QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1ml

4 km WSW of Mount Pleasant, Utah

· 6.3 km deep · released about 46 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Sanpete County 19 kmUtah County 67 kmCarbon County 80 kmEmery County 89 kmSevier County 91 kmWasatch County 94 kmJuab County 112 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
6.3 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Sanpete County, 19 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 589 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 1 person has reported feeling it to USGS.

How big was it?

This earthquake released about 46 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 5.8 330,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 230,000× the energy of this one
  3. Around the size people start to feel M 3.0 21× the energy of this one
  4. This earthquake M 2.1 about 46 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 39.5293, -111.4997. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Sanpete County, UT 19 km (12 mi) NNE of here earthquakes near Sanpete County
Utah County, UT 67 km (42 mi) SSE of here earthquakes near Utah County
Carbon County, UT 80 km (50 mi) WSW of here earthquakes near Carbon County
Emery County, UT 89 km (55 mi) NW of here earthquakes near Emery County
Sevier County, UT 91 km (57 mi) NNE of here earthquakes near Sevier County
Wasatch County, UT 94 km (58 mi) SSW of here earthquakes near Wasatch County

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

Aftershocks so far

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

  1. 1.6 15 km NW of Fayette, Utah
  2. 2.4 15 km NW of Fayette, Utah
  3. 2.0 9 km SW of Clear Creek, Utah
  4. 2.3 9 km E of Fairview, Utah
  5. 1.6 7 km WSW of Clear Creek, Utah
  6. 2.2 7 km WSW of Clear Creek, Utah
  7. 2.1 7 km WSW of Clear Creek, Utah
  8. 1.5 6 km S of Clear Creek, Utah
  9. 1.6 6 km WSW of Clear Creek, Utah
  10. 1.9 4 km WSW of Clear Creek, Utah
  11. 2.3 10 km SW of Nephi, Utah
  12. 1.5 12 km ENE of Fairview, Utah
  13. 1.6 10 km SW of Nephi, Utah
  14. 1.6 1 km WSW of Fairview, Utah
  15. 1.6 10 km WNW of Fayette, 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.