M4.5 earthquake 62 km SW of Nikolski, Alaska
A magnitude 4.5 earthquake struck 62 km SW of Nikolski, Alaska on Sun, Oct 25, 1981, 2:19 AM GMT-10 (12:19 UTC), 51 km (32 mi) below the surface.
A larger quake followed: M4.6 70 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
- 4.5 (mb), light
- Local time
- UTC
- 1981-10-25 12:19:14 UTC
- Depth
- 51.4 km (31.9 mi), shallow
- Epicenter
- 52.591° N, 169.589° 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.
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 2 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.670 km SSW of Nikolski, Alaska · 16387 days ago · 41 km deep · 26 km away
- 4.436 km SSE of Nikolski, Alaska · 16384 days ago · 33 km deep · 65 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001gnz. Read Tue, Sep 22, 2026, 9:16 AM UTC.