QuakeIndex

Earthquake · reviewed by a seismologist

M 3.4md

Earthquake near Maynardville, TN

No earthquake was likely felt in Maynardville in the 24 hours to 2:04 pm EST (19:04 UTC). The last one was M 2.3, 24 km (15 mi) E, at 2:41 am EDT on 9 July 2026, estimated intensity II (weak) in town; 1 felt report to USGS. Every earthquake near Maynardville

This page: a magnitude 3.4 earthquake was recorded 7 km (5 mi) northeast of Maynardville, TN, at 3:56 pm EST on 5 March 2019 (20:56 UTC), 17 km deep. 1,709 people have reported feeling it to USGS.

USGS: 7 km NE of Maynardville, Tennessee

41 km (25 mi) NNE of Knoxville, TN

3:56 pm EST, Mar 5, 2019 · · 17 km deep · released about 1.7 tons of TNT

10 km30 km60 km120 km N Union County 9 kmGrainger County 20 kmClaiborne County 24 kmJefferson County 38 kmKnox County 38 kmCampbell County 40 kmHamblen County 43 kmAnderson County 46 kmBell County 48 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
3:56 pm EST on 5 March 2019 ()
Where
7 km (5 mi) northeast of Maynardville, TN · earthquakes near Maynardville
Magnitude
M 3.4 (md)
Depth
17 km below the surface
Felt
1,709 reports · strongest reported intensity V
Nearest
Union County, 9 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2484 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

At this magnitude and depth, people at rest would likely notice it out to about 260 km (162 mi) from the epicentre. In Maynardville, 7 km away, the estimate is intensity III (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: Mascot 26 km, intensity III · Fincastle 31 km, intensity III · Knoxville 41 km, intensity III · Seymour 45 km, intensity III. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 1.7 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.4 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 99,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 4,400× the energy of this one
  3. Magna, Utah 2020 M 5.7 3,100× the energy of this one
  4. This earthquake M 3.4 about 1.7 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 3.6× more

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 36.2955, -83.7357. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Union County, TN 9 km (6 mi) W earthquakes near Union County
Grainger County, TN 20 km (13 mi) E earthquakes near Grainger County
Claiborne County, TN 24 km (15 mi) NNE earthquakes near Claiborne County
Jefferson County, TN 38 km (24 mi) SE earthquakes near Jefferson County
Knox County, TN 38 km (24 mi) SSW earthquakes near Knox County
Campbell County, TN 40 km (25 mi) WNW earthquakes near Campbell County

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

Aftershocks so far

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

  1. 1.9 1 km WSW of Plainview, Tennessee
  2. 2.2 9 km W of Clinton, Tennessee
  3. 2.4 Kentucky-Tennessee border region
  4. 2.4 Tennessee-North Carolina border region
  5. 2.6 Kentucky-Tennessee border region
  6. 2.7 3 km S of Blaine, Tennessee
  7. 2.8 Kentucky-Tennessee border region
  8. 2.0 3 km E of Rutledge, Tennessee
  9. 2.2 Kentucky-Tennessee border region
  10. 2.3 4 km E of Harrogate, Tennessee
  11. 2.2 12 km SW of Pathfork, Kentucky
  12. 2.5 8 km WSW of New Market, Tennessee
  13. 2.0 6 km WSW of New Tazewell, Tennessee
  14. 2.4 7 km N of Dandridge, Tennessee
  15. 2.3 7 km N of Dandridge, 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.