QuakeIndex

Earthquake · reviewed by a seismologist

M 3.3mlg

5 km SSW of Lugoff, South Carolina

· 3.1 km deep · released about 1.3 tons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Kershaw County 21 kmRichland County 24 kmSumter County 43 kmLee County 43 kmFairfield County 44 kmLancaster County 56 kmCalhoun County 57 kmLexington County 60 kmChester County 69 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 3.3 (mlg)
Depth
3.1 km below the surface
Felt
3168 reports · strongest reported intensity VI
Measured shaking
intensity IV (ShakeMap)
Nearest
Kershaw County, 21 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1161 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 3168 people have reported feeling it to USGS.

How big was it?

This earthquake released about 1.3 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.3 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 130,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 5,600× the energy of this one
  3. Magna, Utah 2020 M 5.7 4,000× the energy of this one
  4. This earthquake M 3.3 about 1.3 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 2.8× 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 34.1823, -80.7197. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Kershaw County, SC 21 km (13 mi) SW of here earthquakes near Kershaw County
Richland County, SC 24 km (15 mi) NE of here earthquakes near Richland County
Sumter County, SC 43 km (27 mi) NW of here earthquakes near Sumter County
Lee County, SC 43 km (27 mi) W of here earthquakes near Lee County
Fairfield County, SC 44 km (28 mi) ESE of here earthquakes near Fairfield County
Lancaster County, SC 56 km (35 mi) S of here earthquakes near Lancaster County

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

Aftershocks so far

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

  1. 2.1 6 km SSW of Lugoff, South Carolina
  2. 2.3 7 km SSW of Lugoff, South Carolina
  3. 2.1 6 km ESE of Elgin, South Carolina
  4. 2.2 6 km E of Elgin, South Carolina
  5. 1.6 6 km E of Elgin, South Carolina
  6. 1.6 6 km SSW of Lugoff, South Carolina
  7. 1.6 6 km ESE of Elgin, South Carolina
  8. 2.1 7 km ESE of Elgin, South Carolina
  9. 1.6 7 km ESE of Elgin, South Carolina
  10. 1.6 6 km ESE of Elgin, South Carolina
  11. 1.6 7 km SSW of Lugoff, South Carolina
  12. 1.9 6 km E of Elgin, South Carolina
  13. 2.1 6 km E of Elgin, South Carolina
  14. 1.7 6 km ESE of Elgin, South Carolina
  15. 2.1 6 km ESE of Elgin, South Carolina

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.