QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8ml

7 km S of Mansfield, Texas

· 7.0 km deep · released about 15 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Johnson County 24 kmTarrant County 33 kmEllis County 37 kmDallas County 46 kmHill County 57 kmHood County 64 kmSomervell County 66 kmParker County 69 kmDenton 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 1.8 (ml)
Depth
7.0 km below the surface
Felt
no reports yet
Nearest
Johnson County, 24 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 542 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 5.7 710,000× the energy of this one
  3. Around the size people start to feel M 3.0 63× 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 32.4950, -97.1520. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Johnson County, TX 24 km (15 mi) ENE of here earthquakes near Johnson County
Tarrant County, TX 33 km (21 mi) SSE of here earthquakes near Tarrant County
Ellis County, TX 37 km (23 mi) WNW of here earthquakes near Ellis County
Dallas County, TX 46 km (29 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 64 km (40 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. 1.8 6 km SSE of Farmers Branch, Texas
  2. 2.2 5 km S of Farmers Branch, Texas
  3. 3.1 7 km SSW of Mansfield, Texas
  4. 3.2 7 km S of Mansfield, Texas
  5. 1.5 5 km NNE of Irving, Texas
  6. 2.3 7 km S of Mansfield, Texas
  7. 1.8 5 km N of Itasca, Texas
  8. 2.3 6 km NNE of Irving, Texas
  9. 1.6 5 km SSW of Farmers Branch, Texas
  10. 1.6 6 km N of Itasca, Texas
  11. 1.5 5 km S of Grandview, Texas
  12. 2.4 2 km SSW of Joshua, 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.