M4.3 earthquake 95 km W of Tyonek, Alaska
A magnitude 4.3 earthquake struck 95 km W of Tyonek, Alaska on Sun, Mar 31, 1985, 6:58 AM AKST (15:58 UTC), 163 km (101 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.3 (mb), light
- Local time
- UTC
- 1985-03-31 15:58:16 UTC
- Depth
- 162.8 km (101.2 mi), intermediate-depth
- Epicenter
- 61.040° N, 152.898° 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: 0 in the 60 days after this one and 1 in the 30 days before it.
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002dbf. Read Mon, Sep 21, 2026, 7:53 PM UTC.