M4.8 earthquake 69 km SSW of Atka, Alaska
A magnitude 4.8 earthquake struck 69 km SSW of Atka, Alaska on Sat, Nov 30, 1985, 3:37 PM HAST (01:37 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M5.6 103 km SE of Atka, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.8 (mb), light
- Local time
- UTC
- 1985-12-01 01:37:01 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 51.601° N, 174.521° 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 1.8 and up: 6 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.567 km W of Atka, Alaska · 14895 days ago · 33 km deep · 83 km away
- 4.4118 km SE of Adak, Alaska · 14895 days ago · 33 km deep · 60 km away
- 4.363 km W of Atka, Alaska · 14895 days ago · 33 km deep · 78 km away
- 4.5114 km SSW of Atka, Alaska · 14895 days ago · 33 km deep · 49 km away
- 4.5Andreanof Islands, Aleutian Islands, Alaska · 14884 days ago · 156 km deep · 60 km away
- 5.6103 km SE of Atka, Alaska · 14858 days ago · 33 km deep · 98 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002ne5. Read Tue, Sep 22, 2026, 3:25 PM UTC.