Alaska earthquakes

M4.7 earthquake 117 km WSW of Adak, Alaska

A magnitude 4.7 earthquake struck 117 km WSW of Adak, Alaska on Sun, Nov 9, 1997, 9:00 AM HAST (19:00 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
1997-11-09 19:00:20 UTC
Depth
33.0 km (20.5 mi), shallow
Epicenter
51.447° N, 178.189° 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: 11 in the 60 days after this one and 8 in the 30 days before it.

After

  1. 4.990 km WSW of Adak, Alaska · 10550 days ago · 33 km deep · 32 km away
  2. 4.5127 km WSW of Adak, Alaska · 10540 days ago · 33 km deep · 22 km away
  3. 4.7194 km WSW of Adak, Alaska · 10539 days ago · 33 km deep · 79 km away
  4. 4.2137 km SW of Adak, Alaska · 10539 days ago · 33 km deep · 29 km away
  5. 3.9190 km W of Adak, Alaska · 10536 days ago · 33 km deep · 83 km away
  6. 4.3152 km SW of Adak, Alaska · 10531 days ago · 33 km deep · 44 km away
  7. 4.7172 km WSW of Adak, Alaska · 10528 days ago · 33 km deep · 58 km away
  8. 5.0190 km WSW of Adak, Alaska · 10522 days ago · 33 km deep · 74 km away
  9. 4.3203 km WSW of Adak, Alaska · 10514 days ago · 33 km deep · 89 km away
  10. 4.4180 km W of Adak, Alaska · 10513 days ago · 33 km deep · 86 km away
  11. 3.2137 km WSW of Adak, Alaska · 10511 days ago · 33 km deep · 27 km away

Before

  1. 4.4146 km WSW of Adak, Alaska · 10554 days ago · 33 km deep · 31 km away
  2. 4.1156 km WSW of Adak, Alaska · 10557 days ago · 33 km deep · 41 km away
  3. 4.483 km SSW of Adak, Alaska · 10562 days ago · 33 km deep · 72 km away
  4. 4.1106 km W of Adak, Alaska · 10574 days ago · 110 km deep · 65 km away
  5. 4.7107 km SW of Adak, Alaska · 10577 days ago · 33 km deep · 29 km away
  6. 6.499 km WSW of Adak, Alaska · 10579 days ago · 22 km deep · 22 km away
  7. 4.6136 km WSW of Adak, Alaska · 10581 days ago · 33 km deep · 19 km away
  8. 4.587 km SW of Adak, Alaska · 10583 days ago · 33 km deep · 36 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0008ac9. Read Thu, Oct 1, 2026, 6:29 PM UTC.