M5.1 earthquake 121 km WSW of Adak, Alaska
A magnitude 5.1 earthquake struck 121 km WSW of Adak, Alaska on Tue, Jan 9, 1973, 6:07 AM GMT-11 (17:07 UTC), 52 km (32 mi) below the surface.
A larger quake followed: M5.4 27 km WSW of Adak, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.1 (mb), moderate
- Local time
- UTC
- 1973-01-09 17:07:55 UTC
- Depth
- 52.0 km (32.3 mi), shallow
- Epicenter
- 51.405° N, 178.212° 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.
- Stations used
- 39
Nearby
Within 100 km, magnitude 2.1 and up: 7 in the 60 days after this one and 0 in the 30 days before it.
After
- 5.427 km WSW of Adak, Alaska · 19610 days ago · 61 km deep · 93 km away
- 4.728 km WSW of Adak, Alaska · 19610 days ago · 58 km deep · 93 km away
- 4.4Andreanof Islands, Aleutian Islands, Alaska · 19597 days ago · 46 km deep · 80 km away
- 4.7174 km WSW of Adak, Alaska · 19589 days ago · 60 km deep · 57 km away
- 5.4192 km WSW of Adak, Alaska · 19579 days ago · 46 km deep · 72 km away
- 4.3183 km WSW of Adak, Alaska · 19563 days ago · 47 km deep · 65 km away
- 4.6183 km W of Adak, Alaska · 19556 days ago · 103 km deep · 92 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000034. Read Tue, Sep 22, 2026, 7:43 AM UTC.