QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5ml

25 km E of Forsan, Texas

· 3.3 km deep · released about 170 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Mitchell County 28 kmSterling County 30 kmHoward County 39 kmGlasscock County 48 kmCoke County 50 kmNolan County 68 kmScurry County 73 kmBorden County 78 kmMartin County 84 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 2.5 (ml)
Depth
3.3 km below the surface
Felt
no reports yet
Nearest
Mitchell County, 28 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 912 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

How big was it?

This earthquake released about 170 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 89,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 63,000× the energy of this one
  3. Around the size people start to feel M 3.0 5.6× the energy of this one
  4. This earthquake M 2.5 about 170 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 32.1030, -101.0990. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mitchell County, TX 28 km (17 mi) SW of here earthquakes near Mitchell County
Sterling County, TX 30 km (19 mi) N of here earthquakes near Sterling County
Howard County, TX 39 km (24 mi) SE of here earthquakes near Howard County
Glasscock County, TX 48 km (30 mi) ENE of here earthquakes near Glasscock County
Coke County, TX 50 km (31 mi) WNW of here earthquakes near Coke County
Nolan County, TX 68 km (42 mi) WSW of here earthquakes near Nolan County

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

Aftershocks so far

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

  1. 2.5 24 km SSW of Westbrook, Texas
  2. 1.5 11 km S of Forsan, Texas
  3. 2.4 15 km N of Big Spring, Texas
  4. 1.9 23 km S of Westbrook, Texas
  5. 1.5 27 km S of Westbrook, Texas
  6. 1.6 24 km SSW of Westbrook, Texas
  7. 1.6 25 km E of Forsan, Texas
  8. 2.1 6 km SW of Westbrook, Texas
  9. 2.5 6 km SSW of Westbrook, Texas
  10. 2.1 5 km SSW of Westbrook, Texas
  11. 1.6 6 km SSW of Westbrook, Texas
  12. 1.7 6 km SSW of Westbrook, Texas
  13. 2.0 23 km ENE of Forsan, Texas
  14. 2.5 23 km SSW of Westbrook, Texas
  15. 2.3 23 km SE of Coahoma, 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.