QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7ml

Earthquake near Justin, TX

No earthquake was likely felt in Justin in the 24 hours to 11:36 am CST (17:36 UTC). The last one was M 3.3, 217 km (135 mi) N, at 4:17 am CDT on 4 September 2026, estimated intensity II (weak) in town; 33 felt reports to USGS. Every earthquake near Justin

This page: a magnitude 1.7 earthquake was recorded in Justin, TX, at 10:24 pm CDT on 20 March 2024 (03:24 UTC), 3.5 km deep.

USGS: 1 km N of Justin, Texas

36 km (22 mi) N of Fort Worth, TX · 18 km (11 mi) WNW of Flower Mound, TX

10:24 pm CDT, Mar 20, 2024 · · 3.5 km deep · released about 11 lb of TNT

10 km30 km60 km120 km N Denton County 20 kmWise County 36 kmTarrant County 37 kmParker County 60 kmCooke County 60 kmDallas County 61 kmCollin County 68 kmMontague County 76 kmJohnson 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
10:24 pm CDT on 20 March 2024 ()
Where
in Justin, TX · earthquakes near Justin
Texas today
every earthquake in Texas in the last 24 hours
Magnitude
M 1.7 (ml)
Depth
3.5 km below the surface
Felt
no reports yet
Nearest
Denton County, 20 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 605 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth, people at rest would likely notice it out to about 12 km (7 mi) from the epicentre. Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

Earthquakes near other towns within 30 km: Northlake, Ponder, Argyle, Roanoke, New Fairview, Haslet.

How big was it?

This earthquake released about 11 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,400,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,000,000× the energy of this one
  3. Around the size people start to feel M 3.0 89× the energy of this one
  4. This earthquake M 1.7 about 11 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.

For this area

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

Before 2016, the USGS record since 1900 lists no earthquake of M5 or more within 50 km.

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Epicentre 33.1010, -97.2960. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Denton County, TX 20 km (12 mi) NE earthquakes near Denton County
Wise County, TX 36 km (22 mi) WNW earthquakes near Wise County
Tarrant County, TX 37 km (23 mi) S earthquakes near Tarrant County
Parker County, TX 60 km (37 mi) SW earthquakes near Parker County
Cooke County, TX 60 km (38 mi) N earthquakes near Cooke County
Dallas County, TX 61 km (38 mi) SE earthquakes near Dallas County

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

Aftershocks so far

3 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. 1.8 4 km SSE of Chico, 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.