Earthquake · reviewed by a seismologist
M 1.8ml
Earthquake near Coushatta, LA
USGS: 12 km SSW of Coushatta, Louisiana
74 km (46 mi) SSE of Shreveport, LA
- When
- 3:41 pm CDT on 28 March 2026 ()
- Where
- 13 km (8 mi) SSW of Coushatta, LA · earthquakes near Coushatta
- Magnitude
- M 1.8 (ml)
- Depth
- 5.0 km below the surface
- Felt
- no reports yet
- Nearest
- Red River Parish, 22 km N
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 114 days ago
A magnitude 1.8 earthquake was recorded 13 km (8 mi) SSW of Coushatta, LA, at 3:41 pm CDT on 28 March 2026 (20:41 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.
Earthquakes near other towns within 30 km: Campti.
How big was it?
This earthquake released about 15 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 1,000,000× the energy of this one
- Magna, Utah 2020 M 5.7 710,000× the energy of this one
- Around the size people start to feel M 3.0 63× the energy of this one
- This earthquake M 1.8 about 15 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.
For this area
The largest earthquake within 50 km since 2016 was M 4.9 on 2026-03-05 — about 45,000 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 31.9064, -93.3779. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Red River Parish, LA | 22 km (14 mi) | N | earthquakes near Red River Parish |
| Natchitoches Parish, LA | 34 km (21 mi) | SE | earthquakes near Natchitoches Parish |
| De Soto Parish, LA | 38 km (24 mi) | WNW | earthquakes near De Soto Parish |
| Sabine Parish, LA | 42 km (26 mi) | SSW | earthquakes near Sabine Parish |
| Bienville Parish, LA | 58 km (36 mi) | NNE | earthquakes near Bienville Parish |
| Winn Parish, LA | 70 km (43 mi) | E | earthquakes near Winn Parish |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
22 earthquakes have been recorded within 50 km since this one.
- 2.7 9 km NE of Pleasant Hill, Louisiana
- 2.6 11 km ENE of Pleasant Hill, Louisiana
- 3.4 2 km WNW of Coushatta, Louisiana
- 1.9 13 km W of Edgefield, Louisiana
- 2.3 5 km N of Castor, Louisiana
- 2.1 5 km W of Edgefield, Louisiana
- 2.5 15 km E of Mansfield, Louisiana
- 1.5 15 km W of Coushatta, Louisiana
- 2.1 14 km ESE of Mansfield, Louisiana
- 2.2 3 km SE of Ringgold, Louisiana
- 2.1 16 km W of Coushatta, Louisiana
- 1.9 15 km E of Mansfield, Louisiana
- 2.5 4 km NW of Coushatta, Louisiana
- 2.4 17 km ESE of Mansfield, Louisiana
- 2.1 3 km NW of Edgefield, 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
- The official USGS event page — the source of record for every value above
- Did you feel it? Report it to USGS — reports go to USGS, not to us
- ShakeMap for this event, when USGS has produced one
QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.