QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

Earthquake near Stockbridge, GA

No earthquake was likely felt in Stockbridge in the 24 hours to 3:23 pm EST (20:23 UTC). The last one was M 2.1, 14 km (9 mi) WNW, at 10:05 am EDT on 17 September 2026, estimated intensity II (weak) in town. Every earthquake near Stockbridge

This page: a magnitude 2.3 earthquake was recorded 3 km (2 mi) east-southeast of Stockbridge, GA, at 8:17 pm EST on 2 January 2020 (01:17 UTC), 1.9 km deep. 321 people have reported feeling it to USGS.

USGS: 2 km ESE of Stockbridge, Georgia

32 km (20 mi) SE of Atlanta, GA · 17 km (10 mi) SSW of Stonecrest, GA

8:17 pm EST, Jan 2, 2020 · · 1.9 km deep · released about 74 lb of TNT

10 km30 km60 km120 km N Henry County 11 kmClayton County 19 kmRockdale County 21 kmDeKalb County 26 kmFayette County 30 kmSpalding County 32 kmNewton County 33 kmButts County 36 kmFulton County 37 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
8:17 pm EST on 2 January 2020 ()
Where
3 km (2 mi) east-southeast of Stockbridge, GA · earthquakes near Stockbridge
Magnitude
M 2.3 (md)
Depth
1.9 km below the surface
Felt
321 reports · strongest reported intensity IV
Nearest
Henry County, 11 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1677 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth, people at rest would likely notice it out to about 35 km (22 mi) from the epicentre. In Stockbridge, 3 km away, the estimate is intensity III (weak). Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

Earthquakes near other towns within 30 km: McDonough, Morrow, Jonesboro, Lake City, Bonanza, Lovejoy.

How big was it?

This earthquake released about 74 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 5.8 200,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 140,000× 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 74 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 33.5387, -84.2062. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Henry County, GA 11 km (7 mi) SSE earthquakes near Henry County
Clayton County, GA 19 km (12 mi) W earthquakes near Clayton County
Rockdale County, GA 21 km (13 mi) NE earthquakes near Rockdale County
DeKalb County, GA 26 km (16 mi) N earthquakes near DeKalb County
Fayette County, GA 30 km (19 mi) WSW earthquakes near Fayette County
Spalding County, GA 32 km (20 mi) SSW earthquakes near Spalding County

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

Aftershocks so far

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

  1. 2.1 2 km S of Forest Park, Georgia
  2. 2.3 3 km N of Lilburn, Georgia
  3. 2.5 13 km NE of Jackson, Georgia
  4. 2.1 1 km N of Lilburn, Georgia
  5. 2.3 2 km N of Lilburn, 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.