QuakeIndex

Earthquake · reviewed by a seismologist

M 4.0ml

15 km NNE of Tabiona, Utah

· 16 km deep · released about 17 tons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Duchesne County 29 kmWasatch County 46 kmSummit County 50 kmUinta County 89 kmCarbon County 91 kmUtah County 95 kmMorgan County 103 kmUintah County 104 kmDaggett County 106 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 4.0 (ml)
Depth
16 km below the surface
Felt
8 reports · strongest reported intensity IV
Measured shaking
intensity IV (ShakeMap)
USGS impact alert
green
Nearest
Duchesne County, 29 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1564 days ago

This was a light earthquake. It is usually felt clearly nearby and can rattle windows and dishes, but damage is uncommon. 8 people have reported feeling it to USGS.

How big was it?

This earthquake released about 17 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 5.0 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 10,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 450× the energy of this one
  3. Magna, Utah 2020 M 5.7 320× the energy of this one
  4. This earthquake M 4.0 about 17 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 35× 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 40.4883, -110.6515. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Duchesne County, UT 29 km (18 mi) NW of here earthquakes near Duchesne County
Wasatch County, UT 46 km (29 mi) ENE of here earthquakes near Wasatch County
Summit County, UT 50 km (31 mi) SSE of here earthquakes near Summit County
Uinta County, WY 89 km (55 mi) S of here earthquakes near Uinta County
Carbon County, UT 91 km (56 mi) N of here earthquakes near Carbon County
Utah County, UT 95 km (59 mi) ENE of here earthquakes near Utah County

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

Aftershocks so far

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

  1. 1.6 21 km W of Tabiona, Utah
  2. 1.6 8 km E of Independence, Utah
  3. 1.9 42 km SSE of Evanston, Wyoming
  4. 2.0 42 km SSE of Evanston, Wyoming
  5. 1.6 19 km E of Independence, Utah
  6. 2.3 19 km E of Independence, Utah
  7. 2.4 19 km E of Independence, Utah
  8. 1.9 20 km E of Independence, Utah
  9. 2.2 42 km SSE of Evanston, Wyoming
  10. 2.2 42 km SSE of Evanston, Wyoming
  11. 1.6 43 km NE of Samak, Utah
  12. 2.5 28 km NNW of Tabiona, Utah
  13. 2.1 42 km ENE of Oakley, Utah
  14. 2.7 41 km ENE of Oakley, Utah
  15. 2.2 42 km ENE of Oakley, 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.