QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3ml

19 km E of Mayfield, Utah

· -1.5 km deep · released about 82 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Sanpete County 31 kmSevier County 49 kmEmery County 67 kmCarbon County 99 kmPiute County 102 kmWayne County 103 kmUtah 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 2.3 (ml)
Depth
-1.5 km below the surface
Felt
no reports yet
Nearest
Sanpete County, 31 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2262 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 82 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 180,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 130,000× the energy of this one
  3. Around the size people start to feel M 3.0 12× the energy of this one
  4. This earthquake M 2.3 about 82 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 39.1048, -111.4827. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Sanpete County, UT 31 km (19 mi) SSE of here earthquakes near Sanpete County
Sevier County, UT 49 km (30 mi) NE of here earthquakes near Sevier County
Emery County, UT 67 km (41 mi) W of here earthquakes near Emery County
Carbon County, UT 99 km (62 mi) SW of here earthquakes near Carbon County
Piute County, UT 102 km (64 mi) NNE of here earthquakes near Piute County
Wayne County, UT 103 km (64 mi) NNW of here earthquakes near Wayne County

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

Aftershocks so far

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

  1. 2.0 12 km WNW of Emery, Utah
  2. 1.5 9 km SE of Scipio, Utah
  3. 1.5 25 km ESE of Salina, Utah
  4. 1.7 5 km SSE of Sterling, Utah
  5. 1.9 20 km SE of Mayfield, Utah
  6. 1.7 28 km N of Fremont, Utah
  7. 1.6 9 km NW of Sterling, Utah
  8. 1.6 3 km SSW of Manti, Utah
  9. 1.6 2 km SSW of Manti, Utah
  10. 2.3 10 km SE of Manti, Utah
  11. 2.8 4 km NW of Aurora, Utah
  12. 1.5 15 km ESE of Ephraim, Utah
  13. 1.7 18 km ESE of Spring City, Utah
  14. 1.8 26 km ESE of Salina, Utah
  15. 2.4 7 km SSE of Spring City, 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.