QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8ml

Earthquake near Gonzales, TX

Yes: an earthquake was likely felt in Gonzales in the last 24 hours. M 3.2, 160 km (100 mi) WSW of Gonzales, at 3:20 am CST on 12 November 2026 (09:20 UTC); the estimated shaking in Gonzales was intensity II (weak). Every earthquake near Gonzales

This page: a magnitude 1.8 earthquake was recorded 25 km (16 mi) south of Gonzales, TX, at 10:34 am CDT on 22 July 2023 (15:34 UTC), 7.6 km deep.

USGS: 13 km E of Smiley, Texas

10:34 am CDT, Jul 22, 2023 · · 7.6 km deep · released about 15 lb of TNT

10 km30 km60 km120 km N Gonzales County 21 kmDeWitt County 25 kmKarnes County 54 kmGuadalupe County 56 kmLavaca County 56 kmWilson County 59 kmCaldwell County 63 kmGoliad County 69 kmVictoria County 74 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
10:34 am CDT on 22 July 2023 ()
Where
25 km (16 mi) south of Gonzales, TX · earthquakes near Gonzales
Texas today
every earthquake in Texas in the last 24 hours
Magnitude
M 1.8 (ml)
Depth
7.6 km below the surface
Felt
no reports yet
Nearest
Gonzales County, 21 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 412 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth, people at rest would likely notice it out to about 15 km (9 mi) from the epicentre. In Gonzales, 25 km away, the estimate is intensity II (weak). Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

Earthquakes near other towns within 30 km: Nixon, Cuero.

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.

For this area

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

Before 2016, the USGS record since 1900 lists no earthquake of M5 or more within 50 km.

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Epicentre 29.2760, -97.4930. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Gonzales County, TX 21 km (13 mi) N earthquakes near Gonzales County
DeWitt County, TX 25 km (16 mi) SSE earthquakes near DeWitt County
Karnes County, TX 54 km (33 mi) SW earthquakes near Karnes County
Guadalupe County, TX 56 km (35 mi) NW earthquakes near Guadalupe County
Lavaca County, TX 56 km (35 mi) ENE earthquakes near Lavaca County
Wilson County, TX 59 km (36 mi) W earthquakes near Wilson County

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

Aftershocks so far

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

  1. 2.1 15 km ENE of Falls City, Texas
  2. 1.8 15 km ENE of Falls City, Texas
  3. 1.7 16 km ENE of Falls City, Texas
  4. 1.6 16 km ENE of Falls City, Texas
  5. 1.7 14 km ENE of Falls City, Texas
  6. 1.5 15 km ENE of Falls City, Texas
  7. 1.9 14 km ENE of Falls City, Texas
  8. 1.5 17 km ENE of Falls City, Texas
  9. 4.1 16 km ENE of Falls City, Texas
  10. 1.5 17 km ENE of Falls City, Texas
  11. 2.7 16 km ENE of Falls City, Texas
  12. 1.7 16 km ENE of Falls City, Texas
  13. 3.1 17 km ENE of Falls City, Texas
  14. 1.6 16 km ENE of Falls City, Texas
  15. 1.7 17 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.