QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8md

Earthquake near Maryville, TN

No earthquake was likely felt in Maryville in the 24 hours to 3:35 pm EST (20:35 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 1.8 earthquake was recorded 3 km (2 mi) west of Maryville, TN, at 12:35 am EDT on 23 May 2024 (04:35 UTC), 22 km deep.

USGS: 3 km W of Maryville, Tennessee

24 km (15 mi) SSW of Knoxville, TN

12:35 am EDT, May 23, 2024 · · 22 km deep · released about 14 lb of TNT

10 km30 km60 km120 km N Blount County 11 kmKnox County 26 kmLoudon County 28 kmMonroe County 41 kmAnderson County 43 kmSevier County 43 kmRoane County 48 kmGraham County 49 kmSwain 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
12:35 am EDT on 23 May 2024 ()
Where
3 km (2 mi) west of Maryville, TN · earthquakes near Maryville
Magnitude
M 1.8 (md)
Depth
22 km below the surface
Felt
no reports yet
Nearest
Blount County, 11 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 902 days ago

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

At this magnitude and depth it was probably too small to be felt, even directly above it. In Maryville, 3 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: Alcoa, Eagleton Village, Louisville, Wildwood, Greenback, Farragut.

How big was it?

This earthquake released about 14 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,100,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 760,000× the energy of this one
  3. Around the size people start to feel M 3.0 68× the energy of this one
  4. This earthquake M 1.8 about 14 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 35.7620, -84.0060. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Blount County, TN 11 km (7 mi) SE earthquakes near Blount County
Knox County, TN 26 km (16 mi) NNE earthquakes near Knox County
Loudon County, TN 28 km (17 mi) W earthquakes near Loudon County
Monroe County, TN 41 km (26 mi) SSW earthquakes near Monroe County
Anderson County, TN 43 km (27 mi) NNW earthquakes near Anderson County
Sevier County, TN 43 km (27 mi) E earthquakes near Sevier 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. 2.3 10 km ENE of Tellico Plains, Tennessee
  2. 2.4 6 km SSE of Vonore, Tennessee
  3. 2.5 6 km SE of Seymour, Tennessee
  4. 1.9 5 km SSE of Vonore, Tennessee
  5. 1.9 1 km ENE of Friendsville, Tennessee
  6. 2.2 6 km SSE of Vonore, Tennessee
  7. 2.3 11 km ESE of Mascot, Tennessee
  8. 1.9 20 km WNW of Lake Santeetlah, North Carolina
  9. 2.2 20 km WNW of Lake Santeetlah, North Carolina
  10. 2.6 2 km E of Greenback, Tennessee
  11. 2.0 8 km ENE of Knoxville, Tennessee
  12. 1.8 13 km ESE of Tellico Plains, Tennessee
  13. 2.1 0 km S of Loudon, Tennessee
  14. 4.1 21 km SE of Greenback, Tennessee
  15. 2.0 8 km W of Seymour, 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.