QuakeIndex

Earthquake · reviewed by a seismologist

M 2.8ml

13 km W of Freedom, Idaho

· 5.0 km deep · released about 480 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Caribou County 37 kmBonneville County 55 kmBear Lake County 80 kmTeton County 84 kmBannock County 90 kmMadison County 95 kmLincoln County 96 kmBingham County 100 kmFranklin County 105 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 2.8 (ml)
Depth
5.0 km below the surface
Felt
1 report · strongest reported intensity III
Nearest
Caribou County, 37 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1247 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 1 person has reported feeling it to USGS.

How big was it?

This earthquake released about 480 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 32,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 22,000× the energy of this one
  3. Around the size people start to feel M 3.0 2× the energy of this one
  4. This earthquake M 2.8 about 480 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 43.0032, -111.2061. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Caribou County, ID 37 km (23 mi) NE of here earthquakes near Caribou County
Bonneville County, ID 55 km (34 mi) SE of here earthquakes near Bonneville County
Bear Lake County, ID 80 km (50 mi) N of here earthquakes near Bear Lake County
Teton County, ID 84 km (52 mi) S of here earthquakes near Teton County
Bannock County, ID 90 km (56 mi) ENE of here earthquakes near Bannock County
Madison County, ID 95 km (59 mi) SSE of here earthquakes near Madison 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. 2.2 12 km ESE of Soda Springs, Idaho
  2. 1.7 13 km ESE of Soda Springs, Idaho
  3. 2.6 18 km WNW of Auburn, Wyoming
  4. 2.1 7 km ESE of Alpine Northeast, Wyoming
  5. 2.7 15 km WSW of Auburn, Wyoming
  6. 1.6 18 km NE of Star Valley Ranch, Wyoming
  7. 1.5 18 km ENE of Star Valley Ranch, Wyoming
  8. 2.5 14 km W of Fairview, Wyoming
  9. 2.5 13 km NNE of Soda Springs, Idaho
  10. 1.6 8 km S of Hoback, Wyoming
  11. 1.9 5 km NNW of Hoback, Wyoming
  12. 1.9 13 km NNW of Georgetown, Idaho
  13. 1.7 5 km SE of Hoback, Wyoming
  14. 2.0 19 km ENE of Star Valley Ranch, Wyoming
  15. 2.8 18 km NE of Star Valley Ranch, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 5.3 on 2017-09-02 — it released about 5,600 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.