QuakeIndex

Earthquake · reviewed by a seismologist

M 3.8ml

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 3.8 earthquake was recorded 19 km (12 mi) east of Pleasanton, TX, at 11:22 pm CDT on 18 July 2023 (04:22 UTC), 8.8 km deep. 55 people have reported feeling it to USGS.

USGS: 19 km E of Pleasanton, Texas

60 km (37 mi) SSE of San Antonio, TX

11:22 pm CDT, Jul 18, 2023 · · 8.8 km deep · released about 7.6 tons of TNT

10 km30 km60 km120 km N Atascosa County 26 kmWilson County 30 kmKarnes County 42 kmBexar County 58 kmLive Oak County 70 kmMcMullen County 71 kmGuadalupe County 76 kmBee County 81 kmFrio County 81 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
11:22 pm CDT on 18 July 2023 ()
Where
19 km (12 mi) east of Pleasanton, TX · earthquakes near Pleasanton
Texas today
every earthquake in Texas in the last 24 hours
Magnitude
M 3.8 (ml)
Depth
8.8 km below the surface
Felt
55 reports · strongest reported intensity V
Measured shaking
intensity IV (ShakeMap)
Nearest
Atascosa County, 26 km WSW
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 401 km (249 mi) from the epicentre. In Pleasanton, 19 km away, the estimate is intensity IV (light). 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: Pleasanton 19 km, intensity IV · Floresville 22 km, intensity IV · Jourdanton 26 km, intensity IV · Karnes City 38 km, intensity III · Charlotte 43 km, intensity III · Stockdale 43 km, intensity III. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 7.6 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.8 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 22,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 1,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 710× the energy of this one
  4. This earthquake M 3.8 about 7.6 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 16× 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.

For this area

The largest earthquake within 50 km since 2016 was M 4.0 on 2018-05-01 — about 2 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 28.9670, -98.2820. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Atascosa County, TX 26 km (16 mi) WSW earthquakes near Atascosa County
Wilson County, TX 30 km (19 mi) NE earthquakes near Wilson County
Karnes County, TX 42 km (26 mi) E earthquakes near Karnes County
Bexar County, TX 58 km (36 mi) NNW earthquakes near Bexar County
Live Oak County, TX 70 km (44 mi) SSE earthquakes near Live Oak County
McMullen County, TX 71 km (44 mi) SSW earthquakes near McMullen 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. 1.8 15 km ENE of Falls City, Texas
  2. 1.7 16 km ENE of Falls City, Texas
  3. 1.6 16 km ENE of Falls City, Texas
  4. 1.7 14 km ENE of Falls City, Texas
  5. 1.5 15 km ENE of Falls City, Texas
  6. 1.9 14 km ENE of Falls City, Texas
  7. 1.5 17 km ENE of Falls City, Texas
  8. 4.1 16 km ENE of Falls City, Texas
  9. 1.5 17 km ENE of Falls City, Texas
  10. 2.7 16 km ENE of Falls City, Texas
  11. 1.7 16 km ENE of Falls City, Texas
  12. 3.1 17 km ENE of Falls City, Texas
  13. 1.6 16 km ENE of Falls City, Texas
  14. 1.7 17 km ENE of Falls City, Texas
  15. 3.0 17 km ENE of Falls City, 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.