QuakeIndex

Earthquake · reviewed by a seismologist

M 2.8ml

7 km NW of Circleville, Utah

· 4.8 km deep · released about 480 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Piute County 21 kmSevier County 73 kmBeaver County 81 kmGarfield County 88 kmIron County 93 kmMillard County 108 kmKane County 114 kmWayne County 116 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 2.8 (ml)
Depth
4.8 km below the surface
Felt
2 reports · strongest reported intensity IV
Nearest
Piute County, 21 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2115 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 2 people have reported feeling it to USGS.

How big was it?

This earthquake released about 480 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 32,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 22,000× the energy of this one
  3. Around the size people start to feel M 3.0 2× the energy of this one
  4. This earthquake M 2.8 about 480 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 38.2218, -112.3230. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Piute County, UT 21 km (13 mi) SW of here earthquakes near Piute County
Sevier County, UT 73 km (46 mi) SW of here earthquakes near Sevier County
Beaver County, UT 81 km (51 mi) E of here earthquakes near Beaver County
Garfield County, UT 88 km (55 mi) WNW of here earthquakes near Garfield County
Iron County, UT 93 km (58 mi) ENE of here earthquakes near Iron County
Millard County, UT 108 km (67 mi) SE of here earthquakes near Millard County

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

Aftershocks so far

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

  1. 1.6 13 km SSW of Beaver, Utah
  2. 1.6 8 km WNW of Marysvale, Utah
  3. 1.9 12 km N of Antimony, Utah
  4. 2.2 2 km NE of Beaver, Utah
  5. 1.7 7 km NW of Circleville, Utah
  6. 1.8 7 km SW of Marysvale, Utah
  7. 2.3 15 km W of Panguitch, Utah
  8. 2.1 19 km SSE of Minersville, Utah
  9. 1.5 20 km ENE of Milford, Utah
  10. 2.5 20 km N of Paragonah, Utah
  11. 1.7 17 km NE of Paragonah, Utah
  12. 1.6 9 km WSW of Beaver, Utah
  13. 1.6 9 km NNE of Beaver, Utah
  14. 2.1 7 km SW of Circleville, Utah
  15. 2.2 6 km SW of Circleville, 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.