QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8ml

20 km ESE of Kanarraville, Utah

· 1.7 km deep · released about 15 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Washington County 48 kmIron County 59 kmBeaver County 104 kmKane County 105 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 1.8 (ml)
Depth
1.7 km below the surface
Felt
no reports yet
Nearest
Washington County, 48 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1724 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 15 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 730,000× the energy of this one
  3. Around the size people start to feel M 3.0 65× the energy of this one
  4. This earthquake M 1.8 about 15 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 37.4412, -112.9880. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Washington County, UT 48 km (30 mi) ENE of here earthquakes near Washington County
Iron County, UT 59 km (37 mi) SSE of here earthquakes near Iron County
Beaver County, UT 104 km (65 mi) SSE of here earthquakes near Beaver County
Kane County, UT 105 km (65 mi) W of here earthquakes near Kane County
Piute County, UT 125 km (78 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

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

  1. 1.7 13 km SSE of Kanarraville, Utah
  2. 1.8 9 km E of Springdale, Utah
  3. 1.9 6 km NNW of Enoch, Utah
  4. 1.7 4 km W of Summit, Utah
  5. 2.0 2 km ESE of Springdale, Utah
  6. 1.9 4 km E of Springdale, Utah
  7. 1.6 4 km ESE of Springdale, Utah
  8. 1.9 19 km W of Enoch, Utah
  9. 1.8 13 km S of Brian Head, Utah
  10. 2.2 15 km S of Brian Head, Utah
  11. 1.5 13 km NE of Hildale, Utah
  12. 2.5 9 km WNW of Enoch, Utah
  13. 1.6 6 km S of Summit, Utah
  14. 1.8 10 km SSE of Cedar City, Utah
  15. 1.9 7 km S of Summit, 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.