Earthquake · reviewed by a seismologist
M 1.8md
9 km SSW of Kershaw, South Carolina
- When
- Magnitude
- M 1.8 (md)
- Depth
- 13 km below the surface
- Felt
- 2 reports · strongest reported intensity II
- Nearest
- Kershaw County, 16 km SSE
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 362 days ago
This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 2 people have reported feeling it to USGS.
How big was it?
This earthquake released about 17 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.
- Mineral, Virginia 2011 M 5.8 900,000× the energy of this one
- Magna, Utah 2020 M 5.7 640,000× the energy of this one
- Around the size people start to feel M 3.0 57× the energy of this one
- This earthquake M 1.8 about 17 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 34.4770, -80.6393. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| Kershaw County, SC | 16 km (10 mi) | NNW of here | earthquakes near Kershaw County |
| Lancaster County, SC | 24 km (15 mi) | SSE of here | earthquakes near Lancaster County |
| Fairfield County, SC | 46 km (28 mi) | ENE of here | earthquakes near Fairfield County |
| Chesterfield County, SC | 47 km (29 mi) | WSW of here | earthquakes near Chesterfield County |
| Lee County, SC | 50 km (31 mi) | NW of here | earthquakes near Lee County |
| Chester County, SC | 53 km (33 mi) | ESE of here | earthquakes near Chester County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
4 earthquakes have been recorded within 50 km since this one.
- 2.2 6 km E of Elgin, South Carolina
- 2.1 5 km SSW of Lugoff, South Carolina
- 2.7 5 km ESE of Elgin, South Carolina
- 2.0 7 km E of Elgin, 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
- The official USGS event page — the source of record for every value above
- Did you feel it? Report it to USGS — reports go to USGS, not to us
- ShakeMap for this event, when USGS has produced one
QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.