QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7md

Earthquake near Athens, TN

No earthquake was likely felt in Athens in the 24 hours to 7:29 am EST (12:29 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 1.7 earthquake was recorded 12 km (8 mi) northeast of Athens, TN, at 4:02 pm EST on 18 February 2024 (21:02 UTC), 10 km deep.

USGS: 5 km E of Niota, Tennessee

70 km (44 mi) SW of Knoxville, TN · 51 km (32 mi) NE of Cleveland, TN

4:02 pm EST, Feb 18, 2024 · · 10 km deep · released about 11 lb of TNT

10 km30 km60 km120 km N McMinn County 15 kmMonroe County 23 kmLoudon County 29 kmMeigs County 30 kmRoane County 38 kmRhea County 43 kmPolk County 45 kmBradley County 52 kmBlount County 55 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
4:02 pm EST on 18 February 2024 ()
Where
12 km (8 mi) northeast of Athens, TN · earthquakes near Athens
Magnitude
M 1.7 (md)
Depth
10 km below the surface
Felt
no reports yet
Nearest
McMinn County, 15 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 996 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 8 km (5 mi) from the epicentre. In Athens, 12 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.

Earthquakes near other towns within 30 km: Sweetwater, Madisonville, Etowah, Vonore, Decatur, Loudon.

How big was it?

This earthquake released about 11 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,400,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 970,000× the energy of this one
  3. Around the size people start to feel M 3.0 86× the energy of this one
  4. This earthquake M 1.7 about 11 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 11,000 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 35.5107, -84.4860. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
McMinn County, TN 15 km (10 mi) SW earthquakes near McMinn County
Monroe County, TN 23 km (14 mi) ESE earthquakes near Monroe County
Loudon County, TN 29 km (18 mi) NNE earthquakes near Loudon County
Meigs County, TN 30 km (19 mi) W earthquakes near Meigs County
Roane County, TN 38 km (23 mi) N earthquakes near Roane County
Rhea County, TN 43 km (27 mi) WNW earthquakes near Rhea County

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

Aftershocks so far

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

  1. 1.8 13 km ESE of Tellico Plains, Tennessee
  2. 2.1 0 km S of Loudon, Tennessee
  3. 1.9 2 km NE of Niota, Tennessee
  4. 4.1 21 km SE of Greenback, Tennessee
  5. 2.0 5 km NE of Tellico Plains, Tennessee
  6. 1.6 6 km NW of Madisonville, Tennessee
  7. 1.6 3 km ENE of Sweetwater, Tennessee
  8. 2.1 12 km E of Benton, Tennessee
  9. 1.6 7 km WSW of Tellico Village, Tennessee
  10. 2.0 6 km SSE of Vonore, Tennessee
  11. 1.7 7 km ESE of Sweetwater, Tennessee
  12. 1.8 7 km ESE of Sweetwater, Tennessee
  13. 1.8 5 km S of Louisville, Tennessee
  14. 1.8 6 km SSE of Sweetwater, Tennessee
  15. 2.3 6 km SW of Maryville, 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.