QuakeIndex

Earthquake · reviewed by a seismologist

M 3.7ml

15 km ENE of Wolf Creek, Utah

· 12 km deep · released about 4.8 tons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Weber County 23 kmMorgan County 34 kmCache County 39 kmRich County 43 kmDavis County 60 kmSummit County 81 kmSalt Lake County 83 kmFranklin County 88 kmUinta County 92 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 3.7 (ml)
Depth
12 km below the surface
Felt
853 reports · strongest reported intensity III
Measured shaking
intensity IV (ShakeMap)
Nearest
Weber County, 23 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 266 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 853 people have reported feeling it to USGS.

How big was it?

This earthquake released about 4.8 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.7 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 35,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 1,600× the energy of this one
  3. Magna, Utah 2020 M 5.7 1,100× the energy of this one
  4. This earthquake M 3.7 about 4.8 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 10× 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 41.3888, -111.6508. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Weber County, UT 23 km (14 mi) NE of here earthquakes near Weber County
Morgan County, UT 34 km (21 mi) N of here earthquakes near Morgan County
Cache County, UT 39 km (24 mi) SSE of here earthquakes near Cache County
Rich County, UT 43 km (27 mi) SW of here earthquakes near Rich County
Davis County, UT 60 km (38 mi) NE of here earthquakes near Davis County
Summit County, UT 81 km (50 mi) NW of here earthquakes near Summit County

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

Aftershocks so far

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

  1. 1.6 17 km E of North Logan, Utah
  2. 1.7 8 km SSW of Randolph, Utah
  3. 2.1 8 km SSW of Randolph, Utah
  4. 1.9 14 km ENE of Huntsville, Utah
  5. 1.6 15 km E of Providence, Utah
  6. 1.6 13 km ESE of Millville, Utah
  7. 1.9 16 km E of Providence, Utah
  8. 2.0 12 km E of Millville, Utah
  9. 2.6 12 km E of Millville, Utah
  10. 2.0 Utah
  11. 1.5 9 km ENE of Avon, Utah
  12. 2.1 3 km WNW of Huntsville, Utah
  13. 1.5 10 km ENE of Mountain Green, Utah
  14. 1.6 6 km SW of Corinne, Utah
  15. 1.6 18 km N of Henefer, 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.