M4.5 earthquake 162 km ESE of Attu Station, Alaska
A magnitude 4.5 earthquake struck 162 km ESE of Attu Station, Alaska on Sat, Oct 26, 1985, 4:55 PM GMT+12 (04:55 UTC), 85 km (53 mi) below the surface.
A larger quake followed: M5.8 197 km SE of Attu Station, 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
- 1985-10-26 04:55:45 UTC
- Depth
- 85.3 km (53.0 mi), intermediate-depth
- Epicenter
- 52.349° N, 175.441° E
- 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
- FROM_LOCATION
Nearby
Within 100 km, magnitude 1.5 and up: 1 in the 60 days after this one and 0 in the 30 days before it.
After
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002m4x. Read Tue, Sep 22, 2026, 7:51 AM UTC.