QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1md

3 km NNE of Cooleemee, North Carolina

· 4.8 km deep · released about 47 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Davie County 10 kmRowan County 22 kmIredell County 30 kmDavidson County 31 kmYadkin County 37 kmForsyth County 42 kmCabarrus County 50 kmAlexander County 58 kmCatawba County 64 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 2.1 (md)
Depth
4.8 km below the surface
Felt
15 reports · strongest reported intensity IV
Nearest
Davie County, 10 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1820 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 15 people have reported feeling it to USGS.

How big was it?

This earthquake released about 47 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 320,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 230,000× the energy of this one
  3. Around the size people start to feel M 3.0 20× the energy of this one
  4. This earthquake M 2.1 about 47 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 35.8390, -80.5422. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Davie County, NC 10 km (6 mi) S of here earthquakes near Davie County
Rowan County, NC 22 km (14 mi) N of here earthquakes near Rowan County
Iredell County, NC 30 km (19 mi) E of here earthquakes near Iredell County
Davidson County, NC 31 km (19 mi) W of here earthquakes near Davidson County
Yadkin County, NC 37 km (23 mi) SSE of here earthquakes near Yadkin County
Forsyth County, NC 42 km (26 mi) SW of here earthquakes near Forsyth 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. 1.8 3 km SE of Troutman, North Carolina
  2. 2.0 3 km ESE of Catawba, North Carolina
  3. 2.1 3 km ESE of Catawba, North Carolina
  4. 1.9 5 km SW of Winston-Salem, North Carolina
  5. 2.0 7 km SSW of Winston-Salem, North Carolina
  6. 1.7 7 km E of Lewisville, North Carolina
  7. 2.3 6 km SW of Winston-Salem, North Carolina
  8. 2.4 5 km SSW of Winston-Salem, 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.