QuakeIndex

quarry blast · reviewed by a seismologist

M 1.8ml

6 km ESE of Daniel, Utah

· -2.0 km deep · released about 14 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Wasatch County 20 kmUtah County 45 kmSalt Lake County 54 kmSummit County 57 kmMorgan County 74 kmDuchesne County 80 kmDavis County 97 kmWeber County 102 kmCarbon County 108 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 1.8 (ml)
Depth
-2.0 km below the surface
Felt
no reports yet
Nearest
Wasatch County, 20 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 265 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 14 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,100,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 790,000× the energy of this one
  3. Around the size people start to feel M 3.0 70× the energy of this one
  4. This earthquake M 1.8 about 14 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 40.4455, -111.3500. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Wasatch County, UT 20 km (13 mi) NW of here earthquakes near Wasatch County
Utah County, UT 45 km (28 mi) NE of here earthquakes near Utah County
Salt Lake County, UT 54 km (34 mi) ESE of here earthquakes near Salt Lake County
Summit County, UT 57 km (36 mi) SW of here earthquakes near Summit County
Morgan County, UT 74 km (46 mi) SSE of here earthquakes near Morgan County
Duchesne County, UT 80 km (50 mi) WNW of here earthquakes near Duchesne County

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

Aftershocks so far

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

  1. 1.6 21 km W of Tabiona, Utah
  2. 1.6 8 km E of Independence, Utah
  3. 1.6 2 km ENE of Summit Park, Utah
  4. 1.6 19 km E of Independence, Utah
  5. 2.3 19 km E of Independence, Utah
  6. 2.4 19 km E of Independence, Utah
  7. 1.9 20 km E of Independence, Utah
  8. 1.8 5 km E of Heber City, Utah
  9. 2.1 5 km NW of Summit Park, Utah
  10. 1.9 26 km S of Independence, Utah
  11. 1.9 24 km SSE of Independence, Utah
  12. 2.4 24 km SSE of Independence, Utah
  13. 1.8 25 km SSE of Independence, Utah
  14. 2.2 25 km SSE of Independence, Utah
  15. 1.5 24 km SSE of Independence, 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.