QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4md

Earthquake near Maryville, TN

No earthquake was likely felt in Maryville in the 24 hours to 5:11 am EST (10:11 UTC). The last one was M 2.1, 15 km (9 mi) NNE, at 2:55 pm EST on 5 November 2026, estimated intensity II (weak) in town. Every earthquake near Maryville

This page: a magnitude 2.4 earthquake was recorded 48 km (30 mi) south-southwest of Maryville, TN, at 4:22 pm EDT on 20 May 2019 (20:22 UTC), 11 km deep. 3 people have reported feeling it to USGS.

USGS: 7 km E of Tellico Plains, Tennessee

71 km (44 mi) SSW of Knoxville, TN

4:22 pm EDT, May 20, 2019 · · 11 km deep · released about 120 lb of TNT

10 km30 km60 km120 km N Monroe County 9 kmCherokee County 29 kmGraham County 34 kmMcMinn County 38 kmLoudon County 42 kmPolk County 42 kmBlount County 44 kmClay County 54 kmFannin 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
4:22 pm EDT on 20 May 2019 ()
Where
48 km (30 mi) south-southwest of Maryville, TN · earthquakes near Maryville
Magnitude
M 2.4 (md)
Depth
11 km below the surface
Felt
3 reports · strongest reported intensity III
Nearest
Monroe County, 9 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2726 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 41 km (25 mi) from the epicentre. In Maryville, 48 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 36 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 120 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 120,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 86,000× the energy of this one
  3. Around the size people start to feel M 3.0 7.7× the energy of this one
  4. This earthquake M 2.4 about 120 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 35.3703, -84.2070. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Monroe County, TN 9 km (6 mi) NNW earthquakes near Monroe County
Cherokee County, NC 29 km (18 mi) SSE earthquakes near Cherokee County
Graham County, NC 34 km (21 mi) E earthquakes near Graham County
McMinn County, TN 38 km (24 mi) W earthquakes near McMinn County
Loudon County, TN 42 km (26 mi) NNW earthquakes near Loudon County
Polk County, TN 42 km (26 mi) SW earthquakes near Polk County

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

Aftershocks so far

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

  1. 1.6 3 km ENE of Philadelphia, Tennessee
  2. 2.5 11 km SSW of Maryville, Tennessee
  3. 2.5 7 km SE of Maryville, Tennessee
  4. 2.0 3 km SSW of Loudon, Tennessee
  5. 2.1 6 km S of Sweetwater, Tennessee
  6. 2.0 8 km SE of Tellico Plains, Tennessee
  7. 2.4 7 km N of Benton, Tennessee
  8. 1.9 Tennessee
  9. 1.5 4 km WSW of Tellico Village, Tennessee
  10. 2.0 11 km SE of Vonore, Tennessee
  11. 2.4 1 km W of McCaysville, Georgia
  12. 1.9 1 km W of Etowah, Tennessee
  13. 1.9 3 km NNE of Madisonville, Tennessee
  14. 1.9 3 km ESE of Loudon, Tennessee
  15. 2.0 5 km NNE of Tellico Plains, 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.