Alaska earthquakes

M4.7 earthquake 172 km WSW of Adak, Alaska

A magnitude 4.7 earthquake struck 172 km WSW of Adak, Alaska on Wed, Dec 3, 1997, 10:32 PM HAST (08:32 UTC), 33 km (21 mi) below the surface.

A larger quake followed: M5.0 190 km WSW 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
4.7 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
1997-12-04 08:32:58 UTC
Depth
33.0 km (20.5 mi), shallow
Epicenter
51.430° N, 179.023° 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: 9 in the 60 days after this one and 10 in the 30 days before it.

After

  1. 5.0190 km WSW of Adak, Alaska · 10525 days ago · 33 km deep · 20 km away
  2. 4.3203 km WSW of Adak, Alaska · 10517 days ago · 33 km deep · 31 km away
  3. 4.4180 km W of Adak, Alaska · 10516 days ago · 33 km deep · 50 km away
  4. 3.2137 km WSW of Adak, Alaska · 10514 days ago · 33 km deep · 35 km away
  5. 3.1260 km W of Adak, Alaska · 10510 days ago · 33 km deep · 97 km away
  6. 4.0261 km W of Adak, Alaska · 10497 days ago · 33 km deep · 98 km away
  7. 4.5216 km WSW of Adak, Alaska · 10487 days ago · 33 km deep · 46 km away
  8. 4.9123 km WSW of Adak, Alaska · 10482 days ago · 33 km deep · 62 km away
  9. 4.888 km WSW of Adak, Alaska · 10476 days ago · 42 km deep · 88 km away

Before

  1. 4.3152 km SW of Adak, Alaska · 10534 days ago · 33 km deep · 58 km away
  2. 3.9190 km W of Adak, Alaska · 10539 days ago · 33 km deep · 30 km away
  3. 4.2137 km SW of Adak, Alaska · 10542 days ago · 33 km deep · 57 km away
  4. 4.5193 km W of Adak, Alaska · 10542 days ago · 131 km deep · 74 km away
  5. 4.7194 km WSW of Adak, Alaska · 10542 days ago · 33 km deep · 22 km away
  6. 4.5127 km WSW of Adak, Alaska · 10542 days ago · 33 km deep · 62 km away
  7. 4.990 km WSW of Adak, Alaska · 10552 days ago · 33 km deep · 90 km away
  8. 4.7117 km WSW of Adak, Alaska · 10556 days ago · 33 km deep · 58 km away
  9. 4.4146 km WSW of Adak, Alaska · 10557 days ago · 33 km deep · 27 km away
  10. 4.1156 km WSW of Adak, Alaska · 10559 days ago · 33 km deep · 17 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0008bqy. Read Sun, Oct 4, 2026, 2:45 PM UTC.