QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3mb_lg

Earthquake near Irving, TX

No earthquake was likely felt in Irving in the 24 hours to 1:59 pm CST (19:59 UTC). The last one was M 5.0, 504 km (313 mi) NW, at 5:21 am CDT on 23 July 2026, estimated intensity III (weak) in town; 499 felt reports to USGS. Every earthquake near Irving

This page: a magnitude 2.3 earthquake was recorded 6 km (4 mi) north-northeast of Irving, TX, at 1:33 am CDT on 9 August 2020 (06:33 UTC), 6.0 km deep. 97 people have reported feeling it to USGS.

USGS: 6 km NNE of Irving, Texas

16 km (10 mi) WNW of Dallas, TX · 5 km (3 mi) E of Irving, TX

1:33 am CDT, Aug 9, 2020 · · 6.0 km deep · released about 85 lb of TNT

10 km30 km60 km120 km N Dallas County 17 kmTarrant County 37 kmDenton County 42 kmRockwall County 47 kmCollin County 48 kmEllis County 59 kmKaufman County 66 kmJohnson County 68 kmWise 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
1:33 am CDT on 9 August 2020 ()
Where
6 km (4 mi) north-northeast of Irving, TX · earthquakes near Irving
Texas today
every earthquake in Texas in the last 24 hours
Magnitude
M 2.3 (mb_lg)
Depth
6.0 km below the surface
Felt
97 reports · strongest reported intensity V
Nearest
Dallas County, 17 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1842 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 37 km (23 mi) from the epicentre. In Irving, 6 km away, the estimate is intensity III (weak). 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: Farmers Branch, Carrollton, Addison, Dallas, Coppell, Grand Prairie.

How big was it?

This earthquake released about 85 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 180,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 130,000× the energy of this one
  3. Around the size people start to feel M 3.0 11× the energy of this one
  4. This earthquake M 2.3 about 85 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 32.8648, -96.9154. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Dallas County, TX 17 km (10 mi) SE earthquakes near Dallas County
Tarrant County, TX 37 km (23 mi) WSW earthquakes near Tarrant County
Denton County, TX 42 km (26 mi) NNW earthquakes near Denton County
Rockwall County, TX 47 km (29 mi) E earthquakes near Rockwall County
Collin County, TX 48 km (30 mi) NE earthquakes near Collin County
Ellis County, TX 59 km (36 mi) S earthquakes near Ellis County

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

Aftershocks so far

10 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. 1.7 1 km N of Justin, Texas
  6. 2.0 4 km SSE of Haslet, Texas
  7. 2.3 1 km NW of Northlake, Texas
  8. 1.5 5 km NNE of Irving, Texas
  9. 2.3 7 km S of Mansfield, Texas
  10. 1.8 0 km S of Lake Dallas, 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.