QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6ml

17 km S of Nixon, Texas

· 7.4 km deep · released about 240 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Karnes County 25 kmWilson County 34 kmDeWitt County 37 kmGonzales County 46 kmGuadalupe County 56 kmGoliad County 58 kmBee County 77 kmAtascosa County 81 kmCaldwell County 81 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 2.6 (ml)
Depth
7.4 km below the surface
Felt
1 report · strongest reported intensity III
Nearest
Karnes County, 25 km SSW
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 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.

Where

Epicentre 29.1090, -97.7400. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Karnes County, TX 25 km (15 mi) NNE of here earthquakes near Karnes County
Wilson County, TX 34 km (21 mi) ESE of here earthquakes near Wilson County
DeWitt County, TX 37 km (23 mi) W of here earthquakes near DeWitt County
Gonzales County, TX 46 km (29 mi) SSW of here earthquakes near Gonzales County
Guadalupe County, TX 56 km (35 mi) SSE of here earthquakes near Guadalupe County
Goliad County, TX 58 km (36 mi) NNW of here earthquakes near Goliad County

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

Aftershocks so far

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

  1. 2.0 13 km E of Smiley, Texas
  2. 1.5 14 km E of Smiley, Texas
  3. 2.4 19 km ENE of Falls City, Texas
  4. 2.3 13 km ENE of Smiley, Texas
  5. 1.7 14 km ENE of Smiley, Texas
  6. 1.8 14 km E of Smiley, Texas
  7. 1.6 8 km ENE of Falls City, Texas
  8. 2.0 13 km SSE of Nixon, Texas
  9. 1.6 19 km SW of Falls City, Texas
  10. 1.9 19 km SW of Falls City, Texas
  11. 1.9 19 km SW of Falls City, Texas
  12. 1.5 1 km S of Falls City, Texas
  13. 2.2 2 km SW of Falls City, Texas
  14. 1.6 12 km SSW of Smiley, Texas
  15. 2.2 13 km SSW 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.0 on 2018-05-01 — it released about 130 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.