QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5ml

9 km NE of Irwin, Idaho

· 7.0 km deep · released about 5.7 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Teton County 32 kmBonneville County 34 kmMadison County 49 kmCaribou County 81 kmFremont County 85 kmTeton County 90 kmJefferson County 95 kmBingham County 99 kmBannock County 119 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 1.5 (ml)
Depth
7.0 km below the surface
Felt
no reports yet
Nearest
Teton County, 32 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2874 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 5.7 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,600,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,900,000× the energy of this one
  3. Around the size people start to feel M 3.0 170× the energy of this one
  4. This earthquake M 1.5 about 5.7 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 43.4753, -111.2217. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Teton County, ID 32 km (20 mi) S of here earthquakes near Teton County
Bonneville County, ID 34 km (21 mi) ENE of here earthquakes near Bonneville County
Madison County, ID 49 km (31 mi) SE of here earthquakes near Madison County
Caribou County, ID 81 km (50 mi) NNE of here earthquakes near Caribou County
Fremont County, ID 85 km (53 mi) SSE of here earthquakes near Fremont County
Teton County, WY 90 km (56 mi) SW of here earthquakes near Teton 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. 1.6 6 km NW of Wilson, Wyoming
  2. 2.1 12 km W of Wilson, Wyoming
  3. 1.7 10 km SSE of Victor, Idaho
  4. 1.7 11 km ENE of Alta, Wyoming
  5. 2.3 5 km SSW of Driggs, Idaho
  6. 1.9 8 km NW of Hoback, Wyoming
  7. 1.8 6 km NNE of Alpine Northeast, Wyoming
  8. 2.3 3 km SSE of Jackson, Wyoming
  9. 2.1 16 km WSW of Rafter J Ranch, Wyoming
  10. 2.1 7 km SE of Victor, Idaho
  11. 2.1 11 km WNW of Hoback, Wyoming
  12. 2.0 2 km S of Jackson, Wyoming
  13. 1.7 11 km ESE of Alpine, Wyoming
  14. 2.0 19 km N of Alpine Northeast, Wyoming
  15. 1.9 14 km SW of Wilson, 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.