QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6md

12 km WNW of Charleston, Tennessee

· 18 km deep · released about 230 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Meigs County 19 kmBradley County 22 kmMcMinn County 24 kmRhea County 29 kmHamilton County 36 kmPolk County 40 kmBledsoe County 41 kmSequatchie County 49 kmCatoosa County 56 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 2.6 (md)
Depth
18 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Meigs County, 19 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1516 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 1 person has reported feeling it to USGS.

How big was it?

This earthquake released about 230 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 65,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 46,000× the energy of this one
  3. Around the size people start to feel M 3.0 4.1× the energy of this one
  4. This earthquake M 2.6 about 230 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 35.3502, -84.8732. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Meigs County, TN 19 km (12 mi) SSW of here earthquakes near Meigs County
Bradley County, TN 22 km (14 mi) N of here earthquakes near Bradley County
McMinn County, TN 24 km (15 mi) WSW of here earthquakes near McMinn County
Rhea County, TN 29 km (18 mi) SSE of here earthquakes near Rhea County
Hamilton County, TN 36 km (23 mi) NE of here earthquakes near Hamilton County
Polk County, TN 40 km (25 mi) NW of here earthquakes near Polk County

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

Aftershocks so far

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

  1. 1.8 Tennessee
  2. 1.7 11 km NNE of Decatur, Tennessee
  3. 2.1 10 km NNE of Decatur, Tennessee
  4. 1.9 11 km NNE of Decatur, Tennessee
  5. 3.0 10 km NNE of Decatur, Tennessee
  6. 4.4 12 km NNE of Decatur, Tennessee
  7. 2.7 12 km NW of Sweetwater, Tennessee
  8. 1.9 2 km N of Graysville, Tennessee
  9. 1.7 0 km E of Graysville, Tennessee
  10. 1.9 5 km N of Benton, Tennessee
  11. 1.6 6 km SE of Sweetwater, Tennessee
  12. 1.8 Tennessee
  13. 2.7 6 km ESE of Englewood, Tennessee
  14. 2.5 3 km E of Ridgeside, Tennessee
  15. 2.2 1 km WNW of Niota, 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.