QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9md

18 km E of Fredonia, Arizona

· 22 km deep · released about 19 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Kane County 58 kmWashington County 109 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 1.9 (md)
Depth
22 km below the surface
Felt
1 report · strongest reported intensity I
Nearest
Kane County, 58 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 675 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 1 person has reported feeling it to USGS.

How big was it?

This earthquake released about 19 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 810,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 580,000× the energy of this one
  3. Around the size people start to feel M 3.0 51× the energy of this one
  4. This earthquake M 1.9 about 19 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 36.9418, -112.3232. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Kane County, UT 58 km (36 mi) SW of here earthquakes near Kane County
Washington County, UT 109 km (68 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 138 km (86 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

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

  1. 1.5 8 km ENE of Hildale, Utah
  2. 1.6 8 km NNE of Cane Beds, Arizona
  3. 1.9 8 km NNE of Cane Beds, Arizona
  4. 1.7 8 km NNE of Cane Beds, Arizona
  5. 1.6 8 km NNE of Cane Beds, Arizona
  6. 1.3 10 km NNE of Cane Beds, Arizona
  7. 1.8 35 km WSW of Big Water, Utah
  8. 2.2 7 km WNW of Kanab, Utah
  9. 2.6 11 km NE of Hildale, Utah
  10. 1.9 11 km SSW of Kaibab, Arizona
  11. 1.7 13 km E of Glendale, Utah
  12. 1.9 27 km NNW of Bitter Springs, Arizona
  13. 1.7 22 km SW of Big Water, Utah
  14. 1.8 18 km ESE of Fredonia, Arizona
  15. 2.8 22 km SW of Big Water, 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.