Utah earthquakes

M2.7 earthquake 7 km NNE of Sunnyside, Utah

A magnitude 2.7 earthquake struck 7 km NNE of Sunnyside, Utah on Thu, Sep 5, 1985, 4:17 PM MDT (22:17 UTC), 1 km (1 mi) below the surface.

A larger quake followed: M2.9 7 km N of Sunnyside, Utah. This one was a foreshock.

East Carbon City forecastMore in Utah

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
2.7 (Md, duration), micro
Magnitude from
University of Utah Seismograph Stations
Local time
UTC
1985-09-05 22:17:31 UTC
Depth
1.2 km (0.7 mi), shallow
Epicenter
39.618° N, 110.364° 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 2.5 km horizontally, 4.7 km in depth
Depth from
From location
Station coverage gap
226°, poorly surrounded by stations
Stations used
17

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 16 in the 60 days after this one and 3 in the 30 days before it.

After

  1. 2.97 km N of Sunnyside, Utah · 15003 days ago · 3 km deep · 1 km away
  2. 2.66 km N of East Carbon City, Utah · 14996 days ago · 2 km deep · 5 km away
  3. 2.35 km N of East Carbon City, Utah · 14989 days ago · 4 km deep · 5 km away
  4. 2.67 km N of East Carbon City, Utah · 14986 days ago · 0 km deep · 5 km away
  5. 1.912 km WNW of Orangeville, Utah · 14986 days ago · 11 km deep · 81 km away
  6. 2.68 km N of Sunnyside, Utah · 14985 days ago · 5 km deep · 3 km away
  7. 2.313 km NW of Orangeville, Utah · 14983 days ago · 2 km deep · 79 km away
  8. 2.89 km NNE of Sunnyside, Utah · 14980 days ago · 3 km deep · 2 km away
  9. 2.117 km WNW of Orangeville, Utah · 14977 days ago · 8 km deep · 85 km away
  10. 2.67 km N of East Carbon City, Utah · 14972 days ago · -1 km deep · 5 km away
  11. 1.86 km NE of Sunnyside, Utah · 14971 days ago · 5 km deep · 3 km away
  12. 1.915 km WNW of Orangeville, Utah · 14971 days ago · 6 km deep · 84 km away
  13. 2.59 km N of Sunnyside, Utah · 14968 days ago · 2 km deep · 3 km away
  14. 2.0Utah · 14964 days ago · 7 km deep · 23 km away
  15. 2.410 km NNW of East Carbon City, Utah · 14962 days ago · 4 km deep · 9 km away
  16. 2.58 km NNE of Sunnyside, Utah · 14953 days ago · 2 km deep · 1 km away

Before

  1. 2.715 km ENE of Kenilworth, Utah · 15006 days ago · -2 km deep · 26 km away
  2. 2.48 km NNE of Sunnyside, Utah · 15009 days ago · 3 km deep · 2 km away
  3. 1.517 km ESE of Mount Pleasant, Utah · 15014 days ago · 3 km deep · 79 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uu50023685. Read Sun, Oct 4, 2026, 8:37 AM UTC.