QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9md

9 km W of Bucksport, South Carolina

· 4.8 km deep · released about 21 lb of TNT

10 km30 km60 km120 km N Georgetown County 28 kmHorry County 35 kmWilliamsburg County 48 kmMarion County 50 kmFlorence County 63 kmDillon County 83 kmBerkeley County 85 kmColumbus County 85 kmClarendon County 94 km
Distance rings around the epicentre, with the nearest towns at their true direction. Not a shaking map — see the USGS ShakeMap for that.
When
Magnitude
M 1.9 (md)
Depth
4.8 km below the surface
Felt
3 reports · strongest reported intensity II
Nearest
Georgetown County, 28 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 337 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 3 people have reported feeling it to USGS.

How big was it?

This earthquake released about 21 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 5.8 730,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 520,000× the energy of this one
  3. Around the size people start to feel M 3.0 46× the energy of this one
  4. This earthquake M 1.9 about 21 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 33.6528, -79.2042. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Georgetown County, SC 28 km (17 mi) NNE of here earthquakes near Georgetown County
Horry County, SC 35 km (22 mi) SW of here earthquakes near Horry County
Williamsburg County, SC 48 km (30 mi) E of here earthquakes near Williamsburg County
Marion County, SC 50 km (31 mi) SSE of here earthquakes near Marion County
Florence County, SC 63 km (39 mi) SE of here earthquakes near Florence County
Dillon County, SC 83 km (52 mi) S of here earthquakes near Dillon County

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

Aftershocks so far

No further earthquakes have been recorded within 50 km since this one.

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.