QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8md

15 km SSW of Clear Creek, Utah

· 7.2 km deep · released about 14 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Sanpete County 36 kmCarbon County 55 kmEmery County 69 kmUtah County 79 kmWasatch County 92 kmSevier County 100 kmDuchesne 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 (md)
Depth
7.2 km below the surface
Felt
no reports yet
Nearest
Sanpete County, 36 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2785 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 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 5.7 760,000× the energy of this one
  3. Around the size people start to feel M 3.0 68× 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 39.5112, -111.1912. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Sanpete County, UT 36 km (23 mi) ENE of here earthquakes near Sanpete County
Carbon County, UT 55 km (34 mi) WSW of here earthquakes near Carbon County
Emery County, UT 69 km (43 mi) NW of here earthquakes near Emery County
Utah County, UT 79 km (49 mi) SSE of here earthquakes near Utah County
Wasatch County, UT 92 km (57 mi) S of here earthquakes near Wasatch County
Sevier County, UT 100 km (62 mi) NNE of here earthquakes near Sevier County

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

Aftershocks so far

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

  1. 1.8 9 km WNW of Hiawatha, Utah
  2. 2.1 10 km SSW of Hiawatha, Utah
  3. 1.6 7 km E of Kenilworth, Utah
  4. 1.9 11 km SSW of Hiawatha, Utah
  5. 1.6 11 km SSW of Hiawatha, Utah
  6. 1.8 11 km SSW of Hiawatha, Utah
  7. 1.6 9 km NW of Helper, Utah
  8. 1.9 Utah
  9. 1.9 11 km SSW of Hiawatha, Utah
  10. 1.6 10 km SSW of Hiawatha, Utah
  11. 1.7 11 km SSW of Hiawatha, Utah
  12. 1.6 17 km ESE of Spring City, Utah
  13. 1.8 3 km NNW of Kenilworth, Utah
  14. 1.6 4 km N of Kenilworth, Utah
  15. 1.9 20 km SE of Mount Pleasant, 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.