Utah earthquakes

M1.8 earthquake 8 km W of Nephi, Utah

A magnitude 1.8 earthquake struck 8 km W of Nephi, Utah on Mon, Oct 12, 1981, 5:46 PM MDT (23:46 UTC), 4 km (2 mi) below the surface.

A larger quake followed: M2.4 5 km N of Helper, Utah. This one was a foreshock.

Nephi 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
1.8 (md), micro
Local time
UTC
1981-10-12 23:46:00 UTC
Depth
3.8 km (2.3 mi), shallow
Epicenter
39.713° N, 111.938° 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 2.3 km horizontally, 3.1 km in depth
Depth from
From location
Station coverage gap
133°
Stations used
10

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 17 in the 60 days after this one and 13 in the 30 days before it.

After

  1. 1.811 km W of Huntington, Utah · 16422 days ago · 12 km deep · 84 km away
  2. 2.117 km ESE of Mayfield, Utah · 16420 days ago · 9 km deep · 83 km away
  3. 1.63 km WSW of Ophir, Utah · 16411 days ago · 6 km deep · 78 km away
  4. 2.3Utah · 16406 days ago · -3 km deep · 29 km away
  5. 1.58 km N of Fayette, Utah · 16405 days ago · 12 km deep · 46 km away
  6. 2.08 km NNW of Fayette, Utah · 16405 days ago · 8 km deep · 46 km away
  7. 1.78 km N of Fayette, Utah · 16405 days ago · 14 km deep · 46 km away
  8. 2.33 km W of Hiawatha, Utah · 16402 days ago · 9 km deep · 80 km away
  9. 2.45 km N of Helper, Utah · 16398 days ago · 2 km deep · 93 km away
  10. 1.915 km ENE of Leamington, Utah · 16396 days ago · 3 km deep · 21 km away
  11. 1.64 km WSW of Hiawatha, Utah · 16394 days ago · 6 km deep · 80 km away
  12. 1.711 km W of Huntington, Utah · 16394 days ago · 3 km deep · 83 km away
  13. 1.73 km W of Hiawatha, Utah · 16390 days ago · 11 km deep · 80 km away
  14. 2.011 km W of Huntington, Utah · 16387 days ago · 5 km deep · 84 km away
  15. 1.614 km W of Huntington, Utah · 16387 days ago · 6 km deep · 80 km away
  16. 1.711 km NNW of Orangeville, Utah · 16383 days ago · 6 km deep · 84 km away
  17. 2.05 km WNW of Hiawatha, Utah · 16363 days ago · 6 km deep · 78 km away

Before

  1. 1.89 km W of Nephi, Utah · 16422 days ago · 10 km deep · 1 km away
  2. 1.53 km SSW of Scofield, Utah · 16427 days ago · 6 km deep · 65 km away
  3. 1.64 km W of Genola, Utah · 16433 days ago · 0 km deep · 32 km away
  4. 1.77 km W of Huntington, Utah · 16435 days ago · 6 km deep · 87 km away
  5. 2.09 km NNW of Orangeville, Utah · 16435 days ago · 11 km deep · 85 km away
  6. 1.911 km NNW of Orangeville, Utah · 16438 days ago · 6 km deep · 84 km away
  7. 2.511 km W of Huntington, Utah · 16438 days ago · 7 km deep · 84 km away
  8. 1.89 km NNW of Orangeville, Utah · 16438 days ago · 7 km deep · 85 km away
  9. 2.514 km W of Huntington, Utah · 16440 days ago · 8 km deep · 80 km away
  10. 2.312 km W of Huntington, Utah · 16446 days ago · 8 km deep · 82 km away
  11. 1.810 km W of Huntington, Utah · 16446 days ago · 7 km deep · 84 km away
  12. 2.111 km W of Huntington, Utah · 16447 days ago · 6 km deep · 83 km away
  13. 2.119 km ESE of Mayfield, Utah · 16451 days ago · 5 km deep · 83 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uu50002810. Read Tue, Sep 29, 2026, 3:32 AM UTC.