QuakeIndex

Earthquake · reviewed by a seismologist

M 2.9ml

5 km SSE of Gardendale, Texas

· 8.5 km deep · released about 680 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Ector County 22 kmMidland County 37 kmAndrews County 46 kmMartin County 52 kmCrane County 63 kmWinkler County 68 kmUpton County 75 kmGlasscock County 79 kmWard County 88 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 2.9 (ml)
Depth
8.5 km below the surface
Felt
17 reports · strongest reported intensity IV
Nearest
Ector County, 22 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1583 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 17 people have reported feeling it to USGS.

How big was it?

This earthquake released about 680 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 22,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 16,000× the energy of this one
  3. Around the size people start to feel M 3.0 1.4× the energy of this one
  4. This earthquake M 2.9 about 680 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 31.9748, -102.3508. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Ector County, TX 22 km (14 mi) NE of here earthquakes near Ector County
Midland County, TX 37 km (23 mi) WNW of here earthquakes near Midland County
Andrews County, TX 46 km (29 mi) SE of here earthquakes near Andrews County
Martin County, TX 52 km (32 mi) SW of here earthquakes near Martin County
Crane County, TX 63 km (39 mi) NNE of here earthquakes near Crane County
Winkler County, TX 68 km (42 mi) ENE of here earthquakes near Winkler County

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

Aftershocks so far

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

  1. 1.9 20 km NNW of Midland, Texas
  2. 1.6 3 km SE of Gardendale, Texas
  3. 2.4 western Texas
  4. 1.9 8 km SE of Gardendale, Texas
  5. 2.0 27 km NE of Crane, Texas
  6. 1.9 35 km NE of Crane, Texas
  7. 2.4 12 km NNW of Midland, Texas
  8. 2.0 western Texas
  9. 1.9 16 km NNW of Midland, Texas
  10. 2.0 4 km SW of Midland, Texas
  11. 1.5 10 km SE of Gardendale, Texas
  12. 2.3 16 km SW of McKinney Acres, Texas
  13. 2.0 9 km SSE of Midland, Texas
  14. 1.9 24 km N of Midland, Texas
  15. 1.5 5 km S of Gardendale, 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.