QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

southern Idaho

· 2.9 km deep · released about 19 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Caribou County 45 kmBonneville County 52 kmTeton County 77 kmBear Lake County 89 kmMadison County 89 kmBannock County 97 kmLincoln County 101 kmBingham County 102 kmSublette County 107 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 1.9 (ml)
Depth
2.9 km below the surface
Felt
no reports yet
Nearest
Caribou County, 45 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2495 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 19 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 790,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 560,000× the energy of this one
  3. Around the size people start to feel M 3.0 50× the energy of this one
  4. This earthquake M 1.9 about 19 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 43.0723, -111.1587. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Caribou County, ID 45 km (28 mi) NE of here earthquakes near Caribou County
Bonneville County, ID 52 km (32 mi) SE of here earthquakes near Bonneville County
Teton County, ID 77 km (48 mi) S of here earthquakes near Teton County
Bear Lake County, ID 89 km (55 mi) N of here earthquakes near Bear Lake County
Madison County, ID 89 km (55 mi) SSE of here earthquakes near Madison County
Bannock County, ID 97 km (60 mi) ENE of here earthquakes near Bannock County

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

Aftershocks so far

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

  1. 2.1 7 km SSE of Hoback, Wyoming
  2. 1.9 1 km E of Alpine Northeast, Wyoming
  3. 1.7 southern Idaho
  4. 1.6 5 km SSW of Alpine, Wyoming
  5. 2.7 6 km S of Alpine, Wyoming
  6. 2.2 southern Idaho
  7. 2.1 12 km W of Wilson, Wyoming
  8. 1.7 15 km WSW of Fairview, Wyoming
  9. 2.2 35 km W of Freedom, Idaho
  10. 1.9 8 km NW of Hoback, Wyoming
  11. 1.8 6 km NNE of Alpine Northeast, Wyoming
  12. 2.1 16 km WSW of Rafter J Ranch, Wyoming
  13. 1.7 15 km ENE of Soda Springs, Idaho
  14. 3.1 21 km WNW of Auburn, Wyoming
  15. 2.1 11 km WNW of Hoback, 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.