QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

19 km SSW of Irwin, Idaho

· 13 km deep · released about 7.1 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Bonneville County 25 kmCaribou County 52 kmTeton County 59 kmMadison County 64 kmBingham County 81 kmBannock County 91 kmJefferson County 97 kmBear Lake County 107 kmFremont County 109 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 1.6 (ml)
Depth
13 km below the surface
Felt
no reports yet
Nearest
Bonneville County, 25 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2673 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 7.1 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,100,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,500,000× the energy of this one
  3. Around the size people start to feel M 3.0 130× the energy of this one
  4. This earthquake M 1.6 about 7.1 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 43.2435, -111.3950. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Bonneville County, ID 25 km (15 mi) SE of here earthquakes near Bonneville County
Caribou County, ID 52 km (32 mi) NNE of here earthquakes near Caribou County
Teton County, ID 59 km (37 mi) SSW of here earthquakes near Teton County
Madison County, ID 64 km (40 mi) SSE of here earthquakes near Madison County
Bingham County, ID 81 km (51 mi) E of here earthquakes near Bingham County
Bannock County, ID 91 km (57 mi) NE of here earthquakes near Bannock 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 26 km SSW of Irwin, Idaho
  2. 2.3 11 km NE of Star Valley Ranch, Wyoming
  3. 2.1 27 km SSW of Irwin, Idaho
  4. 3.3 10 km W of Hoback, Wyoming
  5. 2.8 7 km WSW of Hoback, Wyoming
  6. 1.9 15 km W of Freedom, Idaho
  7. 3.3 13 km W of Freedom, Idaho
  8. 2.8 13 km W of Freedom, Idaho
  9. 3.1 40 km N of Soda Springs, Idaho
  10. 2.4 6 km W of Hoback, Wyoming
  11. 1.7 14 km E of Irwin, Idaho
  12. 1.7 11 km ENE of Swan Valley, Idaho
  13. 1.7 8 km NW of Alpine Northwest, Wyoming
  14. 2.2 Wyoming
  15. 2.3 7 km E of Alpine Northeast, 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.