QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3ml

3 km NNE of Star Valley Ranch, Wyoming

· 10 km deep · released about 85 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Caribou County 54 kmBonneville County 70 kmBear Lake County 85 kmTeton County 87 kmSublette County 88 kmLincoln County 88 kmMadison County 105 kmBannock County 110 kmFranklin 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 2.3 (ml)
Depth
10 km below the surface
Felt
3 reports · strongest reported intensity III
Nearest
Caribou County, 54 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 371 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 3 people have reported feeling it to USGS.

How big was it?

This earthquake released about 85 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 180,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 130,000× the energy of this one
  3. Around the size people start to feel M 3.0 11× the energy of this one
  4. This earthquake M 2.3 about 85 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 43.0011, -110.9450. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Caribou County, ID 54 km (34 mi) ENE of here earthquakes near Caribou County
Bonneville County, ID 70 km (44 mi) SE of here earthquakes near Bonneville County
Bear Lake County, ID 85 km (53 mi) NNE of here earthquakes near Bear Lake County
Teton County, ID 87 km (54 mi) SSE of here earthquakes near Teton County
Sublette County, WY 88 km (55 mi) WNW of here earthquakes near Sublette County
Lincoln County, WY 88 km (55 mi) NNW of here earthquakes near Lincoln County

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

Aftershocks so far

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

  1. 2.2 1 km E of Alpine Northeast, Wyoming
  2. 2.9 23 km WNW of Auburn, Wyoming
  3. 2.4 17 km WSW of Auburn, Wyoming
  4. 2.7 26 km NE of Soda Springs, Idaho
  5. 1.9 13 km WSW of Fairview, Wyoming
  6. 2.3 10 km SW of Auburn, Wyoming
  7. 2.0 3 km NE of Hoback, Wyoming
  8. 2.5 18 km W of Fairview, Wyoming
  9. 3.6 13 km W of Fairview, Wyoming
  10. 1.8 19 km SW of Freedom, Idaho
  11. 2.3 17 km W of Fairview, Wyoming
  12. 1.8 17 km WSW of Auburn, Wyoming
  13. 1.7 18 km WSW of Auburn, Wyoming
  14. 2.5 21 km E of Soda Springs, Idaho
  15. 2.6 5 km NNE of Star Valley Ranch, 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.