QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3ml

0 km NW of Benson, Utah

· 7.4 km deep · released about 74 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Cache County 17 kmFranklin County 43 kmWeber County 58 kmRich County 61 kmOneida County 65 kmBear Lake County 74 kmMorgan County 84 kmDavis County 87 kmBox Elder County 95 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 2.3 (ml)
Depth
7.4 km below the surface
Felt
1 report · strongest reported intensity III
Nearest
Cache County, 17 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1296 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 1 person has reported feeling it to USGS.

How big was it?

This earthquake released about 74 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 200,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 140,000× the energy of this one
  3. Around the size people start to feel M 3.0 13× the energy of this one
  4. This earthquake M 2.3 about 74 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 41.7933, -111.9377. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Cache County, UT 17 km (11 mi) WNW of here earthquakes near Cache County
Franklin County, ID 43 km (27 mi) SSW of here earthquakes near Franklin County
Weber County, UT 58 km (36 mi) N of here earthquakes near Weber County
Rich County, UT 61 km (38 mi) WNW of here earthquakes near Rich County
Oneida County, ID 65 km (40 mi) SE of here earthquakes near Oneida County
Bear Lake County, ID 74 km (46 mi) SW of here earthquakes near Bear Lake 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. 2.4 6 km SW of Clifton, Idaho
  2. 2.5 8 km SW of Clifton, Idaho
  3. 2.2 7 km SW of Clifton, Idaho
  4. 1.9 7 km SW of Clifton, Idaho
  5. 2.8 7 km SW of Clifton, Idaho
  6. 2.3 7 km WSW of Clifton, Idaho
  7. 2.0 7 km SW of Clifton, Idaho
  8. 1.9 8 km WSW of Clifton, Idaho
  9. 1.5 9 km WSW of Clifton, Idaho
  10. 1.6 7 km WSW of Thatcher, Utah
  11. 1.9 10 km E of Franklin, Idaho
  12. 1.9 15 km WSW of Bloomington, Idaho
  13. 1.7 8 km ENE of Howell, Utah
  14. 1.7 3 km ESE of Honeyville, Utah
  15. 1.6 9 km ESE of Avon, Utah

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.