QuakeIndex

quarry blast · reviewed by a seismologist

M 1.7ml

62 km W of Hooper, Utah

· 0.0 km deep · released about 11 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Box Elder County 56 kmDavis County 57 kmTooele County 77 kmWeber County 84 kmSalt Lake County 95 kmMorgan County 108 kmCache 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 1.7 (ml)
Depth
0.0 km below the surface
Felt
no reports yet
Nearest
Box Elder County, 56 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 71 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

USGS catalogues this as quarry blast, not an earthquake.

How big was it?

This earthquake released about 11 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,400,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,000,000× the energy of this one
  3. Around the size people start to feel M 3.0 89× the energy of this one
  4. This earthquake M 1.7 about 11 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 41.1360, -112.8667. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Box Elder County, UT 56 km (35 mi) SSE of here earthquakes near Box Elder County
Davis County, UT 57 km (35 mi) WNW of here earthquakes near Davis County
Tooele County, UT 77 km (48 mi) NNE of here earthquakes near Tooele County
Weber County, UT 84 km (52 mi) W of here earthquakes near Weber County
Salt Lake County, UT 95 km (59 mi) WNW of here earthquakes near Salt Lake County
Morgan County, UT 108 km (67 mi) W of here earthquakes near Morgan County

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

Aftershocks so far

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

  1. 2.3 66 km W of Hooper, Utah
  2. 1.7 64 km W of Hooper, Utah
  3. 2.2 65 km W of Hooper, 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.