Alaska earthquakes

M4.2 earthquake 145 km WSW of Adak, Alaska

A magnitude 4.2 earthquake struck 145 km WSW of Adak, Alaska on Sat, Oct 12, 1996, 6:27 AM HADT (15:27 UTC), 33 km (21 mi) below the surface.

A larger quake followed: M5.4 Andreanof Islands, Aleutian Islands, Alaska. This one was a foreshock.

More in Alaska

Map

Where this earthquake was located, with the others nearby. Select one for its page.

Open the live map with earthquakes

The earthquake

Magnitude
4.2 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
1996-10-12 15:27:41 UTC
Depth
33.0 km (20.5 mi), shallow
Epicenter
51.364° N, 178.565° 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: 16 in the 60 days after this one and 2 in the 30 days before it.

After

  1. 4.6200 km W of Adak, Alaska · 10946 days ago · 80 km deep · 77 km away
  2. 4.784 km SW of Adak, Alaska · 10940 days ago · 33 km deep · 68 km away
  3. 4.4134 km WSW of Adak, Alaska · 10938 days ago · 33 km deep · 11 km away
  4. 4.754 km SW of Adak, Alaska · 10938 days ago · 42 km deep · 97 km away
  5. 5.2142 km WSW of Adak, Alaska · 10937 days ago · 33 km deep · 7 km away
  6. 4.680 km SSW of Adak, Alaska · 10934 days ago · 33 km deep · 96 km away
  7. 5.0121 km WSW of Adak, Alaska · 10933 days ago · 33 km deep · 24 km away
  8. 4.5145 km WSW of Adak, Alaska · 10914 days ago · 33 km deep · 9 km away
  9. 3.9219 km W of Adak, Alaska · 10897 days ago · 33 km deep · 97 km away
  10. 5.4Andreanof Islands, Aleutian Islands, Alaska · 10890 days ago · 10 km deep · 86 km away
  11. 4.561 km W of Adak, Alaska · 10890 days ago · 10 km deep · 88 km away
  12. 4.862 km W of Adak, Alaska · 10890 days ago · 10 km deep · 87 km away
  13. 4.860 km W of Adak, Alaska · 10890 days ago · 10 km deep · 90 km away
  14. 3.656 km W of Adak, Alaska · 10890 days ago · 10 km deep · 91 km away
  15. 3.761 km WSW of Adak, Alaska · 10889 days ago · 10 km deep · 83 km away
  16. 3.459 km W of Adak, Alaska · 10889 days ago · 10 km deep · 94 km away

Before

  1. 4.3124 km SW of Adak, Alaska · 10972 days ago · 33 km deep · 71 km away
  2. 5.1131 km WSW of Adak, Alaska · 10978 days ago · 33 km deep · 22 km away

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0007ran. Read Sun, Oct 4, 2026, 5:39 PM UTC.