M1.6 earthquake Utah
A magnitude 1.6 earthquake struck in Utah on Mon, Oct 7, 1985, 1:22 AM MDT (07:22 UTC), 6 km (4 mi) below the surface.
A larger quake followed: M1.8 2 km S of West Mountain, Utah. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.6 (md), micro
- Local time
- UTC
- 1985-10-07 07:22:15 UTC
- Depth
- 5.8 km (3.6 mi), shallow
- Epicenter
- 40.500° N, 111.376° W
- Region
- Utah
- 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 1.0 km horizontally, 1.9 km in depth
- Depth from
- From location
- Station coverage gap
- 129°
- Stations used
- 13
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 7 in the 60 days after this one and 2 in the 30 days before it.
After
- 1.82 km S of West Mountain, Utah · 14952 days ago · 3 km deep · 62 km away
- 2.117 km ESE of Mapleton, Utah · 14951 days ago · 8 km deep · 45 km away
- 1.68 km NNW of Henefer, Utah · 14950 days ago · 7 km deep · 67 km away
- 3.011 km NW of Lake Shore, Utah · 14933 days ago · 7 km deep · 49 km away
- 2.414 km S of Independence, Utah · 14924 days ago · 7 km deep · 38 km away
- 2.51 km SSW of Scofield, Utah · 14903 days ago · 7 km deep · 89 km away
- 1.611 km ENE of Eden, Utah · 14902 days ago · 9 km deep · 97 km away
Before
Earthquakes todayUtah earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uu50024555. Read Wed, Sep 23, 2026, 12:53 AM UTC.