QuakeIndex

Earthquake · reviewed by a seismologist

M 3.2mb_lg

8 km SSW of Mansfield, Texas

· 5.0 km deep · released about 1,900 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Johnson County 22 kmTarrant County 33 kmEllis County 39 kmDallas County 48 kmHill County 57 kmHood County 62 kmSomervell County 64 kmParker County 67 kmBosque County 79 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 3.2 (mb_lg)
Depth
5.0 km below the surface
Felt
149 reports · strongest reported intensity V
Nearest
Johnson County, 22 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 879 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 149 people have reported feeling it to USGS.

How big was it?

This earthquake released about 1,900 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.2 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 180,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 7,900× the energy of this one
  3. Magna, Utah 2020 M 5.7 5,600× the energy of this one
  4. This earthquake M 3.2 about 1,900 lb of TNT
  5. Around the size people start to feel M 3.0 this one released 2× more

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 32.4911, -97.1714. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Johnson County, TX 22 km (14 mi) NE of here earthquakes near Johnson County
Tarrant County, TX 33 km (21 mi) SSE of here earthquakes near Tarrant County
Ellis County, TX 39 km (24 mi) WNW of here earthquakes near Ellis County
Dallas County, TX 48 km (30 mi) SW of here earthquakes near Dallas County
Hill County, TX 57 km (35 mi) N of here earthquakes near Hill County
Hood County, TX 62 km (39 mi) E of here earthquakes near Hood County

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

Aftershocks so far

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

  1. 2.2 5 km S of Farmers Branch, Texas
  2. 3.1 7 km SSW of Mansfield, Texas
  3. 3.2 7 km S of Mansfield, Texas
  4. 1.5 5 km NNE of Irving, Texas
  5. 2.3 7 km S of Mansfield, Texas
  6. 1.8 5 km N of Itasca, Texas
  7. 2.3 6 km NNE of Irving, Texas
  8. 1.6 5 km SSW of Farmers Branch, Texas
  9. 1.6 6 km N of Itasca, Texas
  10. 1.5 5 km S of Grandview, Texas
  11. 2.4 2 km SSW of Joshua, Texas
  12. 1.8 7 km S of Mansfield, Texas

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.