Alaska earthquakes

M4.7 earthquake 133 km WSW of Adak, Alaska

A magnitude 4.7 earthquake struck 133 km WSW of Adak, Alaska on Sat, Jul 20, 1996, 9:02 PM HADT (06:02 UTC), 33 km (21 mi) below the surface.

A larger quake followed: M6.0 Andreanof Islands, Aleutian Islands, 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
4.7 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
1996-07-21 06:02:55 UTC
Depth
33.0 km (20.5 mi), shallow
Epicenter
51.278° N, 178.299° 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 1.7 and up: 22 in the 60 days after this one and 26 in the 30 days before it.

After

  1. 3.8182 km W of Adak, Alaska · 11029 days ago · 33 km deep · 86 km away
  2. 4.291 km W of Adak, Alaska · 11029 days ago · 33 km deep · 65 km away
  3. 3.7206 km WSW of Adak, Alaska · 11029 days ago · 33 km deep · 85 km away
  4. 4.5121 km SW of Adak, Alaska · 11027 days ago · 33 km deep · 18 km away
  5. 5.138 km WSW of Adak, Alaska · 11027 days ago · 55 km deep · 94 km away
  6. 4.5197 km WSW of Adak, Alaska · 11025 days ago · 33 km deep · 66 km away
  7. 3.7145 km WSW of Adak, Alaska · 11011 days ago · 33 km deep · 32 km away
  8. 4.0145 km WSW of Adak, Alaska · 11011 days ago · 33 km deep · 40 km away
  9. 4.1134 km SW of Adak, Alaska · 11010 days ago · 33 km deep · 17 km away
  10. 4.2138 km WSW of Adak, Alaska · 11008 days ago · 33 km deep · 6 km away
  11. 6.0Andreanof Islands, Aleutian Islands, Alaska · 11001 days ago · 33 km deep · 20 km away
  12. 5.3129 km WSW of Adak, Alaska · 11000 days ago · 33 km deep · 25 km away
  13. 5.2126 km WSW of Adak, Alaska · 10999 days ago · 33 km deep · 10 km away
  14. 4.261 km SSW of Adak, Alaska · 10998 days ago · 33 km deep · 95 km away
  15. 4.595 km SW of Adak, Alaska · 10995 days ago · 33 km deep · 38 km away
  16. 5.138 km SW of Adak, Alaska · 10995 days ago · 33 km deep · 99 km away
  17. 4.552 km SSW of Adak, Alaska · 10994 days ago · 33 km deep · 99 km away
  18. 4.4127 km SW of Adak, Alaska · 10991 days ago · 33 km deep · 15 km away
  19. 4.3162 km WSW of Adak, Alaska · 10990 days ago · 33 km deep · 35 km away
  20. 5.5117 km WSW of Adak, Alaska · 10989 days ago · 44 km deep · 25 km away
  21. 4.279 km SSW of Adak, Alaska · 10988 days ago · 33 km deep · 96 km away
  22. 5.1131 km WSW of Adak, Alaska · 10976 days ago · 33 km deep · 32 km away

Before

  1. 5.181 km WSW of Adak, Alaska · 11032 days ago · 33 km deep · 52 km away
  2. 4.496 km SSW of Adak, Alaska · 11035 days ago · 33 km deep · 77 km away
  3. 4.074 km SW of Adak, Alaska · 11035 days ago · 33 km deep · 60 km away
  4. 4.3171 km WSW of Adak, Alaska · 11036 days ago · 33 km deep · 40 km away
  5. 5.2101 km SW of Adak, Alaska · 11038 days ago · 33 km deep · 32 km away
  6. 4.089 km SW of Adak, Alaska · 11039 days ago · 33 km deep · 45 km away
  7. 4.290 km WSW of Adak, Alaska · 11039 days ago · 33 km deep · 43 km away
  8. 4.762 km WSW of Adak, Alaska · 11041 days ago · 33 km deep · 71 km away
  9. 4.281 km SSW of Adak, Alaska · 11042 days ago · 33 km deep · 88 km away
  10. 3.690 km SSW of Adak, Alaska · 11042 days ago · 33 km deep · 70 km away
  11. 3.9117 km SW of Adak, Alaska · 11043 days ago · 33 km deep · 50 km away
  12. 4.0202 km SW of Adak, Alaska · 11044 days ago · 33 km deep · 71 km away
  13. 4.096 km SW of Adak, Alaska · 11044 days ago · 33 km deep · 59 km away
  14. 4.549 km SSW of Adak, Alaska · 11046 days ago · 33 km deep · 96 km away
  15. 4.0101 km SSW of Adak, Alaska · 11049 days ago · 33 km deep · 68 km away
  16. 4.0105 km SW of Adak, Alaska · 11051 days ago · 33 km deep · 39 km away
  17. 5.047 km W of Adak, Alaska · 11052 days ago · 33 km deep · 93 km away
  18. 4.652 km WSW of Adak, Alaska · 11053 days ago · 33 km deep · 80 km away
  19. 4.644 km SSW of Adak, Alaska · 11054 days ago · 33 km deep · 98 km away
  20. 3.9139 km WSW of Adak, Alaska · 11055 days ago · 33 km deep · 30 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0007mbt. Read Fri, Oct 2, 2026, 2:13 PM UTC.