Utah earthquakes

M1.8 earthquake 6 km ENE of Sigurd, Utah

A magnitude 1.8 earthquake struck 6 km ENE of Sigurd, Utah on Mon, Feb 11, 1985, 1:04 AM MST (08:04 UTC), 10 km (7 mi) below the surface.

A larger quake followed: M2.0 7 km E of Sigurd, Utah. This one was a foreshock.

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Map

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

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The earthquake

Magnitude
1.8 (md), micro
Local time
UTC
1985-02-11 08:04:35 UTC
Depth
10.5 km (6.5 mi), shallow
Epicenter
38.854° N, 111.897° 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 1.4 km horizontally, 1.9 km in depth
Depth from
From location
Station coverage gap
106°
Stations used
13

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 18 in the 60 days after this one and 5 in the 30 days before it.

After

  1. 1.65 km E of Sigurd, Utah · 15198 days ago · 2 km deep · 1 km away
  2. 2.07 km E of Sigurd, Utah · 15198 days ago · 11 km deep · 2 km away
  3. 2.07 km ENE of Sigurd, Utah · 15198 days ago · 10 km deep · 1 km away
  4. 2.03 km NNE of Joseph, Utah · 15195 days ago · 6 km deep · 34 km away
  5. 1.510 km SSW of Marysvale, Utah · 15191 days ago · 6 km deep · 64 km away
  6. 1.66 km E of Leamington, Utah · 15190 days ago · 4 km deep · 81 km away
  7. 1.615 km ESE of Mount Pleasant, Utah · 15186 days ago · 5 km deep · 88 km away
  8. 1.719 km ESE of Mount Pleasant, Utah · 15186 days ago · 3 km deep · 90 km away
  9. 1.530 km SSW of Kanosh, Utah · 15182 days ago · 4 km deep · 68 km away
  10. 1.62 km ESE of Redmond, Utah · 15182 days ago · 10 km deep · 17 km away
  11. 1.9Utah · 15181 days ago · 10 km deep · 69 km away
  12. 2.514 km WSW of Antimony, Utah · 15174 days ago · 7 km deep · 90 km away
  13. 1.513 km WSW of Antimony, Utah · 15174 days ago · 6 km deep · 88 km away
  14. 2.18 km SW of Marysvale, Utah · 15169 days ago · -1 km deep · 62 km away
  15. 1.57 km ENE of Leamington, Utah · 15163 days ago · 1 km deep · 82 km away
  16. 3.112 km SW of Antimony, Utah · 15155 days ago · 13 km deep · 93 km away
  17. 2.410 km SW of Antimony, Utah · 15154 days ago · 6 km deep · 91 km away
  18. 1.64 km SW of Levan, Utah · 15141 days ago · -1 km deep · 75 km away

Before

  1. 1.87 km E of Sigurd, Utah · 15198 days ago · 13 km deep · 2 km away
  2. 1.66 km E of Sigurd, Utah · 15198 days ago · 4 km deep · 1 km away
  3. 1.911 km NW of Orangeville, Utah · 15199 days ago · 8 km deep · 83 km away
  4. 1.79 km NW of Fayette, Utah · 15207 days ago · -3 km deep · 49 km away
  5. 1.722 km SSW of Kanosh, Utah · 15219 days ago · 0 km deep · 63 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uu50019170. Read Tue, Sep 22, 2026, 10:00 AM UTC.