M4.8 earthquake 65 km S of Nikolski, Alaska
A magnitude 4.8 earthquake struck 65 km S of Nikolski, Alaska on Tue, Oct 1, 1985, 11:49 PM AKDT (07:49 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M4.9 99 km SSW of Nikolski, 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
- 1985-10-02 07:49:52 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 52.349° N, 168.783° 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
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.8 and up: 4 in the 60 days after this one and 4 in the 30 days before it.
After
- 4.877 km S of Nikolski, Alaska · 14963 days ago · 33 km deep · 14 km away
- 4.588 km SSW of Nikolski, Alaska · 14963 days ago · 33 km deep · 38 km away
- 4.999 km SSW of Nikolski, Alaska · 14963 days ago · 33 km deep · 49 km away
- 4.851 km ESE of Nikolski, Alaska · 14949 days ago · 33 km deep · 62 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002kck. Read Tue, Sep 22, 2026, 9:42 AM UTC.