QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

12 km E of Tilden, Texas

· 6.4 km deep · released about 21 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N McMullen County 18 kmLive Oak County 31 kmAtascosa County 49 kmBee County 66 kmLa Salle County 67 kmKarnes County 74 kmFrio County 81 kmWilson County 85 kmJim Wells County 87 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 1.9 (ml)
Depth
6.4 km below the surface
Felt
no reports yet
Nearest
McMullen County, 18 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 452 days ago

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

How big was it?

This earthquake released about 21 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 710,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 500,000× the energy of this one
  3. Around the size people start to feel M 3.0 45× the energy of this one
  4. This earthquake M 1.9 about 21 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 28.4630, -98.4190. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
McMullen County, TX 18 km (11 mi) ENE of here earthquakes near McMullen County
Live Oak County, TX 31 km (19 mi) WNW of here earthquakes near Live Oak County
Atascosa County, TX 49 km (30 mi) SSE of here earthquakes near Atascosa County
Bee County, TX 66 km (41 mi) W of here earthquakes near Bee County
La Salle County, TX 67 km (42 mi) E of here earthquakes near La Salle County
Karnes County, TX 74 km (46 mi) SW of here earthquakes near Karnes County

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

Aftershocks so far

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

  1. 1.7 22 km NE of Tilden, Texas
  2. 1.6 23 km NW of Three Rivers, Texas
  3. 1.7 23 km SSE of Christine, Texas
  4. 1.6 22 km NE of Tilden, Texas
  5. 1.9 22 km NE of Tilden, Texas
  6. 1.8 22 km NE of Tilden, Texas
  7. 1.5 23 km NE of Tilden, Texas
  8. 1.5 23 km NE of Tilden, Texas
  9. 1.6 22 km NE of Tilden, Texas
  10. 2.1 22 km NE of Tilden, Texas
  11. 2.2 22 km NE of Tilden, Texas
  12. 1.8 14 km NNW of Fowlerton, Texas
  13. 1.6 8 km NNE of Three Rivers, Texas
  14. 1.8 15 km NW of Fowlerton, Texas
  15. 1.6 26 km NW of Pawnee, 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.