QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3mb_lg

5 km N of Castor, Louisiana

· 5.0 km deep · released about 85 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Bienville Parish 13 kmRed River Parish 28 kmWebster Parish 50 kmJackson Parish 57 kmLincoln Parish 58 kmDe Soto Parish 60 kmClaiborne Parish 61 kmBossier Parish 61 kmNatchitoches Parish 64 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 2.3 (mb_lg)
Depth
5.0 km below the surface
Felt
no reports yet
Nearest
Bienville Parish, 13 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 53 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 85 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 180,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 130,000× the energy of this one
  3. Around the size people start to feel M 3.0 11× the energy of this one
  4. This earthquake M 2.3 about 85 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 32.3033, -93.1734. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Bienville Parish, LA 13 km (8 mi) WSW of here earthquakes near Bienville Parish
Red River Parish, LA 28 km (17 mi) NE of here earthquakes near Red River Parish
Webster Parish, LA 50 km (31 mi) SSE of here earthquakes near Webster Parish
Jackson Parish, LA 57 km (36 mi) W of here earthquakes near Jackson Parish
Lincoln Parish, LA 58 km (36 mi) SW of here earthquakes near Lincoln Parish
De Soto Parish, LA 60 km (37 mi) ENE of here earthquakes near De Soto Parish

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

Aftershocks so far

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

  1. 3.4 2 km WNW of Coushatta, Louisiana
  2. 1.9 13 km W of Edgefield, Louisiana
  3. 2.4 6 km NNW of Ringgold, Louisiana
  4. 1.9 3 km ENE of Jamestown, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.9 on 2026-03-05 — it released about 7,900 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.