QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

6 km SW of Winston-Salem, North Carolina

· 1.3 km deep · released about 94 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Forsyth County 9 kmDavie County 27 kmDavidson County 30 kmYadkin County 36 kmStokes County 38 kmGuilford County 45 kmRowan County 51 kmSurry County 54 kmRockingham County 58 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 2.3 (md)
Depth
1.3 km below the surface
Felt
189 reports · strongest reported intensity IV
Nearest
Forsyth County, 9 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1701 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 189 people have reported feeling it to USGS.

How big was it?

This earthquake released about 94 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 160,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 110,000× the energy of this one
  3. Around the size people start to feel M 3.0 10× the energy of this one
  4. This earthquake M 2.3 about 94 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 36.0567, -80.2845. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Forsyth County, NC 9 km (5 mi) SSW of here earthquakes near Forsyth County
Davie County, NC 27 km (17 mi) ENE of here earthquakes near Davie County
Davidson County, NC 30 km (19 mi) NNW of here earthquakes near Davidson County
Yadkin County, NC 36 km (22 mi) ESE of here earthquakes near Yadkin County
Stokes County, NC 38 km (23 mi) S of here earthquakes near Stokes County
Guilford County, NC 45 km (28 mi) W of here earthquakes near Guilford County

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

Aftershocks so far

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

  1. 2.0 7 km WNW of Randleman, North Carolina
  2. 1.7 8 km NW of Randleman, North Carolina
  3. 1.6 7 km NW of Randleman, North Carolina
  4. 2.4 7 km NW of Randleman, North Carolina
  5. 1.9 7 km NW of Randleman, North Carolina
  6. 1.9 7 km NW of Randleman, North Carolina
  7. 2.3 8 km WNW of Randleman, North Carolina
  8. 2.3 8 km NW of Randleman, North Carolina
  9. 2.0 6 km E of Archdale, North Carolina
  10. 1.9 5 km SW of Winston-Salem, North Carolina
  11. 2.0 7 km SSW of Winston-Salem, North Carolina
  12. 1.7 7 km E of Lewisville, North 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.