Utah earthquakes

M2.9 earthquake 5 km NE of Sunnyside, Utah

A magnitude 2.9 earthquake struck 5 km NE of Sunnyside, Utah on Thu, Jun 27, 1985, 4:36 AM MDT (10:36 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M3.1 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
2.9 (md), micro
Local time
UTC
1985-06-27 10:36:28 UTC
Depth
3.2 km (2.0 mi), shallow
Epicenter
39.582° N, 110.331° 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 2.7 km horizontally, 1.4 km in depth
Depth from
From location
Station coverage gap
240°, poorly surrounded by stations
Stations used
21

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 7 in the 30 days before it.

After

  1. 3.17 km N of Sunnyside, Utah · 15062 days ago · 4 km deep · 6 km away
  2. 2.67 km NNE of Sunnyside, Utah · 15060 days ago · 4 km deep · 5 km away
  3. 1.911 km SE of Spring City, Utah · 15055 days ago · 24 km deep · 95 km away
  4. 2.89 km N of Sunnyside, Utah · 15042 days ago · 3 km deep · 8 km away
  5. 2.68 km NNE of Sunnyside, Utah · 15039 days ago · 2 km deep · 5 km away
  6. 2.219 km NNW of East Carbon City, Utah · 15029 days ago · 10 km deep · 21 km away
  7. 2.75 km NE of Sunnyside, Utah · 15023 days ago · 0 km deep · 0 km away
  8. 2.67 km NNE of Sunnyside, Utah · 15022 days ago · 5 km deep · 5 km away
  9. 1.517 km ESE of Mount Pleasant, Utah · 15003 days ago · 3 km deep · 81 km away

Before

  1. 1.917 km ENE of Kenilworth, Utah · 15065 days ago · 6 km deep · 31 km away
  2. 2.19 km NNE of Sunnyside, Utah · 15075 days ago · 4 km deep · 7 km away
  3. 2.39 km N of Sunnyside, Utah · 15078 days ago · 4 km deep · 8 km away
  4. 2.66 km ENE of Sunnyside, Utah · 15083 days ago · 3 km deep · 1 km away
  5. 2.711 km ENE of Kenilworth, Utah · 15087 days ago · 4 km deep · 33 km away
  6. 2.59 km ENE of Kenilworth, Utah · 15088 days ago · 4 km deep · 34 km away
  7. 2.77 km NNE of Sunnyside, Utah · 15090 days ago · -2 km deep · 5 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uu50022455. Read Tue, Sep 22, 2026, 8:45 PM UTC.