QuakeIndex

Earthquake · reviewed by a seismologist

M 3.2mb_lg

8 km WNW of Blanchard, Louisiana

· 5.4 km deep · released about 1,900 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Caddo Parish 9 kmBossier Parish 35 kmHarrison County 37 kmMarion County 42 kmPanola County 57 kmWebster Parish 62 kmDe Soto Parish 64 kmCass County 64 kmMiller County 79 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 3.2 (mb_lg)
Depth
5.4 km below the surface
Felt
69 reports · strongest reported intensity IV
Measured shaking
intensity IV (ShakeMap)
Nearest
Caddo Parish, 9 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 644 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 69 people have reported feeling it to USGS.

How big was it?

This earthquake released about 1,900 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.2 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 180,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 7,900× the energy of this one
  3. Magna, Utah 2020 M 5.7 5,600× the energy of this one
  4. This earthquake M 3.2 about 1,900 lb of TNT
  5. Around the size people start to feel M 3.0 this one released 2× 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.

Where

Epicentre 32.5981, -93.9806. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Caddo Parish, LA 9 km (6 mi) WNW of here earthquakes near Caddo Parish
Bossier Parish, LA 35 km (22 mi) WSW of here earthquakes near Bossier Parish
Harrison County, TX 37 km (23 mi) E of here earthquakes near Harrison County
Marion County, TX 42 km (26 mi) ESE of here earthquakes near Marion County
Panola County, TX 57 km (35 mi) NNE of here earthquakes near Panola County
Webster Parish, LA 62 km (38 mi) WSW of here earthquakes near Webster Parish

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

Aftershocks so far

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

  1. 3.5 0 km WSW of Mooringsport, Louisiana
  2. 3.0 4 km ESE of Mooringsport, Louisiana
  3. 2.9 7 km WSW of Mooringsport, Louisiana
  4. 2.4 1 km SSW of Mooringsport, Louisiana
  5. 3.1 7 km S of Mooringsport, Louisiana
  6. 2.6 9 km SW of Mooringsport, Louisiana
  7. 3.1 2 km S of Mooringsport, Louisiana
  8. 3.0 4 km SSW of Mooringsport, Louisiana

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.