QuakeIndex

Earthquake · reviewed by a seismologist

M 3.0ml

18 km S of Gonzales, Texas

· 3.4 km deep · released about 950 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Gonzales County 15 kmDeWitt County 29 kmLavaca County 50 kmGuadalupe County 56 kmCaldwell County 58 kmKarnes County 62 kmWilson County 65 kmGoliad County 75 kmVictoria County 75 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 3.0 (ml)
Depth
3.4 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Gonzales County, 15 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 452 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 950 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.0 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 350,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 16,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 11,000× the energy of this one
  4. This earthquake M 3.0 about 950 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 29.3350, -97.4410. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Gonzales County, TX 15 km (9 mi) SSE of here earthquakes near Gonzales County
DeWitt County, TX 29 km (18 mi) NNW of here earthquakes near DeWitt County
Lavaca County, TX 50 km (31 mi) W of here earthquakes near Lavaca County
Guadalupe County, TX 56 km (35 mi) ESE of here earthquakes near Guadalupe County
Caldwell County, TX 58 km (36 mi) SSE of here earthquakes near Caldwell County
Karnes County, TX 62 km (39 mi) NE of here earthquakes near Karnes County

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

Aftershocks so far

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

  1. 2.6 20 km ENE of Falls City, Texas
  2. 2.5 21 km ENE of Falls City, Texas
  3. 1.6 20 km ENE of Falls City, Texas
  4. 2.5 20 km ENE of Falls City, Texas
  5. 1.6 21 km ENE of Falls City, Texas
  6. 2.0 21 km ENE of Falls City, Texas
  7. 2.7 21 km ENE of Falls City, Texas
  8. 1.7 20 km ENE of Falls City, Texas
  9. 1.5 20 km ENE of Falls City, Texas
  10. 1.5 22 km SSW of Nixon, Texas
  11. 1.6 21 km SSW of Nixon, Texas
  12. 1.7 21 km ENE of Falls City, Texas
  13. 1.5 21 km ENE of Falls City, Texas
  14. 1.5 21 km ENE of Falls City, Texas
  15. 2.2 21 km ENE of Falls 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.