QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5mb_lg

10 km SW of Mooringsport, Louisiana

· 16 km deep · released about 170 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Caddo Parish 16 kmHarrison County 32 kmMarion County 34 kmBossier Parish 40 kmPanola County 57 kmCass County 58 kmWebster Parish 67 kmDe Soto Parish 70 kmGregg County 74 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 2.5 (mb_lg)
Depth
16 km below the surface
Felt
19 reports · strongest reported intensity III
Nearest
Caddo Parish, 16 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1925 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 19 people have reported feeling it to USGS.

How big was it?

This earthquake released about 170 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 89,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 63,000× the energy of this one
  3. Around the size people start to feel M 3.0 5.6× the energy of this one
  4. This earthquake M 2.5 about 170 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 32.6277, -94.0489. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Caddo Parish, LA 16 km (10 mi) WNW of here earthquakes near Caddo Parish
Harrison County, TX 32 km (20 mi) ENE of here earthquakes near Harrison County
Marion County, TX 34 km (21 mi) ESE of here earthquakes near Marion County
Bossier Parish, LA 40 km (25 mi) W of here earthquakes near Bossier Parish
Panola County, TX 57 km (35 mi) NNE of here earthquakes near Panola County
Cass County, TX 58 km (36 mi) SSE of here earthquakes near Cass County

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

Aftershocks so far

9 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
  9. 3.2 8 km WNW of Blanchard, 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.