QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2md

Earthquake near Trion, GA

USGS: 4 km WSW of Trion, Georgia

7:37 am EDT, Apr 13, 2016 · · 9.1 km deep · released about 58 lb of TNT

10 km30 km60 km120 km N Chattooga County 6 kmWalker County 23 kmFloyd County 32 kmDade County 39 kmDeKalb County 42 kmGordon County 44 kmCatoosa County 46 kmWhitfield County 46 kmBartow 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
7:37 am EDT on 13 April 2016 ()
Where
4 km (3 mi) WSW of Trion, GA · earthquakes near Trion
Magnitude
M 2.2 (md)
Depth
9.1 km below the surface
Felt
no reports yet
Nearest
Chattooga County, 6 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3825 days ago

A magnitude 2.2 earthquake was recorded 4 km (3 mi) WSW of Trion, GA, at 7:37 am EDT on 13 April 2016 (11:37 UTC). 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.

How big was it?

This earthquake released about 58 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.2 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 260,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 180,000× the energy of this one
  3. Around the size people start to feel M 3.0 16× the energy of this one
  4. This earthquake M 2.2 about 58 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 34.5293, -85.3533. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Chattooga County, GA 6 km (4 mi) S earthquakes near Chattooga County
Walker County, GA 23 km (15 mi) N earthquakes near Walker County
Floyd County, GA 32 km (20 mi) SSE earthquakes near Floyd County
Dade County, GA 39 km (24 mi) NNW earthquakes near Dade County
DeKalb County, AL 42 km (26 mi) W earthquakes near DeKalb County
Gordon County, GA 44 km (27 mi) E earthquakes near Gordon County

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

Aftershocks so far

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

  1. 2.3 13 km SW of Dalton, Georgia
  2. 2.2 13 km SW of Dalton, Georgia
  3. 1.9 0 km NW of LaFayette, Georgia
  4. 1.7 2 km ESE of Dalton, Georgia
  5. 2.0 16 km SW of Dalton, Georgia
  6. 2.2 4 km SSE of Dutton, Alabama
  7. 2.3 3 km WSW of Trenton, Georgia
  8. 2.3 8 km NW of Linwood, Georgia
  9. 2.1 10 km ENE of Mentone, Alabama
  10. 2.1 4 km S of Tunnel Hill, Georgia
  11. 2.4 9 km SW of Tunnel Hill, Georgia
  12. 2.0 5 km S of Tunnel Hill, Georgia
  13. 2.2 5 km WSW of Chickamauga, Georgia
  14. 2.3 2 km WSW of Indian Springs, Georgia
  15. 2.5 5 km S of Tunnel Hill, 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.