Alaska earthquakes

M4.7 earthquake 60 km SE of Adak, Alaska

A magnitude 4.7 earthquake struck 60 km SE of Adak, Alaska on Wed, May 13, 1987, 8:05 PM HADT (05:05 UTC), 33 km (21 mi) below the surface.

A larger quake followed: M5.0 61 km SE of Adak, Alaska. This one was a foreshock.

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The earthquake

Magnitude
4.7 (mb), light
Local time
UTC
1987-05-14 05:05:37 UTC
Depth
33.0 km (20.5 mi), shallow
Epicenter
51.431° N, 176.129° 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: 20 in the 60 days after this one and 1 in the 30 days before it.

After

  1. 5.061 km SE of Adak, Alaska · 14374 days ago · 33 km deep · 18 km away
  2. 4.774 km SSE of Adak, Alaska · 14368 days ago · 33 km deep · 14 km away
  3. 4.581 km SSE of Adak, Alaska · 14367 days ago · 33 km deep · 23 km away
  4. 4.397 km ESE of Adak, Alaska · 14364 days ago · 33 km deep · 57 km away
  5. 3.697 km SSE of Adak, Alaska · 14364 days ago · 33 km deep · 40 km away
  6. 5.570 km WSW of Adak, Alaska · 14359 days ago · 33 km deep · 96 km away
  7. 4.982 km SW of Adak, Alaska · 14359 days ago · 33 km deep · 92 km away
  8. 5.036 km SE of Adak, Alaska · 14358 days ago · 58 km deep · 26 km away
  9. 4.975 km SW of Atka, Alaska · 14351 days ago · 33 km deep · 91 km away
  10. 4.386 km SSE of Adak, Alaska · 14344 days ago · 33 km deep · 29 km away
  11. 4.986 km S of Adak, Alaska · 14336 days ago · 33 km deep · 48 km away
  12. 4.588 km S of Adak, Alaska · 14336 days ago · 33 km deep · 49 km away
  13. 4.0100 km S of Adak, Alaska · 14329 days ago · 33 km deep · 56 km away
  14. 4.588 km S of Adak, Alaska · 14329 days ago · 33 km deep · 44 km away
  15. 4.784 km S of Adak, Alaska · 14329 days ago · 33 km deep · 41 km away
  16. 5.097 km S of Adak, Alaska · 14329 days ago · 33 km deep · 52 km away
  17. 4.583 km S of Adak, Alaska · 14329 days ago · 33 km deep · 44 km away
  18. 5.388 km SSW of Atka, Alaska · 14325 days ago · 33 km deep · 100 km away
  19. 5.984 km SSW of Atka, Alaska · 14324 days ago · 33 km deep · 98 km away
  20. 5.183 km SSW of Atka, Alaska · 14323 days ago · 33 km deep · 98 km away

Before

  1. 4.463 km E of Adak, Alaska · 14404 days ago · 33 km deep · 52 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp00034zs. Read Tue, Sep 22, 2026, 8:59 PM UTC.