QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1ml

5 km NNE of Fountain Green, Utah

· 7.3 km deep · released about 51 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Sanpete County 33 kmUtah County 50 kmWasatch County 83 kmCarbon County 87 kmJuab County 102 kmSevier County 105 kmEmery County 106 kmSalt Lake 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
Magnitude
M 2.1 (ml)
Depth
7.3 km below the surface
Felt
no reports yet
Nearest
Sanpete County, 33 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2008 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 51 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 300,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 210,000× the energy of this one
  3. Around the size people start to feel M 3.0 19× the energy of this one
  4. This earthquake M 2.1 about 51 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 39.6728, -111.6003. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Sanpete County, UT 33 km (21 mi) N of here earthquakes near Sanpete County
Utah County, UT 50 km (31 mi) S of here earthquakes near Utah County
Wasatch County, UT 83 km (51 mi) SSW of here earthquakes near Wasatch County
Carbon County, UT 87 km (54 mi) W of here earthquakes near Carbon County
Juab County, UT 102 km (63 mi) E of here earthquakes near Juab County
Sevier County, UT 105 km (65 mi) N of here earthquakes near Sevier County

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

Aftershocks so far

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

  1. 1.6 11 km W of Clear Creek, Utah
  2. 1.9 3 km NNE of Mount Pleasant, Utah
  3. 1.8 Utah
  4. 1.8 3 km N of Mount Pleasant, Utah
  5. 2.6 3 km N of Mount Pleasant, Utah
  6. 2.7 3 km N of Mount Pleasant, Utah
  7. 1.8 14 km WSW of Levan, Utah
  8. 1.7 11 km NW of Fayette, Utah
  9. 1.9 13 km WSW of Levan, Utah
  10. 1.9 12 km WSW of Levan, Utah
  11. 1.9 19 km SE of Spring City, Utah
  12. 2.2 9 km WSW of Mona, Utah
  13. 2.2 24 km ESE of Woodland Hills, Utah
  14. 1.5 17 km W of Hiawatha, Utah
  15. 3.0 4 km ENE of Mount Pleasant, 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.