QuakeIndex

Earthquake · reviewed by a seismologist

M 2.9ml

15 km NNE of Granger, Wyoming

· -3.4 km deep · released about 630 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Uinta County 74 kmSweetwater County 83 kmLincoln County 88 kmDaggett County 96 kmRich County 114 kmSublette County 117 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 2.9 (ml)
Depth
-3.4 km below the surface
Felt
no reports yet
Nearest
Uinta County, 74 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 115 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 630 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 24,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 17,000× the energy of this one
  3. Around the size people start to feel M 3.0 1.5× the energy of this one
  4. This earthquake M 2.9 about 630 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 41.7125, -109.8732. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Uinta County, WY 74 km (46 mi) NE of here earthquakes near Uinta County
Sweetwater County, WY 83 km (52 mi) W of here earthquakes near Sweetwater County
Lincoln County, WY 88 km (55 mi) SE of here earthquakes near Lincoln County
Daggett County, UT 96 km (60 mi) NNW of here earthquakes near Daggett County
Rich County, UT 114 km (71 mi) E of here earthquakes near Rich County
Sublette County, WY 117 km (73 mi) S of here earthquakes near Sublette County

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

Aftershocks so far

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

  1. 3.1 3 km NW of Little America, Wyoming
  2. 3.4 3 km NNW of Little America, Wyoming
  3. 3.8 22 km NE of Granger, Wyoming
  4. 3.0 2 km NNW of Little America, Wyoming
  5. 3.0 3 km NW of Little America, Wyoming
  6. 3.1 2 km NNW of Little America, Wyoming
  7. 3.3 2 km NW of Little America, Wyoming
  8. 3.1 2 km NNW of Little America, Wyoming
  9. 3.3 2 km NW of Little America, Wyoming
  10. 3.2 2 km NW of Little America, Wyoming
  11. 3.5 1 km NW of Little America, Wyoming
  12. 3.2 2 km WNW of Little America, Wyoming
  13. 3.2 2 km WNW of Little America, Wyoming
  14. 3.3 1 km NW of Little America, Wyoming
  15. 2.9 3 km WNW of Little America, Wyoming

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.