QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8ml

11 km WSW of Kenedy, Texas

· 4.2 km deep · released about 15 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Karnes County 19 kmBee County 43 kmWilson County 48 kmLive Oak County 49 kmGoliad County 51 kmAtascosa County 59 kmDeWitt County 67 kmMcMullen County 75 kmGonzales County 89 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 1.8 (ml)
Depth
4.2 km below the surface
Felt
no reports yet
Nearest
Karnes County, 19 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 332 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 15 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 710,000× the energy of this one
  3. Around the size people start to feel M 3.0 63× the energy of this one
  4. This earthquake M 1.8 about 15 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 28.7630, -97.9450. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Karnes County, TX 19 km (12 mi) SSW of here earthquakes near Karnes County
Bee County, TX 43 km (27 mi) NNW of here earthquakes near Bee County
Wilson County, TX 48 km (30 mi) SSE of here earthquakes near Wilson County
Live Oak County, TX 49 km (30 mi) NNE of here earthquakes near Live Oak County
Goliad County, TX 51 km (32 mi) WNW of here earthquakes near Goliad County
Atascosa County, TX 59 km (37 mi) ESE of here earthquakes near Atascosa County

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

Aftershocks so far

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

  1. 2.1 5 km NW of Three Rivers, Texas
  2. 1.7 20 km W of Pawnee, Texas
  3. 1.7 18 km WNW of Three Rivers, Texas
  4. 1.5 19 km WNW of Three Rivers, Texas
  5. 1.5 5 km NW of Three Rivers, Texas
  6. 1.6 17 km NW of Three Rivers, Texas
  7. 1.5 20 km NW of Three Rivers, Texas
  8. 2.1 20 km WNW of Three Rivers, Texas
  9. 1.7 4 km E of Falls City, Texas
  10. 2.6 2 km NNE of Falls City, Texas
  11. 2.4 15 km ENE of Falls City, Texas
  12. 1.6 2 km SSE of Falls City, Texas
  13. 2.0 3 km ESE of Falls City, Texas
  14. 1.5 18 km NW of Three Rivers, Texas
  15. 1.6 3 km ESE 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.6 on 2025-01-30 — it released about 16,000 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

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