Alaska earthquakes

M5.5 earthquake 81 km SSW of Attu Station, Alaska

A magnitude 5.5 earthquake struck 81 km SSW of Attu Station, Alaska on Wed, Feb 10, 1965, 2:08 PM GMT+12 (02:08 UTC), 13 km (8 mi) below the surface.

A larger quake followed: M5.9 79 km SSW of Attu Station, Alaska. This one was a foreshock.

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The earthquake

Magnitude
5.5 (mw), moderate
Local time
UTC
1965-02-10 02:08:31 UTC
Depth
13.1 km (8.1 mi), shallow
Epicenter
52.148° N, 172.823° 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.

Magnitude uncertainty
±0.37
Depth from
From location

Nearby

Within 100 km, magnitude 2.5 and up: 7 in the 60 days after this one and 16 in the 30 days before it.

After

  1. 5.979 km SSW of Attu Station, Alaska · 22503 days ago · 27 km deep · 4 km away
  2. 5.574 km SE of Attu Station, Alaska · 22500 days ago · 33 km deep · 77 km away
  3. 5.5106 km S of Attu Station, Alaska · 22493 days ago · 32 km deep · 53 km away
  4. 6.298 km S of Attu Station, Alaska · 22490 days ago · 27 km deep · 23 km away
  5. 5.786 km SE of Attu Station, Alaska · 22485 days ago · 34 km deep · 74 km away
  6. 5.592 km SE of Attu Station, Alaska · 22481 days ago · 28 km deep · 96 km away
  7. 6.076 km SSE of Attu Station, Alaska · 22447 days ago · 15 km deep · 44 km away

Before

  1. 6.086 km W of Attu Station, Alaska · 22505 days ago · 30 km deep · 97 km away
  2. 5.681 km W of Attu Station, Alaska · 22508 days ago · 10 km deep · 93 km away
  3. 5.7108 km SE of Attu Station, Alaska · 22508 days ago · 18 km deep · 89 km away
  4. 5.6103 km SSE of Attu Station, Alaska · 22509 days ago · 15 km deep · 73 km away
  5. 5.687 km SSW of Attu Station, Alaska · 22509 days ago · 30 km deep · 10 km away
  6. 5.759 km ESE of Attu Station, Alaska · 22509 days ago · 20 km deep · 89 km away
  7. 5.7109 km SSE of Attu Station, Alaska · 22509 days ago · 30 km deep · 73 km away
  8. 6.581 km W of Attu Station, Alaska · 22510 days ago · 27 km deep · 88 km away
  9. 5.547 km SE of Attu Station, Alaska · 22511 days ago · 24 km deep · 72 km away
  10. 5.6113 km SSE of Attu Station, Alaska · 22511 days ago · 20 km deep · 81 km away
  11. 5.977 km SSW of Attu Station, Alaska · 22511 days ago · 30 km deep · 5 km away
  12. 5.743 km WSW of Attu Station, Alaska · 22511 days ago · 17 km deep · 56 km away
  13. 5.7119 km S of Attu Station, Alaska · 22511 days ago · 10 km deep · 44 km away
  14. 5.9135 km SSE of Attu Station, Alaska · 22511 days ago · 20 km deep · 92 km away
  15. 5.571 km S of Attu Station, Alaska · 22511 days ago · 26 km deep · 30 km away
  16. 5.787 km WSW of Attu Station, Alaska · 22511 days ago · 25 km deep · 70 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event iscgem859962. Read Tue, Sep 22, 2026, 9:01 PM UTC.