicenter
51.305° N, 176.066° 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 10 in the 30 days before it.

After

  1. 5.133 km SE of Adak, Alaska · 10978 days ago · 60 km deep · 44 km away
  2. 4.694 km SW of Atka, Alaska · 10968 days ago · 51 km deep · 77 km away
  3. 4.1100 km SSW of Atka, Alaska · 10966 days ago · 33 km deep · 86 km away
  4. 4.489 km SSE of Adak, Alaska · 10962 days ago · 33 km deep · 18 km away
  5. 4.887 km ESE of Adak, Alaska · 10958 days ago · 33 km deep · 65 km away
  6. 4.754 km SW of Adak, Alaska · 10933 days ago · 42 km deep · 82 km away
  7. 4.680 km SSW of Adak, Alaska · 10929 days ago · 33 km deep · 79 km away
  8. 5.285 km E of Adak, Alaska · 10928 days ago · 33 km deep · 73 km away
  9. 4.5108 km SE of Adak, Alaska · 10926 days ago · 33 km deep · 51 km away
  10. 4.661 km SSW of Adak, Alaska · 10920 days ago · 33 km deep · 57 km away

Before

  1. 4.279 km SSW of Adak, Alaska · 10985 days ago · 33 km deep · 61 km away
  2. 4.163 km S of Adak, Alaska · 10987 days ago · 33 km deep · 44 km away
  3. 4.064 km S of Adak, Alaska · 10990 days ago · 33 km deep · 43 km away
  4. 4.268 km S of Adak, Alaska · 10991 days ago · 33 km deep · 39 km away
  5. 4.552 km SSW of Adak, Alaska · 10991 days ago · 33 km deep · 59 km away
  6. 5.138 km SW of Adak, Alaska · 10993 days ago · 33 km deep · 70 km away
  7. 4.783 km SW of Atka, Alaska · 10993 days ago · 33 km deep · 79 km away
  8. 4.261 km SSW of Adak, Alaska · 10995 days ago · 33 km deep · 61 km away
  9. 4.364 km S of Adak, Alaska · 11001 days ago · 33 km deep · 38 km away
  10. 4.064 km SSE of Adak, Alaska · 11006 days ago · 33 km deep · 20 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0007pp1 (also filed as ak996bkxpssb). Read Tue, Sep 29, 2026, 9:33 PM UTC.