QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1ml

15 km SW of Rafter J Ranch, Wyoming

· 5.0 km deep · released about 44 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Teton County 50 kmBonneville County 54 kmMadison County 75 kmCaribou County 79 kmTeton County 89 kmFremont County 106 kmSublette County 106 kmBingham County 118 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 2.1 (ml)
Depth
5.0 km below the surface
Felt
no reports yet
Nearest
Teton County, 50 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2960 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 44 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 340,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 240,000× the energy of this one
  3. Around the size people start to feel M 3.0 22× the energy of this one
  4. This earthquake M 2.1 about 44 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 43.3493, -110.9545. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Teton County, ID 50 km (31 mi) SSE of here earthquakes near Teton County
Bonneville County, ID 54 km (34 mi) E of here earthquakes near Bonneville County
Madison County, ID 75 km (46 mi) SE of here earthquakes near Madison County
Caribou County, ID 79 km (49 mi) NE of here earthquakes near Caribou County
Teton County, WY 89 km (55 mi) SSW of here earthquakes near Teton County
Fremont County, ID 106 km (66 mi) SSE of here earthquakes near Fremont County

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

Aftershocks so far

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

  1. 2.0 19 km N of Alpine Northeast, Wyoming
  2. 1.9 14 km SW of Wilson, Wyoming
  3. 1.6 12 km SW of Wilson, Wyoming
  4. 1.5 6 km ESE of Victor, Idaho
  5. 2.0 southern Idaho
  6. 2.0 11 km NE of Hoback, Wyoming
  7. 1.5 1 km SW of Driggs, Idaho
  8. 1.9 6 km WSW of Rafter J Ranch, Wyoming
  9. 2.1 9 km W of Hoback, Wyoming
  10. 1.8 2 km S of Alta, Wyoming
  11. 1.9 southern Idaho
  12. 1.6 1 km S of Driggs, Idaho
  13. 1.5 2 km S of Driggs, Idaho
  14. 1.6 11 km ESE of Kelly, Wyoming
  15. 2.0 13 km E of Jackson, 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.