QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4ml

1 km WSW of Bennington, Idaho

· 2.8 km deep · released about 120 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Bear Lake County 11 kmFranklin County 46 kmCaribou County 48 kmLincoln County 57 kmCache County 80 kmBannock County 80 kmRich County 85 kmOneida County 100 kmBonneville 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 2.4 (ml)
Depth
2.8 km below the surface
Felt
no reports yet
Nearest
Bear Lake County, 11 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2286 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 92,000× the energy of this one
  3. Around the size people start to feel M 3.0 8.2× 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 42.3853, -111.3397. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Bear Lake County, ID 11 km (7 mi) N of here earthquakes near Bear Lake County
Franklin County, ID 46 km (29 mi) ENE of here earthquakes near Franklin County
Caribou County, ID 48 km (30 mi) SSE of here earthquakes near Caribou County
Lincoln County, WY 57 km (35 mi) WNW of here earthquakes near Lincoln County
Cache County, UT 80 km (50 mi) NNE of here earthquakes near Cache County
Bannock County, ID 80 km (50 mi) ESE of here earthquakes near Bannock 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. 1.8 5 km WSW of Montpelier, Idaho
  2. 2.1 13 km SW of Fairview, Wyoming
  3. 2.1 4 km NW of Smoot, Wyoming
  4. 2.3 19 km NE of Georgetown, Idaho
  5. 1.6 8 km NNW of Georgetown, Idaho
  6. 2.3 10 km WSW of Grace, Idaho
  7. 2.2 7 km NNW of Georgetown, Idaho
  8. 1.6 southern Idaho
  9. 2.4 9 km NNW of Georgetown, Idaho
  10. 1.5 15 km N of Georgetown, Idaho
  11. 2.9 11 km N of Georgetown, Idaho
  12. 1.6 7 km NNW of Georgetown, Idaho
  13. 1.8 13 km NNW of Georgetown, Idaho
  14. 1.6 13 km NNW of Georgetown, Idaho
  15. 1.6 12 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 23,000 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.