QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

29 km ENE of Alta, Wyoming

· 10 km deep · released about 23 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Teton County 29 kmTeton County 42 kmFremont County 71 kmMadison County 76 kmBonneville County 91 kmPark County 112 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
10 km below the surface
Felt
no reports yet
Nearest
Teton County, 29 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2028 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 23 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 5.8 660,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 470,000× the energy of this one
  3. Around the size people start to feel M 3.0 42× the energy of this one
  4. This earthquake M 1.9 about 23 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 43.8950, -110.7195. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Teton County, WY 29 km (18 mi) SW of here earthquakes near Teton County
Teton County, ID 42 km (26 mi) ENE of here earthquakes near Teton County
Fremont County, ID 71 km (44 mi) ESE of here earthquakes near Fremont County
Madison County, ID 76 km (47 mi) E of here earthquakes near Madison County
Bonneville County, ID 91 km (57 mi) NE of here earthquakes near Bonneville County
Park County, WY 112 km (69 mi) SW of here earthquakes near Park County

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

Aftershocks so far

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

  1. 1.8 4 km SE of Moose Wilson Road, Wyoming
  2. 1.5 52 km SE of West Yellowstone, Montana
  3. 1.6 66 km SE of West Yellowstone, Montana
  4. 2.1 66 km SE of West Yellowstone, Montana
  5. 1.7 66 km SE of West Yellowstone, Montana
  6. 2.0 67 km SE of West Yellowstone, Montana
  7. 2.2 66 km SE of West Yellowstone, Montana
  8. 1.8 2 km NNE of Jackson, Wyoming
  9. 1.9 4 km NNE of Jackson, Wyoming
  10. 2.7 4 km NE of Jackson, Wyoming
  11. 1.7 16 km SE of Kelly, Wyoming
  12. 2.3 66 km NNE of Kelly, Wyoming
  13. 1.9 66 km NNE of Kelly, Wyoming
  14. 2.5 66 km NNE of Kelly, Wyoming
  15. 1.8 5 km NNE of Alta, 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.