QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6ml

Earthquake near Pleasanton, TX

Yes: an earthquake was likely felt in Pleasanton in the last 24 hours. M 3.2, 46 km (29 mi) WSW of Pleasanton, at 3:20 am CST on 12 November 2026 (09:20 UTC); the estimated shaking in Pleasanton was intensity III (weak). Every earthquake near Pleasanton

This page: a magnitude 2.6 earthquake was recorded 21 km (13 mi) south-southeast of Pleasanton, TX, at 8:23 pm CDT on 6 June 2018 (01:23 UTC), 3.5 km deep.

USGS: 9 km E of Christine, Texas

76 km (47 mi) S of San Antonio, TX

8:23 pm CDT, Jun 6, 2018 · · 3.5 km deep · released about 240 lb of TNT

10 km30 km60 km120 km N Atascosa County 18 kmMcMullen County 48 kmWilson County 52 kmKarnes County 55 kmLive Oak County 55 kmFrio County 70 kmBexar County 74 kmBee County 76 kmLa Salle County 84 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
8:23 pm CDT on 6 June 2018 ()
Where
21 km (13 mi) south-southeast of Pleasanton, TX · earthquakes near Pleasanton
Texas today
every earthquake in Texas in the last 24 hours
Magnitude
M 2.6 (ml)
Depth
3.5 km below the surface
Felt
no reports yet
Nearest
Atascosa County, 18 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 498 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

At this magnitude and depth, people at rest would likely notice it out to about 51 km (32 mi) from the epicentre. In Pleasanton, 21 km away, the estimate is intensity III (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.

Likely felt in: Jourdanton 20 km, intensity III · Pleasanton 21 km, intensity III · Charlotte 31 km, intensity II · Three Rivers 42 km, intensity II · Floresville 45 km, intensity II · Karnes City 50 km, intensity II. Estimated for each town centre; each link is that town's own record.

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.

For this area

The largest earthquake within 50 km since 2016 was M 4.0 on 2018-05-01 — about 130 times the energy of this one.

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 28.7900, -98.3980. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Atascosa County, TX 18 km (11 mi) NW earthquakes near Atascosa County
McMullen County, TX 48 km (30 mi) SSW earthquakes near McMullen County
Wilson County, TX 52 km (33 mi) NE earthquakes near Wilson County
Karnes County, TX 55 km (34 mi) ENE earthquakes near Karnes County
Live Oak County, TX 55 km (34 mi) SSE earthquakes near Live Oak County
Frio County, TX 70 km (43 mi) W earthquakes near Frio County

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

Aftershocks so far

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

  1. 3.0 7 km NNE of Falls City, Texas
  2. 2.4 19 km WSW of Charlotte, Texas
  3. 2.3 12 km SW of Falls City, Texas
  4. 2.8 15 km SW of Falls City, Texas
  5. 2.5 21 km SW of Falls City, Texas
  6. 1.7 19 km SW of Falls City, Texas
  7. 1.6 7 km E of Falls City, Texas
  8. 2.0 15 km SW of Falls City, Texas
  9. 2.9 6 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

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