Utah earthquakes

M1.8 earthquake 20 km ESE of Mayfield, Utah

A magnitude 1.8 earthquake struck 20 km ESE of Mayfield, Utah on Sat, Jan 7, 1984, 8:23 PM MST (03:23 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M2.4 9 km NW of Helper, Utah. This one was a foreshock.

Mayfield 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, duration), micro
Magnitude from
University of Utah Seismograph Stations
Local time
UTC
1984-01-08 03:23:09 UTC
Depth
2.8 km (1.7 mi), shallow
Epicenter
39.030° N, 111.499° 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 0.9 km horizontally, 1.5 km in depth
Depth from
From location
Station coverage gap
89°
Stations used
12

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 7 in the 60 days after this one and 9 in the 30 days before it.

After

  1. 2.37 km WNW of Fayette, Utah · 15609 days ago · 5 km deep · 44 km away
  2. 2.49 km NW of Helper, Utah · 15609 days ago · 6 km deep · 94 km away
  3. 1.721 km ESE of Mayfield, Utah · 15609 days ago · 5 km deep · 1 km away
  4. 1.610 km NNW of Orangeville, Utah · 15607 days ago · 6 km deep · 46 km away
  5. 1.524 km WSW of Emery, Utah · 15567 days ago · 6 km deep · 24 km away
  6. 1.524 km WSW of Emery, Utah · 15566 days ago · 10 km deep · 24 km away
  7. 2.36 km N of Orangeville, Utah · 15552 days ago · 21 km deep · 49 km away

Before

  1. 3.118 km ESE of Mayfield, Utah · 15611 days ago · 4 km deep · 2 km away
  2. 1.89 km S of Scipio, Utah · 15619 days ago · 20 km deep · 55 km away
  3. 2.422 km NW of Orangeville, Utah · 15620 days ago · 6 km deep · 43 km away
  4. 2.522 km NW of Orangeville, Utah · 15622 days ago · 7 km deep · 43 km away
  5. 1.813 km NW of Orangeville, Utah · 15634 days ago · 3 km deep · 45 km away
  6. 2.010 km NNW of Orangeville, Utah · 15634 days ago · 3 km deep · 48 km away
  7. 2.1Utah · 15639 days ago · 9 km deep · 59 km away
  8. 2.310 km NW of Fayette, Utah · 15640 days ago · 6 km deep · 49 km away
  9. 2.419 km S of Kanosh, Utah · 15640 days ago · 19 km deep · 96 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uu50012095. Read Sun, Oct 4, 2026, 9:37 PM UTC.