QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4mb_lg

14 km W of Nacogdoches, Texas

· 5.0 km deep · released about 120 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Nacogdoches County 18 kmCherokee County 43 kmAngelina County 43 kmRusk County 57 kmTrinity County 65 kmSan Augustine County 66 kmHouston County 66 kmShelby County 66 kmPanola County 78 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 (mb_lg)
Depth
5.0 km below the surface
Felt
1 report · strongest reported intensity IV
Nearest
Nacogdoches County, 18 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2465 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 1 person has reported feeling it to USGS.

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 31.6026, -94.8065. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Nacogdoches County, TX 18 km (11 mi) W of here earthquakes near Nacogdoches County
Cherokee County, TX 43 km (26 mi) SE of here earthquakes near Cherokee County
Angelina County, TX 43 km (27 mi) NNW of here earthquakes near Angelina County
Rusk County, TX 57 km (35 mi) S of here earthquakes near Rusk County
Trinity County, TX 65 km (40 mi) NNE of here earthquakes near Trinity County
San Augustine County, TX 66 km (41 mi) WNW of here earthquakes near San Augustine County

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

Aftershocks so far

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

  1. 2.5 5 km NNW of Huntington, Texas
  2. 3.5 13 km NNE of Wells, Texas
  3. 2.6 5 km WSW of Chireno, Texas
  4. 3.0 5 km WSW of Chireno, Texas
  5. 3.1 12 km W of Nacogdoches, 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.