QuakeIndex

Earthquake · reviewed by a seismologist

M 1.1ml

Earthquake near Nixon, TX

Yes: an earthquake was likely felt in Nixon in the last 24 hours. M 3.2, 122 km (76 mi) WSW of Nixon, at 3:20 am CST on 12 November 2026 (09:20 UTC); the estimated shaking in Nixon was intensity II (weak). Every earthquake near Nixon

This page: a magnitude 1.1 earthquake was recorded 16 km (10 mi) south-southeast of Nixon, TX, at 1:37 am CDT on 21 September 2026 (06:37 UTC), 8.8 km deep.

USGS: 14 km SSW of Smiley, Texas

89 km (55 mi) ESE of San Antonio, TX

1:37 am CDT, Sep 21, 2026 · · 8.8 km deep · released about 1.3 lb of TNT

10 km30 km60 km120 km N Karnes County 30 kmDeWitt County 32 kmWilson County 39 kmGonzales County 40 kmGuadalupe County 56 kmGoliad County 59 kmCaldwell County 77 kmLavaca County 78 kmVictoria 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
1:37 am CDT on 21 September 2026 ()
Where
16 km (10 mi) south-southeast of Nixon, TX · earthquakes near Nixon
Texas today
every earthquake in Texas in the last 24 hours
Magnitude
M 1.1 (ml)
Depth
8.8 km below the surface
Felt
no reports yet
Nearest
Karnes County, 30 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 46 days ago

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

At this magnitude and depth it was probably too small to be felt, even directly above it. 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: Yorktown, Runge, Stockdale.

How big was it?

This earthquake released about 1.3 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 11,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 7,900,000× the energy of this one
  3. Around the size people start to feel M 3.0 710× the energy of this one
  4. This earthquake M 1.1 about 1.3 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 180,000 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 29.1390, -97.6830. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Karnes County, TX 30 km (19 mi) SSW earthquakes near Karnes County
DeWitt County, TX 32 km (20 mi) ESE earthquakes near DeWitt County
Wilson County, TX 39 km (24 mi) W earthquakes near Wilson County
Gonzales County, TX 40 km (25 mi) NNE earthquakes near Gonzales County
Guadalupe County, TX 56 km (35 mi) NNW earthquakes near Guadalupe County
Goliad County, TX 59 km (36 mi) SSE earthquakes near Goliad County

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

Aftershocks so far

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

  1. 0.9 19 km S of Nixon, Texas
  2. 2.8 19 km S of Nixon, Texas
  3. 2.2 18 km S of Nixon, Texas
  4. 1.2 19 km S of Nixon, Texas
  5. 1.6 19 km S of Nixon, Texas
  6. 1.6 17 km S of Nixon, Texas
  7. 1.6 17 km S of Nixon, Texas
  8. 2.7 8 km ESE of Smiley, Texas
  9. 1.1 9 km ESE of Smiley, Texas
  10. 1.7 16 km SSW of Smiley, Texas
  11. 1.3 17 km SSE of Nixon, Texas
  12. 1.7 16 km S of Smiley, 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.