QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2ml

16 km S of Asherton, Texas

· 1.5 km deep · released about 60 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Dimmit County 14 kmZavala County 63 kmLa Salle County 67 kmMaverick County 72 kmWebb County 73 kmFrio County 91 kmUvalde County 117 kmMcMullen County 117 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 2.2 (ml)
Depth
1.5 km below the surface
Felt
no reports yet
Nearest
Dimmit County, 14 km N
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 60 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.2 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 250,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 180,000× the energy of this one
  3. Around the size people start to feel M 3.0 16× the energy of this one
  4. This earthquake M 2.2 about 60 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 28.2950, -99.7740. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Dimmit County, TX 14 km (9 mi) S of here earthquakes near Dimmit County
Zavala County, TX 63 km (39 mi) S of here earthquakes near Zavala County
La Salle County, TX 67 km (41 mi) W of here earthquakes near La Salle County
Maverick County, TX 72 km (45 mi) SE of here earthquakes near Maverick County
Webb County, TX 73 km (45 mi) NW of here earthquakes near Webb County
Frio County, TX 91 km (57 mi) SW of here earthquakes near Frio County

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

Aftershocks so far

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

  1. 2.2 21 km W of Carrizo Springs, Texas
  2. 2.0 13 km WSW of Asherton, Texas
  3. 1.9 8 km S of Asherton, Texas
  4. 2.4 15 km SSW of Asherton, Texas
  5. 2.3 13 km SSW of Asherton, Texas
  6. 2.1 21 km SW of Catarina, Texas
  7. 2.0 17 km E of El Indio, Texas
  8. 3.6 18 km E of El Indio, 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.