QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

17 km ESE of Rocky Ridge, Utah

· 7.7 km deep · released about 25 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Utah County 31 kmSanpete County 53 kmWasatch County 68 kmCarbon County 92 kmSalt Lake County 95 kmJuab County 99 kmDuchesne 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 1.9 (ml)
Depth
7.7 km below the surface
Felt
no reports yet
Nearest
Utah County, 31 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 146 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 3.0 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 600,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 420,000× the energy of this one
  3. Around the size people start to feel M 3.0 38× 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 39.8447, -111.6452. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Utah County, UT 31 km (19 mi) S of here earthquakes near Utah County
Sanpete County, UT 53 km (33 mi) N of here earthquakes near Sanpete County
Wasatch County, UT 68 km (42 mi) SW of here earthquakes near Wasatch County
Carbon County, UT 92 km (57 mi) WNW of here earthquakes near Carbon County
Salt Lake County, UT 95 km (59 mi) SSE of here earthquakes near Salt Lake County
Juab County, UT 99 km (61 mi) E of here earthquakes near Juab 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 5 km E of Mount Pleasant, Utah
  2. 1.8 3 km SSE of Mount Pleasant, Utah
  3. 2.4 4 km WSW of Clear Creek, 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.