M3.2 earthquake 4 km SE of Big Lake, Alaska
A magnitude 3.2 earthquake struck 4 km SE of Big Lake, Alaska on Tue, Mar 19, 1985, 6:18 PM AKST (03:18 UTC), 43 km (27 mi) below the surface.
A larger quake followed: M4.1 34 km NNW of Susitna, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.2 (ml), minor
- Local time
- UTC
- 1985-03-20 03:18:20 UTC
- Depth
- 42.9 km (26.7 mi), shallow
- Epicenter
- 61.492° N, 149.898° 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: 3 in the 60 days after this one and 1 in the 30 days before it.
After
- 3.13 km SE of Big Lake, Alaska · 15159 days ago · 42 km deep · 1 km away
- 2.75 km WSW of Knik, Alaska · 15134 days ago · 47 km deep · 6 km away
- 4.134 km NNW of Susitna, Alaska · 15125 days ago · 65 km deep · 61 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002d20. Read Tue, Sep 22, 2026, 9:38 AM UTC.