Alaska earthquakes

M4.5 earthquake 278 km WSW of Adak, Alaska

A magnitude 4.5 earthquake struck 278 km WSW of Adak, Alaska on Thu, Mar 27, 1997, 11:16 PM GMT+12 (11:16 UTC), 33 km (21 mi) below the surface.

A larger quake followed: M4.9 184 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
4.5 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
1997-03-27 11:16:38 UTC
Depth
33.0 km (20.5 mi), shallow
Epicenter
51.127° N, 179.540° E
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: 22 in the 60 days after this one and 24 in the 30 days before it.

After

  1. 4.0294 km WSW of Adak, Alaska · 10780 days ago · 33 km deep · 19 km away
  2. 4.0296 km WSW of Adak, Alaska · 10780 days ago · 33 km deep · 27 km away
  3. 4.5277 km WSW of Adak, Alaska · 10780 days ago · 33 km deep · 3 km away
  4. 4.5283 km WSW of Adak, Alaska · 10780 days ago · 33 km deep · 8 km away
  5. 4.3276 km WSW of Adak, Alaska · 10780 days ago · 33 km deep · 4 km away
  6. 3.9277 km WSW of Adak, Alaska · 10780 days ago · 33 km deep · 10 km away
  7. 4.3284 km WSW of Adak, Alaska · 10780 days ago · 33 km deep · 21 km away
  8. 4.1274 km WSW of Adak, Alaska · 10780 days ago · 33 km deep · 8 km away
  9. 3.1293 km WSW of Adak, Alaska · 10780 days ago · 33 km deep · 38 km away
  10. 4.7281 km WSW of Adak, Alaska · 10779 days ago · 33 km deep · 14 km away
  11. 3.8Rat Islands, Aleutian Islands, Alaska · 10779 days ago · 33 km deep · 41 km away
  12. 4.0269 km WSW of Adak, Alaska · 10779 days ago · 33 km deep · 13 km away
  13. 4.0297 km WSW of Adak, Alaska · 10769 days ago · 33 km deep · 26 km away
  14. 4.6252 km W of Adak, Alaska · 10760 days ago · 68 km deep · 57 km away
  15. 4.6Rat Islands, Aleutian Islands, Alaska · 10758 days ago · 33 km deep · 43 km away
  16. 3.9Rat Islands, Aleutian Islands, Alaska · 10755 days ago · 33 km deep · 41 km away
  17. 3.8193 km WSW of Adak, Alaska · 10746 days ago · 33 km deep · 85 km away
  18. 4.4194 km WSW of Adak, Alaska · 10745 days ago · 33 km deep · 86 km away
  19. 4.9184 km WSW of Adak, Alaska · 10745 days ago · 33 km deep · 95 km away
  20. 4.4243 km WSW of Adak, Alaska · 10745 days ago · 33 km deep · 37 km away
  21. 4.2196 km WSW of Adak, Alaska · 10745 days ago · 33 km deep · 84 km away
  22. 3.4Rat Islands, Aleutian Islands, Alaska · 10741 days ago · 33 km deep · 65 km away

Before

  1. 4.3288 km WSW of Adak, Alaska · 10780 days ago · 33 km deep · 10 km away
  2. 4.2285 km WSW of Adak, Alaska · 10780 days ago · 33 km deep · 10 km away
  3. 5.6288 km WSW of Adak, Alaska · 10780 days ago · 33 km deep · 18 km away
  4. 4.4Rat Islands, Aleutian Islands, Alaska · 10780 days ago · 33 km deep · 16 km away
  5. 3.8Rat Islands, Aleutian Islands, Alaska · 10780 days ago · 33 km deep · 25 km away
  6. 3.3Rat Islands, Aleutian Islands, Alaska · 10781 days ago · 33 km deep · 19 km away
  7. 3.7286 km WSW of Adak, Alaska · 10781 days ago · 33 km deep · 14 km away
  8. 4.2283 km WSW of Adak, Alaska · 10781 days ago · 33 km deep · 15 km away
  9. 4.8281 km WSW of Adak, Alaska · 10781 days ago · 33 km deep · 14 km away
  10. 4.8282 km WSW of Adak, Alaska · 10781 days ago · 33 km deep · 5 km away
  11. 5.2282 km WSW of Adak, Alaska · 10781 days ago · 33 km deep · 12 km away
  12. 5.3280 km WSW of Adak, Alaska · 10781 days ago · 33 km deep · 11 km away
  13. 3.9269 km W of Adak, Alaska · 10782 days ago · 33 km deep · 70 km away
  14. 4.1280 km WSW of Adak, Alaska · 10782 days ago · 33 km deep · 4 km away
  15. 3.5286 km WSW of Adak, Alaska · 10782 days ago · 33 km deep · 26 km away
  16. 4.7283 km WSW of Adak, Alaska · 10782 days ago · 33 km deep · 30 km away
  17. 4.1262 km W of Adak, Alaska · 10782 days ago · 33 km deep · 73 km away
  18. 6.7273 km WSW of Adak, Alaska · 10782 days ago · 33 km deep · 17 km away
  19. 4.6283 km WSW of Adak, Alaska · 10783 days ago · 33 km deep · 20 km away
  20. 4.2194 km WSW of Adak, Alaska · 10786 days ago · 33 km deep · 91 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0007zhx. Read Thu, Oct 1, 2026, 5:01 PM UTC.