QuakeIndex

Earthquake · reviewed by a seismologist

M 2.8ml

Earthquake near Three Rivers, TX

Yes: an earthquake was likely felt in Three Rivers in the last 24 hours. M 2.2, 20 km (12 mi) WNW of Three Rivers, at 10:27 am CST on 12 November 2026 (16:27 UTC); the estimated shaking in Three Rivers was intensity II (weak). Every earthquake near Three Rivers

This page: a magnitude 2.8 earthquake was recorded 23 km (14 mi) north-northwest of Three Rivers, TX, at 10:05 am CDT on 25 March 2023 (15:05 UTC), 5.2 km deep. 2 people have reported feeling it to USGS.

USGS: 23 km NNW of Three Rivers, Texas

93 km (58 mi) SSE of San Antonio, TX

10:05 am CDT, Mar 25, 2023 · · 5.2 km deep · released about 480 lb of TNT

10 km30 km60 km120 km N Live Oak County 36 kmAtascosa County 37 kmMcMullen County 43 kmKarnes County 49 kmBee County 58 kmWilson County 60 kmGoliad County 82 kmFrio County 85 kmLa Salle County 88 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
10:05 am CDT on 25 March 2023 ()
Where
23 km (14 mi) north-northwest of Three Rivers, TX · earthquakes near Three Rivers
Texas today
every earthquake in Texas in the last 24 hours
Magnitude
M 2.8 (ml)
Depth
5.2 km below the surface
Felt
2 reports · strongest reported intensity II
Nearest
Live Oak County, 36 km SSE
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 62 km (39 mi) from the epicentre. In Three Rivers, 23 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: Three Rivers 23 km, intensity III · Jourdanton 40 km, intensity II · Pleasanton 40 km, intensity II · Karnes City 44 km, intensity II · Charlotte 48 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 480 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 32,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 22,000× the energy of this one
  3. Around the size people start to feel M 3.0 2× the energy of this one
  4. This earthquake M 2.8 about 480 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 63 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 28.6550, -98.2690. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Live Oak County, TX 36 km (23 mi) SSE earthquakes near Live Oak County
Atascosa County, TX 37 km (23 mi) NW earthquakes near Atascosa County
McMullen County, TX 43 km (26 mi) SW earthquakes near McMullen County
Karnes County, TX 49 km (31 mi) NE earthquakes near Karnes County
Bee County, TX 58 km (36 mi) ESE earthquakes near Bee County
Wilson County, TX 60 km (38 mi) NNE earthquakes near Wilson County

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

Aftershocks so far

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

  1. 1.9 19 km SW of Falls City, Texas
  2. 1.9 19 km SW of Falls City, Texas
  3. 1.5 1 km S of Falls City, Texas
  4. 2.2 2 km SW of Falls City, Texas
  5. 1.9 1 km SW of Falls City, Texas
  6. 1.6 2 km WSW of Falls City, Texas
  7. 2.1 8 km SSE of Christine, Texas
  8. 1.6 23 km NNW of Three Rivers, Texas
  9. 1.5 23 km NNW of Three Rivers, Texas
  10. 2.1 22 km NNW of Three Rivers, Texas
  11. 2.0 23 km NNW of Three Rivers, Texas
  12. 1.9 23 km NNW of Three Rivers, Texas
  13. 2.0 23 km NNW of Three Rivers, Texas
  14. 2.6 23 km NNW of Three Rivers, Texas
  15. 1.6 22 km NW of Three Rivers, 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.