M4.8 earthquake 78 km SE of Akutan, Alaska
A magnitude 4.8 earthquake struck 78 km SE of Akutan, Alaska on Tue, Aug 6, 1985, 7:17 PM AKDT (03:17 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M4.9 123 km S of False Pass, 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
- 1985-08-07 03:17:32 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 53.620° N, 164.958° 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: 1 in the 60 days after this one and 2 in the 30 days before it.
After
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002hf6. Read Wed, Sep 30, 2026, 7:28 AM UTC.