QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

Earthquake near Athens, TN

No earthquake was likely felt in Athens in the 24 hours to 2:08 am EST (07:08 UTC). The last one was M 1.9, 7 km (4 mi) SW, at 6:30 am EDT on 31 October 2026, estimated intensity II (weak) in town. Every earthquake near Athens

This page: a magnitude 2.3 earthquake was recorded 16 km (10 mi) east-southeast of Athens, TN, at 9:28 am EST on 5 December 2019 (14:28 UTC), 9.0 km deep. 12 people have reported feeling it to USGS.

USGS: 6 km SE of Englewood, Tennessee

79 km (49 mi) SW of Knoxville, TN · 46 km (28 mi) ENE of Cleveland, TN

9:28 am EST, Dec 5, 2019 · · 9.0 km deep · released about 79 lb of TNT

10 km30 km60 km120 km N McMinn County 18 kmMonroe County 18 kmPolk County 32 kmMeigs County 38 kmLoudon County 41 kmCherokee County 43 kmBradley County 46 kmRoane County 52 kmRhea County 53 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
9:28 am EST on 5 December 2019 ()
Where
16 km (10 mi) east-southeast of Athens, TN · earthquakes near Athens
Magnitude
M 2.3 (md)
Depth
9.0 km below the surface
Felt
12 reports · strongest reported intensity IV
Nearest
McMinn County, 18 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1900 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 Athens, 16 km away, the estimate is intensity II (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.

Likely felt in: Athens 16 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 79 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 5.8 190,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 130,000× the energy of this one
  3. Around the size people start to feel M 3.0 12× the energy of this one
  4. This earthquake M 2.3 about 79 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

The largest earthquake within 50 km since 2016 was M 4.4 on 2018-12-12 — about 1,500 times the energy of this one.

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 35.3827, -84.4327. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
McMinn County, TN 18 km (11 mi) WNW earthquakes near McMinn County
Monroe County, TN 18 km (11 mi) ENE earthquakes near Monroe County
Polk County, TN 32 km (20 mi) SSW earthquakes near Polk County
Meigs County, TN 38 km (23 mi) WNW earthquakes near Meigs County
Loudon County, TN 41 km (25 mi) NNE earthquakes near Loudon County
Cherokee County, NC 43 km (27 mi) SE earthquakes near Cherokee County

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

Aftershocks so far

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

  1. 1.9 Tennessee
  2. 1.6 1 km W of Madisonville, Tennessee
  3. 1.7 5 km ENE of Sweetwater, Tennessee
  4. 1.5 15 km ENE of Tellico Plains, Tennessee
  5. 1.8 6 km S of Friendsville, Tennessee
  6. 1.6 11 km WNW of Sweetwater, Tennessee
  7. 2.1 7 km NNE of Benton, Tennessee
  8. 1.9 1 km NW of Niota, Tennessee
  9. 2.0 3 km SE of Tellico Village, Tennessee
  10. 1.9 11 km SSW of Decatur, Tennessee
  11. 1.6 7 km WSW of Tellico Village, Tennessee
  12. 2.1 11 km SSW of Benton, Tennessee
  13. 2.3 5 km NE of Greenback, Tennessee
  14. 2.2 11 km SSW of Benton, Tennessee
  15. 2.2 7 km SE of Dayton, 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.