M3.5 earthquake 42 km W of Esterbrook, Wyoming
A magnitude 3.5 earthquake struck 42 km W of Esterbrook, Wyoming on Sat, Oct 20, 1984, 5:51 AM MDT (11:51 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
- 3.5 (ml), minor
- Local time
- UTC
- 1984-10-20 11:51:08 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 42.401° N, 105.874° 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: 5 in the 60 days after this one and 4 in the 30 days before it.
After
- 3.142 km W of Esterbrook, Wyoming · 15310 days ago · 33 km deep · 1 km away
- 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 · 6 km away
- 3.331 km W of Esterbrook, Wyoming · 15254 days ago · 33 km deep · 12 km away
Before
- 3.333 km W of Esterbrook, Wyoming · 15313 days ago · 33 km deep · 8 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 usp00028b2. Read Tue, Sep 22, 2026, 6:26 AM UTC.