QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4ml

18 km ESE of Mayfield, Utah

· 6.8 km deep · released about 120 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Sanpete County 38 kmSevier County 41 kmEmery County 69 kmPiute County 94 kmWayne County 97 kmCarbon County 107 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
6.8 km below the surface
Felt
no reports yet
Nearest
Sanpete County, 38 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 804 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 120 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 5.8 130,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 89,000× the energy of this one
  3. Around the size people start to feel M 3.0 7.9× the energy of this one
  4. This earthquake M 2.4 about 120 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 39.0320, -111.5200. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Sanpete County, UT 38 km (24 mi) S of here earthquakes near Sanpete County
Sevier County, UT 41 km (25 mi) NE of here earthquakes near Sevier County
Emery County, UT 69 km (43 mi) W of here earthquakes near Emery County
Piute County, UT 94 km (58 mi) NE of here earthquakes near Piute County
Wayne County, UT 97 km (61 mi) NNW of here earthquakes near Wayne County
Carbon County, UT 107 km (67 mi) SW of here earthquakes near Carbon County

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

Aftershocks so far

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

  1. 1.6 16 km NW of Emery, Utah
  2. 2.5 27 km W of Emery, Utah
  3. 1.6 10 km WNW of Fayette, Utah
  4. 1.8 8 km E of Ephraim, Utah
  5. 1.7 7 km E of Ephraim, Utah
  6. 2.3 18 km SE of Manti, Utah
  7. 2.1 18 km ESE of Sterling, Utah
  8. 1.6 10 km NNW of Aurora, Utah
  9. 1.9 11 km NW of Aurora, Utah
  10. 1.6 15 km WNW of Emery, Utah
  11. 1.5 16 km NW of Emery, Utah
  12. 1.5 22 km WSW of Emery, Utah
  13. 2.2 18 km E of Mayfield, Utah
  14. 1.9 5 km ENE of Sterling, Utah
  15. 1.8 22 km ESE of Salina, 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.