M2.8 earthquake 8 km NW of Helper, Utah
A magnitude 2.8 earthquake struck 8 km NW of Helper, Utah on Wed, Jun 3, 1987, 5:54 AM MDT (11:54 UTC), 6 km (4 mi) below the surface.
A larger quake followed: M2.8 4 km N of Sunnyside, Utah. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 2.8 (md), micro
- Local time
- UTC
- 1987-06-03 11:54:29 UTC
- Depth
- 5.8 km (3.6 mi), shallow
- Epicenter
- 39.742° N, 110.923° 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 1.1 km horizontally, 1.6 km in depth
- Depth from
- From location
- Station coverage gap
- 109°
- Stations used
- 22
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 9 in the 60 days after this one and 5 in the 30 days before it.
After
- 2.18 km NW of Helper, Utah · 14354 days ago · 2 km deep · 1 km away
- 2.84 km N of Sunnyside, Utah · 14352 days ago · 4 km deep · 48 km away
- 2.318 km WNW of Emery, Utah · 14351 days ago · 4 km deep · 96 km away
- 2.68 km WNW of Hiawatha, Utah · 14350 days ago · 6 km deep · 29 km away
- 2.26 km W of Hiawatha, Utah · 14350 days ago · 14 km deep · 31 km away
- 1.619 km E of Mayfield, Utah · 14344 days ago · 9 km deep · 84 km away
- 1.72 km E of Gunnison, Utah · 14343 days ago · 9 km deep · 99 km away
- 1.54 km E of Heber City, Utah · 14341 days ago · 7 km deep · 93 km away
- 2.95 km N of Helper, Utah · 14314 days ago · 1 km deep · 7 km away
Before
- 1.518 km NNW of Fayette, Utah · 14365 days ago · 14 km deep · 94 km away
- 2.25 km ESE of Heber City, Utah · 14373 days ago · 7 km deep · 91 km away
- 2.34 km E of Heber City, Utah · 14377 days ago · 8 km deep · 92 km away
- 1.827 km ESE of Woodland Hills, Utah · 14379 days ago · 4 km deep · 42 km away
- 2.3Utah · 14379 days ago · 13 km deep · 49 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event uu50032695 (also filed as usp00035ge). Read Tue, Sep 22, 2026, 8:42 PM UTC.