QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9md

5 km NW of Edisto Beach, South Carolina

· 6.9 km deep · released about 20 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Beaufort County 34 kmColleton County 46 kmCharleston County 52 kmJasper County 61 kmDorchester County 64 kmHampton County 78 kmBerkeley County 87 kmChatham County 89 kmEffingham County 92 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
6.9 km below the surface
Felt
no reports yet
Nearest
Beaufort County, 34 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3653 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 20 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 5.8 760,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 540,000× the energy of this one
  3. Around the size people start to feel M 3.0 48× the energy of this one
  4. This earthquake M 1.9 about 20 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 32.5090, -80.3790. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Beaufort County, SC 34 km (21 mi) ENE of here earthquakes near Beaufort County
Colleton County, SC 46 km (29 mi) SE of here earthquakes near Colleton County
Charleston County, SC 52 km (32 mi) SW of here earthquakes near Charleston County
Jasper County, SC 61 km (38 mi) E of here earthquakes near Jasper County
Dorchester County, SC 64 km (40 mi) S of here earthquakes near Dorchester County
Hampton County, SC 78 km (48 mi) ESE of here earthquakes near Hampton 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. 1.8 11 km SSW of Centerville, South Carolina
  2. 2.1 11 km SW of Centerville, 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.