QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4md

6 km NW of Jefferson, South Carolina

· 2.5 km deep · released about 110 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Lancaster County 23 kmChesterfield County 27 kmUnion County 35 kmKershaw County 41 kmAnson County 44 kmDarlington County 60 kmLee County 62 kmChester County 65 kmFairfield County 70 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 2.4 (md)
Depth
2.5 km below the surface
Felt
10 reports · strongest reported intensity III
Nearest
Lancaster County, 23 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3147 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 10 people have reported feeling it to USGS.

How big was it?

This earthquake released about 110 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 140,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 99,000× the energy of this one
  3. Around the size people start to feel M 3.0 8.8× the energy of this one
  4. This earthquake M 2.4 about 110 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 34.6883, -80.4478. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Lancaster County, SC 23 km (15 mi) E of here earthquakes near Lancaster County
Chesterfield County, SC 27 km (17 mi) WNW of here earthquakes near Chesterfield County
Union County, NC 35 km (21 mi) SSE of here earthquakes near Union County
Kershaw County, SC 41 km (26 mi) NNE of here earthquakes near Kershaw County
Anson County, NC 44 km (28 mi) SW of here earthquakes near Anson County
Darlington County, SC 60 km (37 mi) NW of here earthquakes near Darlington County

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

Aftershocks so far

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

  1. 1.8 9 km SSW of Kershaw, South Carolina
  2. 2.2 7 km SSW of Jaars, North Carolina
  3. 2.0 5 km SSW of Marshville, North Carolina
  4. 1.7 5 km W of Jaars, North Carolina
  5. 2.2 7 km ESE of Pageland, South Carolina
  6. 2.4 7 km WNW of Jefferson, South Carolina
  7. 1.8 13 km SSW of Heath Springs, South Carolina
  8. 2.2 12 km W of Bethune, South Carolina
  9. 2.3 8 km ESE of Kershaw, South Carolina
  10. 1.8 4 km ESE of Hemby Bridge, North Carolina
  11. 1.9 South Carolina
  12. 2.2 10 km WNW of Pageland, 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.