M3.5 earthquake 11 km ENE of Superior, Wyoming
A magnitude 3.5 earthquake struck 11 km ENE of Superior, Wyoming on Fri, Dec 6, 1985, 5:01 PM MST (00:01 UTC), -1 km (0 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.5 (md), minor
- Local time
- UTC
- 1985-12-07 00:01:04 UTC
- Depth
- -0.6 km (-0.4 mi), shallow
- Epicenter
- 41.806° N, 108.842° W
- Region
- Wyoming
- 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.
- Location uncertainty
- About 4.3 km horizontally, 6.7 km in depth
- Depth from
- From location
- Station coverage gap
- 262°, poorly surrounded by stations
- Stations used
- 15
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
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 todayWyoming earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uu50027630. Read Tue, Sep 22, 2026, 8:55 PM UTC.