M4.1 earthquake 31 km ESE of Adak, Alaska
A magnitude 4.1 earthquake struck 31 km ESE of Adak, Alaska on Sat, Nov 3, 1973, 10:50 AM GMT-11 (21:50 UTC), 46 km (29 mi) below the surface.
A larger quake followed: M6.4 89 km ESE 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
- 4.1 (mb), light
- Local time
- UTC
- 1973-11-03 21:50:41 UTC
- Depth
- 46.0 km (28.6 mi), shallow
- Epicenter
- 51.732° N, 176.232° 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
- 10
Nearby
Within 100 km, magnitude 1.5 and up: 7 in the 60 days after this one and 1 in the 30 days before it.
After
- 6.489 km ESE of Adak, Alaska · 19313 days ago · 34 km deep · 58 km away
- 6.399 km SW of Atka, Alaska · 19312 days ago · 41 km deep · 70 km away
- 4.588 km WSW of Atka, Alaska · 19312 days ago · 49 km deep · 64 km away
- 4.092 km SW of Atka, Alaska · 19311 days ago · 49 km deep · 73 km away
- 4.396 km ESE of Adak, Alaska · 19310 days ago · 39 km deep · 65 km away
- 3.982 km SE of Adak, Alaska · 19292 days ago · 19 km deep · 56 km away
- 4.779 km SW of Adak, Alaska · 19284 days ago · 51 km deep · 97 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp000041f. Read Tue, Sep 22, 2026, 4:05 AM UTC.