QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2ml

1 km ENE of Flatonia, Texas

· 7.5 km deep · released about 60 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Fayette County 26 kmLavaca County 39 kmGonzales County 46 kmBastrop County 50 kmCaldwell County 54 kmColorado County 58 kmLee County 70 kmDeWitt County 73 kmAustin 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 2.2 (ml)
Depth
7.5 km below the surface
Felt
no reports yet
Nearest
Fayette County, 26 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 452 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 60 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.2 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 250,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 180,000× the energy of this one
  3. Around the size people start to feel M 3.0 16× the energy of this one
  4. This earthquake M 2.2 about 60 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 29.6960, -97.0940. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Fayette County, TX 26 km (16 mi) SW of here earthquakes near Fayette County
Lavaca County, TX 39 km (24 mi) NNW of here earthquakes near Lavaca County
Gonzales County, TX 46 km (29 mi) NE of here earthquakes near Gonzales County
Bastrop County, TX 50 km (31 mi) SSE of here earthquakes near Bastrop County
Caldwell County, TX 54 km (33 mi) ESE of here earthquakes near Caldwell County
Colorado County, TX 58 km (36 mi) W of here earthquakes near Colorado County

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

Aftershocks so far

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

  1. 1.8 9 km ENE of Gonzales, Texas
  2. 2.1 18 km SSE of Gonzales, Texas
  3. 1.9 18 km SSE of Gonzales, Texas
  4. 2.2 17 km SSE of Gonzales, Texas
  5. 2.2 15 km SSE of Gonzales, Texas
  6. 1.9 17 km SSE of Gonzales, Texas
  7. 2.6 17 km SSE of Gonzales, Texas
  8. 2.5 17 km SSE of Gonzales, Texas
  9. 1.9 18 km SSE of Gonzales, Texas
  10. 1.9 17 km SSE of Gonzales, Texas
  11. 2.5 17 km SSE of Gonzales, Texas
  12. 2.2 18 km SSE of Gonzales, Texas
  13. 1.9 10 km W of Shiner, Texas
  14. 2.3 11 km W of Shiner, Texas
  15. 1.7 10 km W of Shiner, 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.