QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1ml

11 km ENE of Kanarraville, Utah

· 12 km deep · released about 49 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Iron County 44 kmWashington County 51 kmBeaver County 90 kmKane County 114 kmPiute 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 2.1 (ml)
Depth
12 km below the surface
Felt
no reports yet
Nearest
Iron County, 44 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 831 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 49 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 310,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 220,000× the energy of this one
  3. Around the size people start to feel M 3.0 19× the energy of this one
  4. This earthquake M 2.1 about 49 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 37.5628, -113.0557. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Iron County, UT 44 km (28 mi) SSE of here earthquakes near Iron County
Washington County, UT 51 km (32 mi) NE of here earthquakes near Washington County
Beaver County, UT 90 km (56 mi) S of here earthquakes near Beaver County
Kane County, UT 114 km (71 mi) WNW of here earthquakes near Kane County
Piute County, UT 118 km (73 mi) SW of here earthquakes near Piute County

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

Aftershocks so far

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

  1. 2.5 9 km S of Cedar City, Utah
  2. 1.8 3 km NE of Cedar City, Utah
  3. 1.7 5 km SE of Springdale, Utah
  4. 1.6 5 km N of Cedar City, Utah
  5. 1.5 13 km WNW of Cedar City, Utah
  6. 1.7 16 km W of Cedar City, Utah
  7. 1.8 9 km NW of Enoch, Utah
  8. 1.9 9 km WNW of Enoch, Utah
  9. 1.6 9 km NW of Enoch, Utah
  10. 1.6 5 km N of Cedar City, Utah
  11. 2.3 9 km E of Springdale, Utah
  12. 1.7 9 km NNW of Kanarraville, Utah
  13. 1.7 11 km E of Kanarraville, Utah
  14. 2.4 13 km SSE of Kanarraville, Utah
  15. 2.4 13 km SSE of Kanarraville, 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.