QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8ml

16 km SE of Clawson, Utah

· 4.4 km deep · released about 14 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Emery County 20 kmSanpete County 65 kmCarbon County 76 kmSevier County 82 kmWayne County 87 kmGrand County 119 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
Magnitude
M 1.8 (ml)
Depth
4.4 km below the surface
Felt
no reports yet
Nearest
Emery County, 20 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2742 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 14 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,100,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 790,000× the energy of this one
  3. Around the size people start to feel M 3.0 70× the energy of this one
  4. This earthquake M 1.8 about 14 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.

Where

Epicentre 39.0455, -110.9455. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Emery County, UT 20 km (12 mi) WNW of here earthquakes near Emery County
Sanpete County, UT 65 km (41 mi) ESE of here earthquakes near Sanpete County
Carbon County, UT 76 km (47 mi) SSW of here earthquakes near Carbon County
Sevier County, UT 82 km (51 mi) ENE of here earthquakes near Sevier County
Wayne County, UT 87 km (54 mi) N of here earthquakes near Wayne County
Grand County, UT 119 km (74 mi) W of here earthquakes near Grand County

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

Aftershocks so far

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

  1. 1.7 16 km SW of Emery, Utah
  2. 1.5 18 km SW of Emery, Utah
  3. 1.8 16 km SW of Emery, Utah
  4. 1.6 16 km SW of Emery, Utah
  5. 1.5 17 km SW of Emery, Utah
  6. 1.7 16 km SW of Emery, Utah
  7. 1.6 16 km SW of Emery, Utah
  8. 1.8 18 km SW of Emery, Utah
  9. 1.6 18 km WSW of Emery, Utah
  10. 1.9 16 km SW of Emery, Utah
  11. 1.6 16 km SW of Emery, Utah
  12. 1.6 16 km SW of Emery, Utah
  13. 1.5 16 km SW of Emery, Utah
  14. 1.6 16 km SW of Emery, Utah
  15. 2.1 16 km SW of Emery, 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.