QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9md

14 km NW of Grovetown, Georgia

· 0.1 km deep · released about 24 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Columbia County 3 kmMcDuffie County 20 kmRichmond County 29 kmLincoln County 30 kmMcCormick County 38 kmEdgefield County 39 kmWarren County 40 kmGlascock County 47 kmWilkes County 50 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 1.9 (md)
Depth
0.1 km below the surface
Felt
12 reports · strongest reported intensity III
Nearest
Columbia County, 3 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 475 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 12 people have reported feeling it to USGS.

How big was it?

This earthquake released about 24 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 640,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 450,000× the energy of this one
  3. Around the size people start to feel M 3.0 40× the energy of this one
  4. This earthquake M 1.9 about 24 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 33.5540, -82.2862. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Columbia County, GA 3 km (2 mi) W of here earthquakes near Columbia County
McDuffie County, GA 20 km (12 mi) ENE of here earthquakes near McDuffie County
Richmond County, GA 29 km (18 mi) NW of here earthquakes near Richmond County
Lincoln County, GA 30 km (19 mi) SSE of here earthquakes near Lincoln County
McCormick County, SC 38 km (24 mi) S of here earthquakes near McCormick County
Edgefield County, SC 39 km (24 mi) SW of here earthquakes near Edgefield County

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

Aftershocks so far

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

  1. 1.9 2 km WNW of McCormick, South Carolina
  2. 1.9 4 km N of Washington, Georgia
  3. 1.9 14 km NW of Grovetown, Georgia
  4. 2.1 7 km SSW of West Warrenton, Georgia
  5. 2.7 11 km ENE of Parksville, South Carolina
  6. 1.7 11 km N of Harlem, Georgia
  7. 1.9 12 km N of Harlem, Georgia
  8. 1.8 14 km WNW of Evans, Georgia

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.