M5.1 earthquake 122 km S of Unalaska, Alaska
A magnitude 5.1 earthquake struck 122 km S of Unalaska, Alaska on Thu, Jul 25, 1985, 11:04 PM AKDT (07:04 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
- 5.1 (mb), moderate
- Local time
- UTC
- 1985-07-26 07:04:27 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 52.776° N, 166.620° 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 2.1 and up: 3 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.695 km S of Unalaska, Alaska · 15031 days ago · 33 km deep · 29 km away
- 4.3172 km SSE of Unalaska, Alaska · 15011 days ago · 33 km deep · 87 km away
- 4.4Fox Islands, Aleutian Islands, Alaska · 15005 days ago · 52 km deep · 92 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002h3g. Read Tue, Sep 22, 2026, 4:35 AM UTC.