QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8md

1 km NNW of Coronaca, South Carolina

· 0.0 km deep · released about 16 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Greenwood County 13 kmLaurens County 25 kmAbbeville County 33 kmSaluda County 45 kmNewberry County 46 kmMcCormick County 46 kmEdgefield County 56 kmAnderson County 57 kmLincoln County 62 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 1.8 (md)
Depth
0.0 km below the surface
Felt
7 reports · strongest reported intensity III
Nearest
Greenwood County, 13 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 281 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 7 people have reported feeling it to USGS.

How big was it?

This earthquake released about 16 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.

  1. Mineral, Virginia 2011 M 5.8 970,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 680,000× the energy of this one
  3. Around the size people start to feel M 3.0 61× the energy of this one
  4. This earthquake M 1.8 about 16 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 34.2740, -82.0993. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Greenwood County, SC 13 km (8 mi) NNE of here earthquakes near Greenwood County
Laurens County, SC 25 km (15 mi) SSW of here earthquakes near Laurens County
Abbeville County, SC 33 km (20 mi) E of here earthquakes near Abbeville County
Saluda County, SC 45 km (28 mi) NW of here earthquakes near Saluda County
Newberry County, SC 46 km (29 mi) W of here earthquakes near Newberry County
McCormick County, SC 46 km (29 mi) NNE of here earthquakes near McCormick County

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

Aftershocks so far

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

  1. 1.9 2 km WNW of McCormick, South Carolina
  2. 2.1 5 km NNE of Calhoun Falls, 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.