QuakeIndex

Earthquake · reviewed by a seismologist

M 3.3ml

5 km ESE of Monroe, Utah

· 7.1 km deep · released about 1.5 tons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Sevier County 26 kmPiute County 32 kmSanpete County 94 kmMillard County 101 kmWayne County 101 kmGarfield County 102 kmBeaver 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 3.3 (ml)
Depth
7.1 km below the surface
Felt
53 reports · strongest reported intensity III
Measured shaking
intensity IV (ShakeMap)
Nearest
Sevier County, 26 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3201 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 53 people have reported feeling it to USGS.

How big was it?

This earthquake released about 1.5 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.3 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 110,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 4,900× the energy of this one
  3. Magna, Utah 2020 M 5.7 3,500× the energy of this one
  4. This earthquake M 3.3 about 1.5 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 3.2× more

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 38.6150, -112.0560. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Sevier County, UT 26 km (16 mi) SW of here earthquakes near Sevier County
Piute County, UT 32 km (20 mi) NNE of here earthquakes near Piute County
Sanpete County, UT 94 km (58 mi) SSW of here earthquakes near Sanpete County
Millard County, UT 101 km (63 mi) ESE of here earthquakes near Millard County
Wayne County, UT 101 km (63 mi) WNW of here earthquakes near Wayne County
Garfield County, UT 102 km (63 mi) NNW of here earthquakes near Garfield County

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

Aftershocks so far

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

  1. 1.8 21 km W of Marysvale, Utah
  2. 1.7 1 km WNW of Loa, Utah
  3. 2.6 1 km NW of Loa, Utah
  4. 1.5 9 km NNW of Marysvale, Utah
  5. 1.8 1 km WNW of Loa, Utah
  6. 1.8 3 km NW of Loa, Utah
  7. 1.7 1 km NNW of Loa, Utah
  8. 1.7 1 km WNW of Loa, Utah
  9. 2.6 1 km NW of Loa, Utah
  10. 1.6 1 km NW of Loa, Utah
  11. 1.8 1 km WNW of Loa, Utah
  12. 1.7 2 km W of Loa, Utah
  13. 3.1 2 km NNW of Loa, Utah
  14. 2.0 1 km WNW of Loa, Utah
  15. 2.6 1 km NNW of Loa, 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.