QuakeIndex

Earthquake · reviewed by a seismologist

M 3.1ml

11 km NW of Tilden, Texas

· 4.8 km deep · released about 1,300 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N McMullen County 17 kmAtascosa County 42 kmLa Salle County 49 kmLive Oak County 54 kmFrio County 60 kmKarnes County 88 kmBee County 89 kmWilson County 90 kmDuval County 95 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 3.1 (ml)
Depth
4.8 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
McMullen County, 17 km SSE
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 1,300 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.1 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 250,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 11,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 7,900× the energy of this one
  4. This earthquake M 3.1 about 1,300 lb of TNT
  5. Around the size people start to feel M 3.0 this one released 1.4× more

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 28.5240, -98.6400. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
McMullen County, TX 17 km (10 mi) NNW of here earthquakes near McMullen County
Atascosa County, TX 42 km (26 mi) SSW of here earthquakes near Atascosa County
La Salle County, TX 49 km (30 mi) ENE of here earthquakes near La Salle County
Live Oak County, TX 54 km (33 mi) WNW of here earthquakes near Live Oak County
Frio County, TX 60 km (37 mi) SE of here earthquakes near Frio County
Karnes County, TX 88 km (55 mi) WSW of here earthquakes near Karnes County

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

Aftershocks so far

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

  1. 2.2 22 km E of Dilley, Texas
  2. 2.3 19 km N of Fowlerton, Texas
  3. 2.5 24 km E of Hilltop, Texas
  4. 2.4 22 km E of Dilley, Texas
  5. 2.0 18 km SW of Charlotte, Texas
  6. 2.4 22 km E of Dilley, Texas
  7. 2.4 22 km E of Dilley, Texas
  8. 2.5 23 km E of Dilley, Texas
  9. 2.3 9 km N of Three Rivers, Texas
  10. 2.1 5 km E of Charlotte, Texas
  11. 1.5 6 km NNE of Three Rivers, Texas
  12. 1.8 22 km NNW of Fowlerton, Texas
  13. 1.9 20 km E of Dilley, Texas
  14. 1.9 24 km E of Christine, Texas
  15. 1.5 24 km E of Christine, 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

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