QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6md

Earthquake near Mount Pleasant, UT

USGS: 18 km W of Hiawatha, Utah

94 km (58 mi) SSE of Provo, UT

10:18 pm MDT, Jun 13, 2018 · · -2.3 km deep · released about 6.8 lb of TNT

10 km30 km60 km120 km N Sanpete County 32 kmCarbon County 59 kmEmery County 67 kmUtah County 82 kmSevier County 95 kmWasatch County 97 kmDuchesne County 114 km
Distance rings around the epicentre, with the nearest towns at their true direction and later quakes as coloured dots. Not a shaking map — see the USGS ShakeMap for that.
When
10:18 pm MDT on 13 June 2018 ()
Where
22 km (14 mi) ESE of Mount Pleasant, UT · earthquakes near Mount Pleasant
Magnitude
M 1.6 (md)
Depth
-2.3 km below the surface
Felt
no reports yet
Nearest
Sanpete County, 32 km WSW
Nearest mapped fault
Snow Lake graben, 23 km from its surface trace — near is not the same as on
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3032 days ago

A magnitude 1.6 earthquake was recorded 22 km (14 mi) ESE of Mount Pleasant, UT, at 10:18 pm MDT on 13 June 2018 (04:18 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

Earthquakes near other towns within 30 km: Spring City, Fairview, Huntington.

How big was it?

This earthquake released about 6.8 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,200,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,600,000× the energy of this one
  3. Around the size people start to feel M 3.0 140× the energy of this one
  4. This earthquake M 1.6 about 6.8 lb of TNT

Energy from the Gutenberg–Richter relation (log10E = 1.5M + 4.8), rounded to two figures; bar length is magnitude, which is already a logarithm of energy. Magnitudes of past earthquakes from the USGS catalogue.

For this area

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

Before 2016, the USGS record lists one earthquake of M5 or more within 50 km:

  1. 5.2 13 km ESE of Castle Dale, Utah · 46 km SE of this epicentre

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Epicentre 39.4645, -111.2228. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Sanpete County, UT 32 km (20 mi) WSW earthquakes near Sanpete County
Carbon County, UT 59 km (37 mi) ENE earthquakes near Carbon County
Emery County, UT 67 km (41 mi) SE earthquakes near Emery County
Utah County, UT 82 km (51 mi) NNW earthquakes near Utah County
Sevier County, UT 95 km (59 mi) SSW earthquakes near Sevier County
Wasatch County, UT 97 km (60 mi) N earthquakes near Wasatch County

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

33 earthquakes have been recorded within 50 km since this one.

  1. 1.5 14 km W of Hiawatha, Utah
  2. 1.6 10 km SSW of Hiawatha, Utah
  3. 1.7 14 km W of Hiawatha, Utah
  4. 2.3 15 km SSW of Clear Creek, Utah
  5. 1.6 15 km W of Hiawatha, Utah
  6. 1.9 15 km W of Hiawatha, Utah
  7. 1.8 15 km SSW of Clear Creek, Utah
  8. 1.8 15 km W of Hiawatha, Utah
  9. 2.2 15 km W of Hiawatha, Utah
  10. 1.7 1 km SE of Scofield, Utah
  11. 1.9 0 km ENE of Scofield, Utah
  12. 2.0 0 km NNE of Scofield, Utah
  13. 1.6 0 km ENE of Scofield, Utah
  14. 1.6 10 km WNW of Clear Creek, Utah
  15. 1.5 6 km W of Clear Creek, Utah

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of . QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.