Alaska earthquakes

M4.2 earthquake 79 km SSW of Adak, Alaska

A magnitude 4.2 earthquake struck 79 km SSW of Adak, Alaska on Sun, Sep 1, 1996, 7:09 AM HADT (16:09 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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The earthquake

Magnitude
4.2 (mb), light
Local time
UTC
1996-09-01 16:09:53 UTC
Depth
33.0 km (20.5 mi), shallow
Epicenter
51.182° N, 176.923° 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: 8 in the 60 days after this one and 13 in the 30 days before it.

After

  1. 4.274 km SSE of Adak, Alaska · 10971 days ago · 33 km deep · 61 km away
  2. 5.133 km SE of Adak, Alaska · 10971 days ago · 60 km deep · 71 km away
  3. 4.3124 km SW of Adak, Alaska · 10960 days ago · 33 km deep · 60 km away
  4. 4.489 km SSE of Adak, Alaska · 10955 days ago · 33 km deep · 59 km away
  5. 4.784 km SW of Adak, Alaska · 10928 days ago · 33 km deep · 52 km away
  6. 4.754 km SW of Adak, Alaska · 10926 days ago · 42 km deep · 43 km away
  7. 4.680 km SSW of Adak, Alaska · 10922 days ago · 33 km deep · 20 km away
  8. 5.0121 km WSW of Adak, Alaska · 10922 days ago · 33 km deep · 96 km away

Before

  1. 5.5117 km WSW of Adak, Alaska · 10979 days ago · 44 km deep · 96 km away
  2. 4.163 km S of Adak, Alaska · 10980 days ago · 33 km deep · 20 km away
  3. 4.4127 km SW of Adak, Alaska · 10981 days ago · 33 km deep · 84 km away
  4. 4.064 km S of Adak, Alaska · 10983 days ago · 33 km deep · 21 km away
  5. 4.268 km S of Adak, Alaska · 10984 days ago · 33 km deep · 23 km away
  6. 4.552 km SSW of Adak, Alaska · 10984 days ago · 33 km deep · 27 km away
  7. 5.138 km SW of Adak, Alaska · 10986 days ago · 33 km deep · 46 km away
  8. 4.595 km SW of Adak, Alaska · 10986 days ago · 33 km deep · 63 km away
  9. 4.261 km SSW of Adak, Alaska · 10988 days ago · 33 km deep · 19 km away
  10. 5.2126 km WSW of Adak, Alaska · 10990 days ago · 33 km deep · 96 km away
  11. 4.364 km S of Adak, Alaska · 10994 days ago · 33 km deep · 25 km away
  12. 4.064 km SSE of Adak, Alaska · 10999 days ago · 33 km deep · 43 km away
  13. 4.1134 km SW of Adak, Alaska · 11001 days ago · 33 km deep · 88 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0007pak. Read Tue, Sep 22, 2026, 9:29 PM UTC.