QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4ml

8 km WSW of Smoot, Wyoming

· 10 km deep · released about 120 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Bear Lake County 43 kmLincoln County 49 kmCaribou County 49 kmFranklin County 82 kmSublette County 91 kmBannock County 100 kmBonneville County 102 kmRich County 109 kmCache County 113 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 2.4 (ml)
Depth
10 km below the surface
Felt
no reports yet
Nearest
Bear Lake County, 43 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2269 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 120 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 130,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 89,000× the energy of this one
  3. Around the size people start to feel M 3.0 7.9× the energy of this one
  4. This earthquake M 2.4 about 120 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 42.5957, -111.0080. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Bear Lake County, ID 43 km (27 mi) NE of here earthquakes near Bear Lake County
Lincoln County, WY 49 km (30 mi) NNW of here earthquakes near Lincoln County
Caribou County, ID 49 km (30 mi) ESE of here earthquakes near Caribou County
Franklin County, ID 82 km (51 mi) NE of here earthquakes near Franklin County
Sublette County, WY 91 km (57 mi) WSW of here earthquakes near Sublette County
Bannock County, ID 100 km (62 mi) E of here earthquakes near Bannock County

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

Aftershocks so far

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

  1. 1.6 7 km NNW of Georgetown, Idaho
  2. 1.8 13 km NNW of Georgetown, Idaho
  3. 1.6 13 km NNW of Georgetown, Idaho
  4. 1.6 12 km NNW of Georgetown, Idaho
  5. 2.5 13 km ESE of Soda Springs, Idaho
  6. 4.2 10 km NNW of Georgetown, Idaho
  7. 2.0 16 km NE of Georgetown, Idaho
  8. 2.4 12 km ESE of Soda Springs, Idaho
  9. 2.4 16 km SW of Fairview, Wyoming
  10. 1.6 16 km E of Soda Springs, Idaho
  11. 1.6 16 km N of Georgetown, Idaho
  12. 1.7 15 km WSW of Fairview, Wyoming
  13. 1.6 13 km ESE of Soda Springs, Idaho
  14. 1.6 8 km E of Soda Springs, Idaho
  15. 1.8 11 km NNW of Georgetown, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 5.3 on 2017-09-02 — it released about 22,000 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.