QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

18 km N of Henefer, Utah

· 7.2 km deep · released about 8.7 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Morgan County 11 kmWeber County 31 kmRich County 55 kmSummit County 58 kmDavis County 59 kmCache County 64 kmSalt Lake County 66 kmUinta County 82 kmWasatch County 99 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 1.6 (ml)
Depth
7.2 km below the surface
Felt
no reports yet
Nearest
Morgan County, 11 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 207 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 8.7 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,700,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,200,000× the energy of this one
  3. Around the size people start to feel M 3.0 110× the energy of this one
  4. This earthquake M 1.6 about 8.7 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 41.1840, -111.5267. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Morgan County, UT 11 km (7 mi) NNE of here earthquakes near Morgan County
Weber County, UT 31 km (19 mi) ESE of here earthquakes near Weber County
Rich County, UT 55 km (34 mi) SSW of here earthquakes near Rich County
Summit County, UT 58 km (36 mi) NW of here earthquakes near Summit County
Davis County, UT 59 km (37 mi) ENE of here earthquakes near Davis County
Cache County, UT 64 km (40 mi) SSE of here earthquakes near Cache County

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

Aftershocks so far

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

  1. 1.6 2 km ENE of Summit Park, Utah
  2. 1.9 14 km ENE of Huntsville, Utah
  3. 2.1 5 km NW of Summit Park, Utah
  4. 1.5 9 km ENE of Avon, Utah
  5. 2.1 3 km WNW of Huntsville, Utah
  6. 1.5 10 km ENE of Mountain Green, 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.