M3.1 earthquake 42 km W of Esterbrook, Wyoming
A magnitude 3.1 earthquake struck 42 km W of Esterbrook, Wyoming on Mon, Oct 22, 1984, 5:17 AM MDT (11:17 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M3.2 30 km WSW of Esterbrook, Wyoming. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.1 (ml), minor
- Local time
- UTC
- 1984-10-22 11:17:56 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 42.396° N, 105.877° 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: 4 in the 60 days after this one and 5 in the 30 days before it.
After
- 3.230 km WSW of Esterbrook, Wyoming · 15308 days ago · 22 km deep · 16 km away
- 3.330 km WSW of Esterbrook, Wyoming · 15295 days ago · 33 km deep · 17 km away
- 2.938 km W of Esterbrook, Wyoming · 15265 days ago · 20 km deep · 7 km away
- 3.331 km W of Esterbrook, Wyoming · 15254 days ago · 33 km deep · 12 km away
Before
- 3.542 km W of Esterbrook, Wyoming · 15312 days ago · 33 km deep · 1 km away
- 3.333 km W of Esterbrook, Wyoming · 15313 days ago · 33 km deep · 9 km away
- 3.833 km W of Esterbrook, Wyoming · 15314 days ago · 33 km deep · 9 km away
- 4.536 km W of Esterbrook, Wyoming · 15314 days ago · 33 km deep · 7 km away
- 5.329 km W of Esterbrook, Wyoming · 15314 days ago · 33 km deep · 13 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00028cz. Read Tue, Sep 22, 2026, 9:12 AM UTC.