QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

Earthquake near Trion, GA

USGS: 9 km ENE of Trion, Georgia

56 km (34 mi) S of Chattanooga, TN · 115 km (71 mi) NW of Atlanta, GA

1:36 pm EDT, Nov 1, 2017 · · 16 km deep · released about 72 lb of TNT

Every earthquake near Trion Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Chattooga County 16 kmWalker County 21 kmGordon County 31 kmFloyd County 34 kmWhitfield County 34 kmCatoosa County 37 kmDade County 42 kmBartow County 50 kmMurray County 50 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
1:36 pm EDT on 1 November 2017 ()
Where
10 km (6 mi) ENE of Trion, GA · earthquakes near Trion
Magnitude
M 2.3 (md)
Depth
16 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Chattooga County, 16 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3174 days ago

A magnitude 2.3 earthquake was recorded 10 km (6 mi) ENE of Trion, GA, at 1:36 pm EDT on 1 November 2017 (17:36 UTC). 1 person has reported feeling it to USGS. This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

Earthquakes near other towns within 30 km: Summerville, LaFayette, Calhoun, Shannon.

How big was it?

This earthquake released about 72 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 5.8 210,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 150,000× the energy of this one
  3. Around the size people start to feel M 3.0 13× the energy of this one
  4. This earthquake M 2.3 about 72 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.

For this area

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

Before 2016, the USGS record since 1900 lists no earthquake of M5 or more within 50 km.

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Epicentre 34.5680, -85.2058. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Chattooga County, GA 16 km (10 mi) SW earthquakes near Chattooga County
Walker County, GA 21 km (13 mi) NNW earthquakes near Walker County
Gordon County, GA 31 km (19 mi) ESE earthquakes near Gordon County
Floyd County, GA 34 km (21 mi) S earthquakes near Floyd County
Whitfield County, GA 34 km (21 mi) NE earthquakes near Whitfield County
Catoosa County, GA 37 km (23 mi) N earthquakes near Catoosa County

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

Aftershocks so far

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

  1. 2.5 4 km N of Tunnel Hill, Georgia
  2. 2.1 10 km SE of Chickamauga, Georgia
  3. 2.0 10 km SSW of Chatsworth, Georgia
  4. 2.2 4 km WSW of Tunnel Hill, Georgia
  5. 2.0 10 km WNW of Resaca, Georgia
  6. 2.3 10 km WNW of Resaca, Georgia
  7. 2.1 11 km SW of Dalton, Georgia
  8. 2.2 8 km SSW of Dalton, Georgia
  9. 2.2 3 km ENE of East Brainerd, Tennessee
  10. 1.9 Alabama
  11. 1.9 6 km NW of Eton, Georgia
  12. 2.3 8 km W of Tunnel Hill, Georgia
  13. 2.0 2 km SSE of Varnell, Georgia
  14. 2.0 2 km WNW of Menlo, Georgia
  15. 2.4 2 km WNW of Menlo, Georgia

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.