QuakeIndex

Earthquake · reviewed by a seismologist

M 3.1ml

11 km NNE of Tetonia, Idaho

· 7.5 km deep · released about 1,300 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Teton County 19 kmFremont County 46 kmMadison County 47 kmTeton County 56 kmBonneville County 71 kmJefferson County 99 kmClark 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 3.1 (ml)
Depth
7.5 km below the surface
Felt
31 reports · strongest reported intensity IV
Nearest
Teton County, 19 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1023 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 31 people have reported feeling it to USGS.

How big was it?

This earthquake released about 1,300 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.1 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 250,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 11,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 7,900× the energy of this one
  4. This earthquake M 3.1 about 1,300 lb of TNT
  5. Around the size people start to feel M 3.0 this one released 1.4× more

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 43.9087, -111.0947. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Teton County, ID 19 km (12 mi) NNE of here earthquakes near Teton County
Fremont County, ID 46 km (29 mi) SE of here earthquakes near Fremont County
Madison County, ID 47 km (29 mi) ENE of here earthquakes near Madison County
Teton County, WY 56 km (35 mi) WSW of here earthquakes near Teton County
Bonneville County, ID 71 km (44 mi) NE of here earthquakes near Bonneville County
Jefferson County, ID 99 km (61 mi) E of here earthquakes near Jefferson County

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

Aftershocks so far

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

  1. 1.8 46 km NE of Alta, Wyoming
  2. 2.2 46 km NE of Alta, Wyoming
  3. 2.5 46 km NE of Alta, Wyoming
  4. 1.9 46 km NE of Alta, Wyoming
  5. 1.7 9 km ENE of Alta, Wyoming
  6. 1.6 10 km ENE of Alta, Wyoming
  7. 2.4 10 km ENE of Alta, Wyoming
  8. 3.0 44 km ENE of Warm River, Idaho
  9. 1.6 Wyoming
  10. 2.3 43 km ENE of Warm River, Idaho
  11. 1.9 43 km ENE of Warm River, Idaho
  12. 1.6 43 km ENE of Warm River, Idaho
  13. 1.6 42 km ENE of Warm River, Idaho
  14. 2.1 41 km ENE of Warm River, Idaho
  15. 3.2 44 km ENE of Warm River, Idaho

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.