QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1ml

16 km N of Alpine Northeast, Wyoming

· 5.3 km deep · released about 46 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Bonneville County 47 kmTeton County 49 kmMadison County 70 kmCaribou County 74 kmTeton County 93 kmFremont County 104 kmBingham County 110 kmSublette County 111 kmJefferson County 115 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 2.1 (ml)
Depth
5.3 km below the surface
Felt
no reports yet
Nearest
Bonneville County, 47 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3008 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 46 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 330,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 230,000× the energy of this one
  3. Around the size people start to feel M 3.0 21× the energy of this one
  4. This earthquake M 2.1 about 46 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 43.3375, -111.0448. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Bonneville County, ID 47 km (29 mi) E of here earthquakes near Bonneville County
Teton County, ID 49 km (30 mi) SSE of here earthquakes near Teton County
Madison County, ID 70 km (44 mi) SE of here earthquakes near Madison County
Caribou County, ID 74 km (46 mi) NNE of here earthquakes near Caribou County
Teton County, WY 93 km (58 mi) SSW of here earthquakes near Teton County
Fremont County, ID 104 km (65 mi) SSE of here earthquakes near Fremont County

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

Aftershocks so far

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

  1. 2.0 13 km E of Jackson, Wyoming
  2. 2.3 11 km N of Alpine Northeast, Wyoming
  3. 1.6 14 km ENE of Star Valley Ranch, Wyoming
  4. 1.5 Wyoming
  5. 1.5 2 km S of Alta, Wyoming
  6. 2.1 19 km NW of Bondurant, Wyoming
  7. 1.9 5 km SSW of Victor, Idaho
  8. 1.7 14 km ENE of Hoback, Wyoming
  9. 1.6 19 km SSW of Irwin, Idaho
  10. 1.8 2 km E of South Park, Wyoming
  11. 1.7 16 km W of Alpine Northwest, Wyoming
  12. 2.4 4 km N of Hoback, Wyoming
  13. 2.4 5 km N of Hoback, Wyoming
  14. 1.8 2 km WNW of Victor, Idaho
  15. 2.1 6 km NNW 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.