QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

19 km SE of Spring City, Utah

· 19 km deep · released about 25 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Sanpete County 23 kmEmery County 66 kmCarbon County 70 kmSevier County 83 kmUtah County 87 kmWasatch County 106 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 1.9 (ml)
Depth
19 km below the surface
Felt
no reports yet
Nearest
Sanpete County, 23 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1370 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 25 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 620,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 440,000× the energy of this one
  3. Around the size people start to feel M 3.0 39× the energy of this one
  4. This earthquake M 1.9 about 25 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 39.3868, -111.3128. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Sanpete County, UT 23 km (14 mi) E of here earthquakes near Sanpete County
Emery County, UT 66 km (41 mi) NW of here earthquakes near Emery County
Carbon County, UT 70 km (43 mi) WSW of here earthquakes near Carbon County
Sevier County, UT 83 km (52 mi) NNE of here earthquakes near Sevier County
Utah County, UT 87 km (54 mi) SSE of here earthquakes near Utah County
Wasatch County, UT 106 km (66 mi) S of here earthquakes near Wasatch County

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

Aftershocks so far

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

  1. 1.8 9 km NNE of Fayette, Utah
  2. 1.5 18 km E of Mayfield, Utah
  3. 1.6 19 km E of Mayfield, Utah
  4. 1.8 6 km SW of Hiawatha, Utah
  5. 2.8 18 km ESE of Mayfield, Utah
  6. 2.4 18 km ESE of Mayfield, Utah
  7. 3.4 17 km ESE of Mayfield, Utah
  8. 1.7 12 km WNW of Emery, Utah
  9. 1.9 21 km E of Mayfield, Utah
  10. 2.2 10 km ESE of Fairview, Utah
  11. 1.5 16 km ESE of Castle Dale, Utah
  12. 1.9 21 km E of Mayfield, Utah
  13. 1.6 15 km N of Fayette, Utah
  14. 1.6 18 km W of Hiawatha, Utah
  15. 1.9 19 km W of Hiawatha, 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.