QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4ml

28 km ESE of Mapleton, Utah

· 14 km deep · released about 100 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Utah County 34 kmWasatch County 39 kmCarbon County 71 kmSanpete County 73 kmDuchesne County 81 kmSalt Lake County 91 kmSummit County 101 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 2.4 (ml)
Depth
14 km below the surface
Felt
no reports yet
Nearest
Utah County, 34 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 992 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 100 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 140,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 100,000× the energy of this one
  3. Around the size people start to feel M 3.0 9.1× the energy of this one
  4. This earthquake M 2.4 about 100 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 39.9975, -111.2985. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Utah County, UT 34 km (21 mi) ESE of here earthquakes near Utah County
Wasatch County, UT 39 km (24 mi) SSW of here earthquakes near Wasatch County
Carbon County, UT 71 km (44 mi) WNW of here earthquakes near Carbon County
Sanpete County, UT 73 km (46 mi) NNE of here earthquakes near Sanpete County
Duchesne County, UT 81 km (50 mi) WSW of here earthquakes near Duchesne County
Salt Lake County, UT 91 km (57 mi) SE of here earthquakes near Salt Lake County

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

Aftershocks so far

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

  1. 1.8 2 km N of Helper, Utah
  2. 1.6 3 km N of Helper, Utah
  3. 1.5 2 km N of Helper, Utah
  4. 1.6 4 km NNE of Helper, Utah
  5. 1.6 5 km WNW of Scofield, Utah
  6. 1.6 3 km NNE of Clear Creek, Utah
  7. 1.6 8 km N of Helper, Utah
  8. 1.7 5 km W of Wallsburg, Utah
  9. 2.2 10 km ESE of Fairview, Utah
  10. 1.5 8 km NNE of Fountain Green, Utah
  11. 1.7 8 km NW of Helper, Utah
  12. 2.7 15 km E of Independence, Utah
  13. 2.7 Utah
  14. 1.5 28 km ESE of Mapleton, 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.