QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6mb_lg

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 2.6 earthquake was recorded 19 km (12 mi) south-southeast of Nixon, TX, at 6:38 pm CST on 14 January 2019 (00:38 UTC), 5.0 km deep.

USGS: 18 km SSW of Smiley, Texas

91 km (56 mi) ESE of San Antonio, TX

6:38 pm CST, Jan 14, 2019 · · 5.0 km deep · released about 240 lb of TNT

10 km30 km60 km120 km N Karnes County 28 kmDeWitt County 31 kmWilson County 40 kmGonzales County 44 kmGoliad County 55 kmGuadalupe County 59 kmBee County 77 kmVictoria County 77 kmLavaca County 80 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
6:38 pm CST on 14 January 2019 ()
Where
19 km (12 mi) south-southeast of Nixon, TX · earthquakes near Nixon
Texas today
every earthquake in Texas in the last 24 hours
Magnitude
M 2.6 (mb_lg)
Depth
5.0 km below the surface
Felt
no reports yet
Nearest
Karnes County, 28 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 498 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 51 km (32 mi) from the epicentre. In Nixon, 19 km away, the estimate is intensity III (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: Nixon 19 km, intensity III · Yorktown 22 km, intensity III · Stockdale 31 km, intensity II · Karnes City 33 km, intensity II · Cuero 38 km, intensity II · Floresville 46 km, intensity II · Gonzales 49 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 240 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 63,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 45,000× the energy of this one
  3. Around the size people start to feel M 3.0 4× the energy of this one
  4. This earthquake M 2.6 about 240 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 4.0 on 2018-05-01 — about 130 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 29.1077, -97.6825. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Karnes County, TX 28 km (17 mi) SW earthquakes near Karnes County
DeWitt County, TX 31 km (19 mi) E earthquakes near DeWitt County
Wilson County, TX 40 km (25 mi) W earthquakes near Wilson County
Gonzales County, TX 44 km (27 mi) NNE earthquakes near Gonzales County
Goliad County, TX 55 km (34 mi) SSE earthquakes near Goliad County
Guadalupe County, TX 59 km (37 mi) NNW earthquakes near Guadalupe County

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

Aftershocks so far

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

  1. 2.5 12 km ENE of Falls City, Texas
  2. 2.0 11 km ENE of Falls City, Texas
  3. 1.7 12 km ENE of Falls City, Texas
  4. 1.9 12 km ENE of Falls City, Texas
  5. 1.7 12 km ENE of Falls City, Texas
  6. 1.7 11 km ENE of Falls City, Texas
  7. 1.7 13 km ENE of Falls City, Texas
  8. 2.2 12 km ENE of Falls City, Texas
  9. 1.7 13 km ENE of Falls City, Texas
  10. 2.5 16 km SSW of Smiley, Texas
  11. 2.3 12 km ENE of Falls City, Texas
  12. 2.1 12 km ENE of Falls City, Texas
  13. 1.7 12 km ENE of Falls City, Texas
  14. 2.1 12 km ENE of Falls City, Texas
  15. 2.8 13 km NNE of Karnes 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.