QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

Earthquake near Dilley, TX

Yes: an earthquake was likely felt in Dilley in the last 24 hours. M 2.0, 12 km (7 mi) NW of Dilley, at 12:26 pm CST on 12 November 2026 (18:26 UTC); the estimated shaking in Dilley was intensity II (weak). Every earthquake near Dilley

This page: a magnitude 1.6 earthquake was recorded 9 km (5 mi) north of Dilley, TX, at 4:34 am CDT on 30 May 2026 (09:34 UTC), 6.2 km deep.

USGS: 5 km N of Hilltop, Texas

4:34 am CDT, May 30, 2026 · · 6.2 km deep · released about 7.6 lb of TNT

10 km30 km60 km120 km N Frio County 15 kmLa Salle County 45 kmZavala County 58 kmAtascosa County 64 kmDimmit County 68 kmMedina County 68 kmMcMullen County 71 kmUvalde County 88 kmBexar County 101 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
4:34 am CDT on 30 May 2026 ()
Where
9 km (5 mi) north of Dilley, TX · earthquakes near Dilley
Texas today
every earthquake in Texas in the last 24 hours
Magnitude
M 1.6 (ml)
Depth
6.2 km below the surface
Felt
no reports yet
Nearest
Frio County, 15 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 165 days ago

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

At this magnitude and depth, people at rest would likely notice it out to about 4 km (2 mi) from the epicentre. In Dilley, 9 km away, the estimate is intensity II (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.

Earthquakes near other towns within 30 km: Pearsall.

How big was it?

This earthquake released about 7.6 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,400,000× the energy of this one
  3. Around the size people start to feel M 3.0 130× the energy of this one
  4. This earthquake M 1.6 about 7.6 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

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

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 28.7460, -99.1760. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Frio County, TX 15 km (9 mi) NNE earthquakes near Frio County
La Salle County, TX 45 km (28 mi) S earthquakes near La Salle County
Zavala County, TX 58 km (36 mi) WNW earthquakes near Zavala County
Atascosa County, TX 64 km (40 mi) ENE earthquakes near Atascosa County
Dimmit County, TX 68 km (42 mi) WSW earthquakes near Dimmit County
Medina County, TX 68 km (42 mi) N earthquakes near Medina County

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

Aftershocks so far

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

  1. 2.0 13 km SE of Pearsall, Texas
  2. 1.9 11 km SE of Pearsall, Texas
  3. 1.5 11 km SE of Pearsall, Texas
  4. 1.5 11 km SE of Pearsall, Texas
  5. 1.9 11 km SE of Pearsall, Texas
  6. 2.3 12 km SE of Pearsall, Texas
  7. 2.5 12 km SE of Pearsall, Texas
  8. 1.9 8 km ESE of Pearsall, Texas
  9. 1.6 10 km SE of Pearsall, Texas
  10. 2.2 9 km SE of Pearsall, Texas
  11. 2.1 11 km SE of Pearsall, Texas
  12. 1.7 4 km NNE of Hilltop, Texas
  13. 2.2 10 km SE of Pearsall, Texas
  14. 1.5 11 km SE of Pearsall, Texas
  15. 1.9 6 km SE of Pearsall, 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.