QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5md

5 km NNE of East Brainerd, Tennessee

· 17 km deep · released about 180 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Hamilton County 15 kmCatoosa County 16 kmBradley County 27 kmWhitfield County 31 kmWalker County 38 kmDade County 41 kmSequatchie County 44 kmMarion County 45 kmMurray County 45 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 2.5 (md)
Depth
17 km below the surface
Felt
8 reports · strongest reported intensity II
Nearest
Hamilton County, 15 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1669 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 8 people have reported feeling it to USGS.

How big was it?

This earthquake released about 180 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 83,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 59,000× the energy of this one
  3. Around the size people start to feel M 3.0 5.2× the energy of this one
  4. This earthquake M 2.5 about 180 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 35.0455, -85.1282. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Hamilton County, TN 15 km (9 mi) SSE of here earthquakes near Hamilton County
Catoosa County, GA 16 km (10 mi) N of here earthquakes near Catoosa County
Bradley County, TN 27 km (17 mi) WSW of here earthquakes near Bradley County
Whitfield County, GA 31 km (19 mi) NNW of here earthquakes near Whitfield County
Walker County, GA 38 km (24 mi) NNE of here earthquakes near Walker County
Dade County, GA 41 km (25 mi) ENE of here earthquakes near Dade County

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

Aftershocks so far

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

  1. 2.2 6 km WNW of Linwood, Georgia
  2. 1.9 5 km ESE of Benton, Tennessee
  3. 2.3 6 km WSW of Linwood, Georgia
  4. 1.8 4 km SE of Apison, Tennessee
  5. 2.0 1 km WSW of Collegedale, Tennessee
  6. 1.9 5 km E of LaFayette, Georgia
  7. 1.8 2 km SW of Chickamauga, Georgia
  8. 2.2 2 km S of Ringgold, Georgia
  9. 2.0 4 km SSW of Benton, Tennessee
  10. 2.5 4 km N of Tunnel Hill, Georgia
  11. 2.1 10 km SE of Chickamauga, Georgia
  12. 2.4 9 km NE of Eton, Georgia
  13. 2.2 4 km WSW of Tunnel Hill, Georgia
  14. 2.0 10 km WNW of Resaca, Georgia
  15. 2.2 10 km W of Graysville, 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.