QuakeIndex

Earthquake · reviewed by a seismologist

M 3.3ml

8 km ENE of Kenilworth, Utah

· -3.1 km deep · released about 1.5 tons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Carbon County 11 kmDuchesne County 69 kmEmery County 78 kmWasatch County 79 kmSanpete County 83 kmUtah County 93 kmUintah 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 3.3 (ml)
Depth
-3.1 km below the surface
Felt
3 reports · strongest reported intensity III
Nearest
Carbon County, 11 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1971 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 3 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 39.7100, -110.7127. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Carbon County, UT 11 km (7 mi) WNW of here earthquakes near Carbon County
Duchesne County, UT 69 km (43 mi) SSW of here earthquakes near Duchesne County
Emery County, UT 78 km (48 mi) N of here earthquakes near Emery County
Wasatch County, UT 79 km (49 mi) SSE of here earthquakes near Wasatch County
Sanpete County, UT 83 km (52 mi) ENE of here earthquakes near Sanpete County
Utah County, UT 93 km (58 mi) ESE of here earthquakes near Utah 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. 1.6 15 km SSE of Sunnyside, Utah
  2. 1.6 16 km SSE of Sunnyside, Utah
  3. 1.6 Utah
  4. 1.9 15 km SSE of Sunnyside, Utah
  5. 2.0 14 km SSE of Sunnyside, Utah
  6. 1.6 15 km SSE of Sunnyside, Utah
  7. 1.8 15 km SSE of Sunnyside, Utah
  8. 2.1 16 km SSE of Sunnyside, Utah
  9. 1.5 15 km SSE of Sunnyside, Utah
  10. 2.0 16 km SSE of Sunnyside, Utah
  11. 1.6 15 km SSE of Sunnyside, Utah
  12. 1.7 15 km SSE of Sunnyside, Utah
  13. 1.7 16 km SSE of Sunnyside, Utah
  14. 1.5 15 km SSE of Sunnyside, Utah
  15. 1.7 6 km W of Hiawatha, 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.