QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2ml

18 km WSW of Alpine Northwest, Wyoming

· 3.3 km deep · released about 58 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Caribou County 43 kmBonneville County 46 kmTeton County 73 kmMadison County 84 kmBear Lake County 91 kmBannock County 93 kmBingham County 96 kmLincoln County 107 kmSublette 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 2.2 (ml)
Depth
3.3 km below the surface
Felt
no reports yet
Nearest
Caribou County, 43 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1690 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 58 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.2 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 260,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 180,000× the energy of this one
  3. Around the size people start to feel M 3.0 16× the energy of this one
  4. This earthquake M 2.2 about 58 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 43.1008, -111.2277. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Caribou County, ID 43 km (27 mi) NE of here earthquakes near Caribou County
Bonneville County, ID 46 km (28 mi) SE of here earthquakes near Bonneville County
Teton County, ID 73 km (46 mi) S of here earthquakes near Teton County
Madison County, ID 84 km (52 mi) SSE of here earthquakes near Madison County
Bear Lake County, ID 91 km (57 mi) N of here earthquakes near Bear Lake County
Bannock County, ID 93 km (58 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

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

  1. 3.6 32 km NNE of Soda Springs, Idaho
  2. 2.7 34 km NNE of Soda Springs, Idaho
  3. 1.6 Wyoming
  4. 1.8 4 km W of Rafter J Ranch, Wyoming
  5. 1.8 2 km NNE of Freedom, Idaho
  6. 1.6 8 km S of Victor, Idaho
  7. 2.4 4 km W of Afton, Wyoming
  8. 2.2 25 km SSW of Irwin, Idaho
  9. 2.9 7 km WSW of Thayne, Wyoming
  10. 2.5 11 km WSW of Thayne, Wyoming
  11. 2.2 7 km NNW of Auburn, Wyoming
  12. 2.0 26 km SSW of Irwin, Idaho
  13. 2.6 12 km NE of Star Valley Ranch, Wyoming
  14. 2.2 11 km NE of Star Valley Ranch, Wyoming
  15. 2.6 13 km NE 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.