QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5md

21 km SW of Circleville, Utah

· 1.8 km deep · released about 5.9 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Piute County 43 kmIron County 77 kmBeaver County 78 kmGarfield County 90 kmSevier County 96 kmKane County 102 kmMillard County 118 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 1.5 (md)
Depth
1.8 km below the surface
Felt
no reports yet
Nearest
Piute County, 43 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 578 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 5.9 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,500,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,800,000× the energy of this one
  3. Around the size people start to feel M 3.0 160× the energy of this one
  4. This earthquake M 1.5 about 5.9 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 38.0405, -112.4440. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Piute County, UT 43 km (27 mi) SW of here earthquakes near Piute County
Iron County, UT 77 km (48 mi) E of here earthquakes near Iron County
Beaver County, UT 78 km (48 mi) ESE of here earthquakes near Beaver County
Garfield County, UT 90 km (56 mi) WNW of here earthquakes near Garfield County
Sevier County, UT 96 km (60 mi) SW of here earthquakes near Sevier County
Kane County, UT 102 km (63 mi) NNW of here earthquakes near Kane County

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

Aftershocks so far

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

  1. 3.0 20 km ENE of Panguitch, Utah
  2. 1.6 20 km ENE of Panguitch, Utah
  3. 2.0 20 km ENE of Panguitch, Utah
  4. 2.1 19 km ENE of Panguitch, Utah
  5. 3.0 19 km ENE of Panguitch, Utah
  6. 1.7 16 km NW of Parowan, Utah
  7. 1.7 15 km WSW of Panguitch, Utah
  8. 1.9 8 km W of Junction, Utah
  9. 1.7 9 km NW of Panguitch, Utah
  10. 2.2 8 km ENE of Beaver, Utah
  11. 2.7 8 km ENE of Beaver, Utah
  12. 1.6 7 km ENE of Beaver, Utah
  13. 2.1 8 km ENE of Beaver, Utah
  14. 1.9 19 km NNE of Paragonah, Utah
  15. 2.0 8 km WNW of Panguitch, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.4 on 2020-10-03 — it released about 22,000 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.