M6.0 earthquake 27 km SW of Adak, Alaska
A magnitude 6.0 earthquake struck 27 km SW of Adak, Alaska on Thu, Jan 24, 1957, 4:36 PM GMT-11 (03:36 UTC), 45 km (28 mi) below the surface.
A larger quake followed: M8.6 1957 Atka, Alaska Earthquake. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 6.0 (mw), strong
- Local time
- UTC
- 1957-01-25 03:36:56 UTC
- Depth
- 45.0 km (28.0 mi), shallow
- Epicenter
- 51.733° N, 176.970° 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.
- Magnitude uncertainty
- ±0.20
- Depth from
- From location
Nearby
Within 100 km, magnitude 3.0 and up: 5 in the 60 days after this one and 0 in the 30 days before it.
After
- 8.61957 Atka, Alaska Earthquake · 25406 days ago · 25 km deep · 96 km away
- 6.890 km SSW of Adak, Alaska · 25404 days ago · 15 km deep · 71 km away
- 7.160 km SW of Adak, Alaska · 25403 days ago · 20 km deep · 34 km away
- 7.175 km S of Adak, Alaska · 25401 days ago · 25 km deep · 62 km away
- 6.061 km SSW of Adak, Alaska · 25396 days ago · 35 km deep · 45 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event iscgem885874 (also filed as ushis2129). Read Tue, Sep 29, 2026, 7:01 AM UTC.