QuakeIndex

Earthquake · reviewed by a seismologist

M 4.1mb

Earthquake near Coushatta, LA

No earthquake was likely felt in Coushatta in the 24 hours to 2:29 am CST (08:29 UTC). The last one was M 2.7, 18 km (11 mi) SSW, at 3:26 pm CDT on 25 September 2026, estimated intensity III (weak) in town; 2 felt reports to USGS. Every earthquake near Coushatta

This page: a magnitude 4.1 earthquake was recorded 6 km (4 mi) north of Coushatta, LA, at 4:40 am CDT on 9 March 2026 (09:40 UTC), 6.1 km deep. 21 people have reported feeling it to USGS.

USGS: 2 km NW of Edgefield, Louisiana

61 km (38 mi) SE of Shreveport, LA · 59 km (36 mi) SSE of Bossier City, LA

4:40 am CDT, Mar 9, 2026 · · 6.1 km deep · released about 21 tons of TNT

Every earthquake near Coushatta Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Red River Parish 4 kmDe Soto Parish 37 kmBienville Parish 42 kmNatchitoches Parish 45 kmSabine Parish 60 kmWinn Parish 68 kmWebster Parish 74 kmBossier Parish 75 kmCaddo Parish 76 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
4:40 am CDT on 9 March 2026 ()
Where
6 km (4 mi) north of Coushatta, LA · earthquakes near Coushatta
Magnitude
M 4.1 (mb)
Depth
6.1 km below the surface
Felt
21 reports · strongest reported intensity V
Measured shaking
intensity VII (ShakeMap)
USGS impact alert
green
Nearest
Red River Parish, 4 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 172 days ago

This was a light earthquake. It is usually felt clearly nearby and can rattle windows and dishes, but damage is uncommon.

At this magnitude and depth, people at rest would likely notice it out to about 491 km (305 mi) from the epicentre. In Coushatta, 6 km away, the estimate is intensity V (moderate). Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

Likely felt in: Coushatta 6 km, intensity V · Mansfield 33 km, intensity IV · Natchitoches 42 km, intensity IV. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 21 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 5.1 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 7,900× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 350× the energy of this one
  3. Magna, Utah 2020 M 5.7 250× the energy of this one
  4. This earthquake M 4.1 about 21 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 45× 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.

For this area

The largest earthquake within 50 km since 2016 was M 4.9 on 2026-03-05 — about 16 times the energy of this one.

Before 2016, the USGS record since 1900 lists no earthquake of M5 or more within 50 km.

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Epicentre 32.0660, -93.3479. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Red River Parish, LA 4 km (2 mi) N earthquakes near Red River Parish
De Soto Parish, LA 37 km (23 mi) W earthquakes near De Soto Parish
Bienville Parish, LA 42 km (26 mi) NE earthquakes near Bienville Parish
Natchitoches Parish, LA 45 km (28 mi) SE earthquakes near Natchitoches Parish
Sabine Parish, LA 60 km (37 mi) SSW earthquakes near Sabine Parish
Winn Parish, LA 68 km (42 mi) ESE earthquakes near Winn Parish

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

Aftershocks so far

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

  1. 2.7 9 km NE of Pleasant Hill, Louisiana
  2. 2.6 11 km ENE of Pleasant Hill, Louisiana
  3. 3.4 2 km WNW of Coushatta, Louisiana
  4. 1.9 13 km W of Edgefield, Louisiana
  5. 2.4 6 km NNW of Ringgold, Louisiana
  6. 1.9 3 km ENE of Jamestown, Louisiana
  7. 2.3 5 km N of Castor, Louisiana
  8. 2.1 5 km W of Edgefield, Louisiana
  9. 2.5 15 km E of Mansfield, Louisiana
  10. 1.5 15 km W of Coushatta, Louisiana
  11. 2.1 14 km ESE of Mansfield, Louisiana
  12. 2.3 7 km ENE of Jamestown, Louisiana
  13. 2.2 3 km SE of Ringgold, Louisiana
  14. 2.1 16 km W of Coushatta, Louisiana
  15. 1.9 15 km E of Mansfield, 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.