QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2ml

5 km S of Farmers Branch, Texas

· 8.8 km deep · released about 60 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Dallas County 17 kmTarrant County 38 kmDenton County 42 kmRockwall County 46 kmCollin County 46 kmEllis County 60 kmKaufman County 65 kmJohnson County 70 kmWise County 80 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 2.2 (ml)
Depth
8.8 km below the surface
Felt
no reports yet
Nearest
Dallas County, 17 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 151 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 60 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.2 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 250,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 180,000× the energy of this one
  3. Around the size people start to feel M 3.0 16× the energy of this one
  4. This earthquake M 2.2 about 60 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 32.8790, -96.9020. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Dallas County, TX 17 km (11 mi) NW of here earthquakes near Dallas County
Tarrant County, TX 38 km (24 mi) ENE of here earthquakes near Tarrant County
Denton County, TX 42 km (26 mi) SSE of here earthquakes near Denton County
Rockwall County, TX 46 km (28 mi) W of here earthquakes near Rockwall County
Collin County, TX 46 km (29 mi) SW of here earthquakes near Collin County
Ellis County, TX 60 km (37 mi) N of here earthquakes near Ellis County

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

Aftershocks so far

1 earthquake has been recorded within 50 km since this one.

  1. 1.8 6 km SSE of Farmers Branch, 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.