QuakeIndex

Earthquake · reviewed by a seismologist

M 3.2ml

1 km NE of Benson, Utah

· 0.8 km deep · released about 1,800 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Cache County 16 kmFranklin County 43 kmWeber County 58 kmRich County 59 kmOneida County 66 kmBear Lake County 73 kmMorgan County 83 kmDavis County 87 kmBox Elder County 97 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 3.2 (ml)
Depth
0.8 km below the surface
Felt
332 reports · strongest reported intensity III
Measured shaking
intensity IV (ShakeMap)
Nearest
Cache County, 16 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1271 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 332 people have reported feeling it to USGS.

How big was it?

This earthquake released about 1,800 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.2 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 180,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 8,200× the energy of this one
  3. Magna, Utah 2020 M 5.7 5,800× the energy of this one
  4. This earthquake M 3.2 about 1,800 lb of TNT
  5. Around the size people start to feel M 3.0 this one released 1.9× 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 41.7943, -111.9202. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Cache County, UT 16 km (10 mi) WNW of here earthquakes near Cache County
Franklin County, ID 43 km (27 mi) S of here earthquakes near Franklin County
Weber County, UT 58 km (36 mi) N of here earthquakes near Weber County
Rich County, UT 59 km (37 mi) WNW of here earthquakes near Rich County
Oneida County, ID 66 km (41 mi) SE of here earthquakes near Oneida County
Bear Lake County, ID 73 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. 1.9 16 km SW of Thatcher, Utah
  2. 1.7 17 km SW of Thatcher, Utah
  3. 3.9 16 km SW of Thatcher, Utah
  4. 2.0 6 km WSW of Clifton, Idaho
  5. 1.6 6 km WSW of Clifton, Idaho
  6. 1.8 6 km WSW of Clifton, Idaho
  7. 1.7 7 km WSW of Clifton, Idaho
  8. 1.5 8 km SW of Clifton, Idaho
  9. 1.9 6 km WSW of Clifton, Idaho
  10. 2.4 6 km SW of Clifton, Idaho
  11. 2.5 8 km SW of Clifton, Idaho
  12. 2.2 7 km SW of Clifton, Idaho
  13. 1.9 7 km SW of Clifton, Idaho
  14. 2.8 7 km SW of Clifton, Idaho
  15. 2.3 7 km WSW of Clifton, 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.