M4.5 earthquake 170 km WSW of Attu Station, Alaska
A magnitude 4.5 earthquake struck 170 km WSW of Attu Station, Alaska on Sat, Apr 6, 1985, 5:07 AM GMT+11 (18:07 UTC), 33 km (21 mi) below the surface.
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
- 1985-04-05 18:07:14 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 52.113° N, 170.988° 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
- OPERATOR_ASSIGNED
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 usp0002dgr. Read Tue, Sep 22, 2026, 6:10 AM UTC.