M3.3 earthquake 31 km W of Esterbrook, Wyoming
A magnitude 3.3 earthquake struck 31 km W of Esterbrook, Wyoming on Mon, Dec 17, 1984, 2:31 AM MST (09:31 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
- 3.3 (ml), minor
- Local time
- UTC
- 1984-12-17 09:31:32 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 42.362° N, 105.733° 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.
- Depth from
- OPERATOR_ASSIGNED
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 todayWyoming earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002a4u. Read Tue, Sep 22, 2026, 8:04 AM UTC.