QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8ml

25 km SW of Garden City, Texas

· 8.8 km deep · released about 15 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Glasscock County 23 kmMidland County 31 kmReagan County 42 kmUpton County 53 kmSterling County 61 kmHoward County 69 kmMartin County 70 kmIrion County 82 kmEctor County 82 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 1.8 (ml)
Depth
8.8 km below the surface
Felt
no reports yet
Nearest
Glasscock County, 23 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 18 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 15 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 710,000× the energy of this one
  3. Around the size people start to feel M 3.0 63× the energy of this one
  4. This earthquake M 1.8 about 15 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 31.7220, -101.6880. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Glasscock County, TX 23 km (14 mi) SW of here earthquakes near Glasscock County
Midland County, TX 31 km (20 mi) ESE of here earthquakes near Midland County
Reagan County, TX 42 km (26 mi) NNW of here earthquakes near Reagan County
Upton County, TX 53 km (33 mi) NE of here earthquakes near Upton County
Sterling County, TX 61 km (38 mi) WSW of here earthquakes near Sterling County
Howard County, TX 69 km (43 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

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

  1. 1.2 13 km S of Forsan, Texas
  2. 2.3 32 km SW of Garden City, Texas
  3. 1.9 22 km W of Garden City, Texas
  4. 0.1 32 km SW of Garden City, Texas
  5. 0.9 33 km SSE of Midland, Texas
  6. 0.7 25 km W of Garden City, Texas
  7. 0.9 6 km S of Midland, Texas
  8. 0.9 5 km S of Midland, Texas
  9. 1.0 32 km SW of Garden City, Texas
  10. 1.6 32 km SW of Garden City, Texas
  11. 2.3 32 km SW of Garden City, Texas
  12. 2.8 32 km SW of Garden City, Texas
  13. 1.1 32 km SW of Garden City, Texas
  14. 3.2 32 km SW of Garden City, Texas
  15. 2.7 31 km SW of Garden City, 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.