QuakeIndex

Earthquake · reviewed by a seismologist

M 2.8ml

Earthquake near Floresville, TX

No earthquake was likely felt in Floresville in the 24 hours to 5:26 am CST (11:26 UTC). The last one was M 3.1, 82 km (51 mi) WSW, at 3:20 am CST on 12 November 2026, estimated intensity II (weak) in town; 1 felt report to USGS. Every earthquake near Floresville

This page: a magnitude 2.8 earthquake was recorded 32 km (20 mi) east-southeast of Floresville, TX, at 4:12 am CST on 14 December 2025 (10:12 UTC), 7.0 km deep.

USGS: 20 km ENE of Falls City, Texas

80 km (50 mi) ESE of San Antonio, TX

4:12 am CST, Dec 14, 2025 · · 7.0 km deep · released about 480 lb of TNT

10 km30 km60 km120 km N Karnes County 18 kmWilson County 27 kmDeWitt County 45 kmGonzales County 54 kmGuadalupe County 58 kmGoliad County 60 kmAtascosa County 72 kmBee County 74 kmBexar County 79 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
4:12 am CST on 14 December 2025 ()
Where
32 km (20 mi) east-southeast of Floresville, TX · earthquakes near Floresville
Texas today
every earthquake in Texas in the last 24 hours
Magnitude
M 2.8 (ml)
Depth
7.0 km below the surface
Felt
no reports yet
Nearest
Karnes County, 18 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 248 days ago

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

At this magnitude and depth, people at rest would likely notice it out to about 61 km (38 mi) from the epicentre. In Floresville, 32 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.

Likely felt in: Stockdale 22 km, intensity III · Karnes City 22 km, intensity III · Nixon 22 km, intensity III · Floresville 32 km, intensity II · Yorktown 33 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 480 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 32,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 22,000× the energy of this one
  3. Around the size people start to feel M 3.0 2× the energy of this one
  4. This earthquake M 2.8 about 480 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

The largest earthquake within 50 km since 2016 was M 4.6 on 2025-01-30 — about 500 times the energy of this one.

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 29.0740, -97.8290. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Karnes County, TX 18 km (11 mi) S earthquakes near Karnes County
Wilson County, TX 27 km (17 mi) WNW earthquakes near Wilson County
DeWitt County, TX 45 km (28 mi) E earthquakes near DeWitt County
Gonzales County, TX 54 km (34 mi) NE earthquakes near Gonzales County
Guadalupe County, TX 58 km (36 mi) NNW earthquakes near Guadalupe County
Goliad County, TX 60 km (37 mi) SE earthquakes near Goliad County

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

Aftershocks so far

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

  1. 1.7 11 km SSE of Smiley, Texas
  2. 1.7 4 km E of Falls City, Texas
  3. 2.6 2 km NNE of Falls City, Texas
  4. 2.4 15 km ENE of Falls City, Texas
  5. 1.6 2 km SSE of Falls City, Texas
  6. 2.0 3 km ESE of Falls City, Texas
  7. 1.6 3 km ESE of Falls City, Texas
  8. 1.8 11 km SSE of Smiley, Texas
  9. 3.0 2 km ESE of Falls City, Texas
  10. 1.6 2 km E of Falls City, Texas
  11. 2.1 2 km ESE of Falls City, Texas
  12. 1.6 11 km SSE of Smiley, Texas
  13. 1.6 15 km ENE of Falls City, Texas
  14. 1.6 15 km ENE of Falls City, Texas
  15. 1.7 16 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.