QuakeIndex

Earthquake · reviewed by a seismologist

M 2.0md

Earthquake near Maryville, TN

USGS: 1 km SW of Maryville, Tennessee

25 km (16 mi) S of Knoxville, TN

1:32 pm EDT, Aug 3, 2018 · · 3.6 km deep · released about 30 lb of TNT

Every earthquake near Maryville Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Blount County 8 kmKnox County 28 kmLoudon County 30 kmMonroe County 41 kmSevier County 42 kmAnderson County 46 kmGraham County 46 kmRoane County 50 kmSwain County 51 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
1:32 pm EDT on 3 August 2018 ()
Where
in Maryville, TN · earthquakes near Maryville
Magnitude
M 2.0 (md)
Depth
3.6 km below the surface
Felt
2 reports · strongest reported intensity III
Nearest
Blount County, 8 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2908 days ago

A magnitude 2.0 earthquake was recorded in Maryville, TN, at 1:32 pm EDT on 3 August 2018 (17:32 UTC). 2 people have reported feeling it to USGS. This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

Earthquakes near other towns within 30 km: Alcoa, Eagleton Village, Louisville, Wildwood, Greenback, Farragut.

How big was it?

This earthquake released about 30 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.0 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 500,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 350,000× the energy of this one
  3. Around the size people start to feel M 3.0 32× the energy of this one
  4. This earthquake M 2.0 about 30 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 35.7437, -83.9843. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Blount County, TN 8 km (5 mi) SE earthquakes near Blount County
Knox County, TN 28 km (17 mi) N earthquakes near Knox County
Loudon County, TN 30 km (19 mi) W earthquakes near Loudon County
Monroe County, TN 41 km (25 mi) SW earthquakes near Monroe County
Sevier County, TN 42 km (26 mi) E earthquakes near Sevier County
Anderson County, TN 46 km (28 mi) NNW earthquakes near Anderson County

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

Aftershocks so far

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

  1. 1.7 5 km WNW of Sevierville, Tennessee
  2. 2.2 5 km W of Sevierville, Tennessee
  3. 2.1 9 km ESE of Vonore, Tennessee
  4. 2.0 11 km ESE of Vonore, Tennessee
  5. 1.7 4 km WNW of Madisonville, Tennessee
  6. 2.6 2 km SSE of Mascot, Tennessee
  7. 1.7 11 km ESE of Madisonville, Tennessee
  8. 2.4 2 km WSW of Sweetwater, Tennessee
  9. 2.1 2 km W of Alcoa, Tennessee
  10. 1.6 3 km SSE of Garland, Tennessee
  11. 1.9 4 km SSE of Garland, Tennessee
  12. 1.9 10 km ESE of Vonore, Tennessee
  13. 2.0 2 km WNW of Greenback, Tennessee
  14. 1.8 3 km ENE of Madisonville, Tennessee
  15. 2.2 5 km S of Sweetwater, 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.