M1.8 earthquake 9 km WNW of Summit Park, Utah
A magnitude 1.8 earthquake struck 9 km WNW of Summit Park, Utah on Fri, Jul 10, 1987, 3:58 PM MDT (21:58 UTC), 3 km (2 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.8 (md), micro
- Local time
- UTC
- 1987-07-10 21:58:52 UTC
- Depth
- 3.1 km (2.0 mi), shallow
- Epicenter
- 40.789° N, 111.704° 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 0.6 km horizontally, 3.8 km in depth
- Depth from
- From location
- Station coverage gap
- 73°
- Stations used
- 15
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 2 in the 30 days before it.
After
- 1.712 km ENE of Wolf Creek, Utah · 14294 days ago · 8 km deep · 67 km away
- 1.61 km SSW of Charleston, Utah · 14291 days ago · 5 km deep · 42 km away
- 1.63 km NNW of Salem, Utah · 14289 days ago · 3 km deep · 79 km away
- 1.72 km SSE of Charleston, Utah · 14276 days ago · 1 km deep · 43 km away
- 1.52 km W of Silver Summit, Utah · 14272 days ago · 11 km deep · 17 km away
Before
Earthquakes todayUtah earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uu50032890. Read Tue, Sep 22, 2026, 10:53 AM UTC.