QuakeIndex

Earthquake · reviewed by a seismologist

M 2.8ml

15 km SW of Dutch John, Utah

· 12 km deep · released about 400 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Daggett County 7 kmUintah County 79 kmDuchesne County 97 kmUinta County 100 kmSweetwater County 107 kmMoffat County 113 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 2.8 (ml)
Depth
12 km below the surface
Felt
no reports yet
Nearest
Daggett County, 7 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 587 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

How big was it?

This earthquake released about 400 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 38,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 27,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.4× the energy of this one
  4. This earthquake M 2.8 about 400 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 40.8332, -109.5283. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Daggett County, UT 7 km (4 mi) SSW of here earthquakes near Daggett County
Uintah County, UT 79 km (49 mi) N of here earthquakes near Uintah County
Duchesne County, UT 97 km (60 mi) NE of here earthquakes near Duchesne County
Uinta County, WY 100 km (62 mi) ESE of here earthquakes near Uinta County
Sweetwater County, WY 107 km (66 mi) SSW of here earthquakes near Sweetwater County
Moffat County, CO 113 km (70 mi) WNW of here earthquakes near Moffat County

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

Aftershocks so far

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

  1. 3.1 24 km NNE of Maeser, Utah
  2. 3.1 18 km NNE of Maeser, Utah
  3. 3.3 16 km NNE of Maeser, Utah
  4. 3.0 21 km NNE of Maeser, Utah
  5. 3.1 20 km NNE of Maeser, Utah
  6. 3.4 22 km NNE of Vernal, Utah
  7. 3.2 18 km NNE of Maeser, Utah
  8. 3.1 20 km NNE of Maeser, Utah
  9. 3.3 25 km NNE of Maeser, Utah
  10. 3.1 15 km NNE of Maeser, Utah
  11. 3.2 15 km NNE of Maeser, Utah
  12. 3.3 17 km NNE of Maeser, Utah
  13. 3.1 18 km NNE of Maeser, Utah
  14. 3.4 18 km NNE of Vernal, Utah
  15. 4.1 10 km W of Maeser, 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.