QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8ml

Utah

· 20 km deep · released about 14 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Kane County 61 kmWashington County 99 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
20 km below the surface
Felt
no reports yet
Nearest
Kane County, 61 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1370 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 14 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 1,100,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 790,000× the energy of this one
  3. Around the size people start to feel M 3.0 70× the energy of this one
  4. This earthquake M 1.8 about 14 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 37.0037, -112.4157. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Kane County, UT 61 km (38 mi) WSW of here earthquakes near Kane County
Washington County, UT 99 km (62 mi) ESE of here earthquakes near Washington County
Garfield County, UT 125 km (78 mi) SW of here earthquakes near Garfield County
Iron County, UT 128 km (79 mi) SE of here earthquakes near Iron 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. 2.0 11 km SE of Fredonia, Arizona
  2. 2.9 14 km E of Fredonia, Arizona
  3. 1.7 17 km SW of Kaibab, Arizona
  4. 1.6 16 km S of Cane Beds, Arizona
  5. 2.3 9 km E of Springdale, Utah
  6. 1.5 9 km ENE of Hildale, Utah
  7. 1.9 18 km E of Fredonia, Arizona
  8. 1.5 17 km S of Cane Beds, Arizona
  9. 1.9 12 km NE of Hildale, Utah
  10. 1.6 9 km E of Springdale, Utah
  11. 1.8 12 km NE of Hildale, Utah
  12. 1.8 7 km SE of Fredonia, Arizona
  13. 3.3 13 km NE of Hildale, Utah
  14. 1.7 11 km ESE of Fredonia, Arizona
  15. 1.8 3 km ENE of Cane Beds, Arizona

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

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