QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4ml

5 km NNW of Marble Falls, Texas

· 2.9 km deep · released about 120 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Burnet County 20 kmLlano County 39 kmBlanco County 41 kmLampasas County 64 kmWilliamson County 66 kmHays County 68 kmGillespie County 70 kmTravis County 72 kmSan Saba County 77 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 2.4 (ml)
Depth
2.9 km below the surface
Felt
no reports yet
Nearest
Burnet County, 20 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1131 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 120 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 130,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 89,000× the energy of this one
  3. Around the size people start to feel M 3.0 7.9× the energy of this one
  4. This earthquake M 2.4 about 120 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 30.6244, -98.2939. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Burnet County, TX 20 km (13 mi) SSW of here earthquakes near Burnet County
Llano County, TX 39 km (24 mi) ESE of here earthquakes near Llano County
Blanco County, TX 41 km (26 mi) NNE of here earthquakes near Blanco County
Lampasas County, TX 64 km (40 mi) S of here earthquakes near Lampasas County
Williamson County, TX 66 km (41 mi) W of here earthquakes near Williamson County
Hays County, TX 68 km (42 mi) NNW of here earthquakes near Hays County

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

Aftershocks so far

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

  1. 2.0 4 km SSE of Burnet, Texas
  2. 2.4 4 km SE of Round Mountain, 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.