QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7ml

22 km SSW of Centennial Park, Arizona

· 21 km deep · released about 350 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Washington County 68 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 2.7 (ml)
Depth
21 km below the surface
Felt
no reports yet
Nearest
Washington County, 68 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2122 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

How big was it?

This earthquake released about 350 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 43,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 31,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.7× the energy of this one
  4. This earthquake M 2.7 about 350 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 36.7578, -113.0458. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Washington County, UT 68 km (43 mi) SE of here earthquakes near Washington County
Kane County, UT 123 km (77 mi) WSW of here earthquakes near Kane County
Mohave County, AZ 132 km (82 mi) NNE of here earthquakes near Mohave County
Coconino County, AZ 154 km (96 mi) NW of here earthquakes near Coconino County

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

Aftershocks so far

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

  1. 1.7 Arizona
  2. 1.9 12 km NE of Hildale, Utah
  3. 2.0 Utah
  4. 2.3 Arizona
  5. 1.8 9 km E of Springdale, Utah
  6. 2.0 2 km ESE of Springdale, Utah
  7. 1.9 4 km E of Springdale, Utah
  8. 1.6 4 km ESE of Springdale, Utah
  9. 1.5 13 km NE of Hildale, Utah
  10. 1.6 37 km S of Saint George, Utah
  11. 1.8 2 km ESE of Colorado City, Arizona
  12. 2.1 2 km ESE of Colorado City, Arizona
  13. 1.6 2 km ESE of Hildale, Utah
  14. 3.8 3 km ESE of Colorado City, Arizona
  15. 2.3 10 km SW of Centennial Park, 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

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