QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1ml

27 km SW of Garden City, Texas

· 8.8 km deep · released about 43 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Glasscock County 25 kmMidland County 30 kmReagan County 41 kmUpton County 50 kmSterling County 64 kmHoward County 71 kmMartin County 71 kmCrane County 80 kmEctor County 81 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 2.1 (ml)
Depth
8.8 km below the surface
Felt
no reports yet
Nearest
Glasscock County, 25 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 304 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 43 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 350,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 250,000× the energy of this one
  3. Around the size people start to feel M 3.0 22× the energy of this one
  4. This earthquake M 2.1 about 43 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 31.7060, -101.7100. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Glasscock County, TX 25 km (16 mi) SW of here earthquakes near Glasscock County
Midland County, TX 30 km (19 mi) ESE of here earthquakes near Midland County
Reagan County, TX 41 km (26 mi) NNW of here earthquakes near Reagan County
Upton County, TX 50 km (31 mi) NE of here earthquakes near Upton County
Sterling County, TX 64 km (40 mi) WSW of here earthquakes near Sterling County
Howard County, TX 71 km (44 mi) SSW of here earthquakes near Howard County

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

Aftershocks so far

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

  1. 1.6 12 km WSW of Stanton, Texas
  2. 1.9 10 km S of Midland, Texas
  3. 2.9 11 km S of Forsan, Texas
  4. 1.5 13 km WSW of Stanton, Texas
  5. 1.5 4 km SE of Midland, Texas
  6. 1.8 11 km WSW of Stanton, Texas
  7. 1.9 9 km NNE of Garden City, Texas
  8. 2.1 22 km W of Garden City, Texas
  9. 1.8 10 km S of Forsan, Texas
  10. 1.6 13 km S of Forsan, Texas
  11. 1.5 11 km W of Forsan, Texas
  12. 1.5 10 km S of Forsan, Texas
  13. 2.4 11 km S of Forsan, Texas
  14. 1.8 14 km W of Stanton, Texas
  15. 2.5 11 km WSW of Stanton, 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.