QuakeIndex

Earthquake · reviewed by a seismologist

M 3.3ml

28 km SW of Garden City, Texas

· 9.4 km deep · released about 1.3 tons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Glasscock County 26 kmMidland County 31 kmReagan County 41 kmUpton County 50 kmSterling County 63 kmHoward County 72 kmMartin County 72 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 3.3 (ml)
Depth
9.4 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Glasscock County, 26 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 694 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 1 person has reported feeling it to USGS.

How big was it?

This earthquake released about 1.3 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.3 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 130,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 5,600× the energy of this one
  3. Magna, Utah 2020 M 5.7 4,000× the energy of this one
  4. This earthquake M 3.3 about 1.3 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 2.8× more

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 31.7010, -101.7070. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Glasscock County, TX 26 km (16 mi) SW of here earthquakes near Glasscock County
Midland County, TX 31 km (19 mi) ESE of here earthquakes near Midland County
Reagan County, TX 41 km (25 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 63 km (39 mi) WSW of here earthquakes near Sterling County
Howard County, TX 72 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

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

  1. 1.5 11 km S of Forsan, Texas
  2. 2.3 31 km SSE of Midland, Texas
  3. 1.5 7 km SE of Midland, Texas
  4. 1.5 22 km W of Garden City, Texas
  5. 1.6 25 km SSE of Midland, Texas
  6. 1.6 38 km SE of Odessa, Texas
  7. 1.6 30 km SSE of Midland, Texas
  8. 1.6 25 km NE of Crane, Texas
  9. 1.6 5 km SSE of Midland, Texas
  10. 1.5 5 km SSE of Midland, Texas
  11. 1.5 12 km S of Forsan, Texas
  12. 2.0 7 km SE of Midland, Texas
  13. 1.5 13 km NW of Garden City, Texas
  14. 1.5 14 km SSE of Stanton, Texas
  15. 1.9 11 km SSW of Forsan, 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.