M1.6 earthquake 3 km WSW of Ophir, Utah
A magnitude 1.6 earthquake struck 3 km WSW of Ophir, Utah on Fri, Oct 23, 1981, 6:18 PM MDT (00:18 UTC), 6 km (4 mi) below the surface.
A larger quake followed: M1.9 15 km ENE of Leamington, 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
- 1981-10-24 00:18:01 UTC
- Depth
- 6.0 km (3.7 mi), shallow
- Epicenter
- 40.354° N, 112.297° 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 1.6 km horizontally, 7.4 km in depth
- Depth from
- From location
- Station coverage gap
- 265°, poorly surrounded by stations
- Stations used
- 6
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 2 in the 60 days after this one and 3 in the 30 days before it.
After
- 1.915 km ENE of Leamington, Utah · 16389 days ago · 3 km deep · 84 km away
- 2.15 km NE of Orem, Utah · 16350 days ago · 0 km deep · 55 km away
Before
Earthquakes todayUtah earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uu50002855. Read Tue, Sep 22, 2026, 5:14 PM UTC.