QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3ml

14 km SW of Antimony, Utah

· 11 km deep · released about 82 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Piute County 36 kmGarfield County 61 kmSevier County 85 kmKane County 86 kmWayne County 101 kmIron County 106 kmBeaver 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 2.3 (ml)
Depth
11 km below the surface
Felt
no reports yet
Nearest
Piute County, 36 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2269 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 82 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 180,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 130,000× the energy of this one
  3. Around the size people start to feel M 3.0 12× the energy of this one
  4. This earthquake M 2.3 about 82 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 38.0153, -112.1013. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Piute County, UT 36 km (22 mi) S of here earthquakes near Piute County
Garfield County, UT 61 km (38 mi) WNW of here earthquakes near Garfield County
Sevier County, UT 85 km (53 mi) SSW of here earthquakes near Sevier County
Kane County, UT 86 km (53 mi) NNW of here earthquakes near Kane County
Wayne County, UT 101 km (63 mi) WSW of here earthquakes near Wayne County
Iron County, UT 106 km (66 mi) E of here earthquakes near Iron County

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

Aftershocks so far

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

  1. 1.7 7 km NW of Circleville, Utah
  2. 1.8 7 km SW of Marysvale, Utah
  3. 2.2 14 km W of Panguitch, Utah
  4. 2.3 15 km W of Panguitch, Utah
  5. 2.3 15 km W of Panguitch, Utah
  6. 2.0 9 km NNW of Hatch, Utah
  7. 1.6 4 km N of Hatch, Utah
  8. 1.7 17 km NE of Paragonah, Utah
  9. 2.1 7 km SW of Circleville, Utah
  10. 2.2 6 km SW of Circleville, Utah
  11. 1.6 8 km SE of Marysvale, Utah
  12. 1.6 12 km WSW of Circleville, Utah
  13. 2.2 7 km SW of Circleville, Utah
  14. 2.1 5 km WNW of Panguitch, Utah
  15. 1.9 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.