QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7md

2 km S of Lake Santeetlah, North Carolina

· 9.4 km deep · released about 390 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Graham County 3 kmCherokee County 29 kmClay County 34 kmMonroe County 37 kmBlount County 39 kmSwain County 44 kmMacon County 45 kmTowns County 50 kmUnion County 57 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 2.7 (md)
Depth
9.4 km below the surface
Felt
193 reports · strongest reported intensity III
Nearest
Graham County, 3 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1531 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 193 people have reported feeling it to USGS.

How big was it?

This earthquake released about 390 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 39,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 28,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.5× the energy of this one
  4. This earthquake M 2.7 about 390 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 35.3402, -83.8670. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Graham County, NC 3 km (2 mi) WSW of here earthquakes near Graham County
Cherokee County, NC 29 km (18 mi) NE of here earthquakes near Cherokee County
Clay County, NC 34 km (21 mi) NNW of here earthquakes near Clay County
Monroe County, TN 37 km (23 mi) ESE of here earthquakes near Monroe County
Blount County, TN 39 km (24 mi) S of here earthquakes near Blount County
Swain County, NC 44 km (28 mi) SW of here earthquakes near Swain County

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

Aftershocks so far

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

  1. 1.7 15 km SW of Bryson City, North Carolina
  2. 2.1 6 km SSW of Cherokee, North Carolina
  3. 2.5 6 km SSW of Cherokee, North Carolina
  4. 2.0 Tennessee-North Carolina border region
  5. 1.9 7 km WNW of Dillsboro, North Carolina
  6. 2.0 10 km WSW of Tellico Plains, Tennessee
  7. 2.1 9 km ESE of Vonore, Tennessee
  8. 2.0 11 km ESE of Vonore, Tennessee
  9. 1.7 11 km ESE of Madisonville, Tennessee
  10. 1.9 10 km ESE of Vonore, Tennessee
  11. 2.0 2 km WNW of Greenback, Tennessee
  12. 1.8 3 km ENE of Madisonville, Tennessee
  13. 1.6 7 km ESE of Vonore, Tennessee
  14. 2.4 7 km E of Tellico Plains, Tennessee
  15. 2.3 1 km ENE of Maryville, Tennessee

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.