M5.1 earthquake 88 km SSW of Atka, Alaska
A magnitude 5.1 earthquake struck 88 km SSW of Atka, Alaska on Wed, Nov 20, 1985, 12:03 PM HAST (22:03 UTC), 53 km (33 mi) below the surface.
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
- 1985-11-20 22:03:11 UTC
- Depth
- 53.1 km (33.0 mi), shallow
- Epicenter
- 51.433° N, 174.560° 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
- CONSTRAINED_BY_DEPTH_PHASES
Nearby
Within 100 km, magnitude 2.1 and up: 6 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.869 km SSW of Atka, Alaska · 14905 days ago · 33 km deep · 19 km away
- 4.567 km W of Atka, Alaska · 14895 days ago · 33 km deep · 98 km away
- 4.4118 km SE of Adak, Alaska · 14895 days ago · 33 km deep · 48 km away
- 4.363 km W of Atka, Alaska · 14895 days ago · 33 km deep · 93 km away
- 4.5114 km SSW of Atka, Alaska · 14895 days ago · 33 km deep · 38 km away
- 4.5Andreanof Islands, Aleutian Islands, Alaska · 14883 days ago · 156 km deep · 78 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002mzm. Read Tue, Sep 22, 2026, 7:12 AM UTC.