QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1md

Earthquake near Dayton, TN

USGS: 1 km E of Dayton, Tennessee

53 km (33 mi) NNE of Chattanooga, TN · 37 km (23 mi) NNW of Cleveland, TN

8:19 pm EDT, Jun 30, 2016 · · 14 km deep · released about 44 lb of TNT

Every earthquake near Dayton Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Rhea County 12 kmMeigs County 16 kmBledsoe County 22 kmMcMinn County 35 kmBradley County 40 kmSequatchie County 40 kmHamilton County 42 kmVan Buren County 48 kmCumberland 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
8:19 pm EDT on 30 June 2016 ()
Where
in Dayton, TN · earthquakes near Dayton
Magnitude
M 2.1 (md)
Depth
14 km below the surface
Felt
no reports yet
Nearest
Rhea County, 12 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3746 days ago

A magnitude 2.1 earthquake was recorded in Dayton, TN, at 8:19 pm EDT on 30 June 2016 (00:19 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

Earthquakes near other towns within 30 km: Graysville, Sale Creek, Decatur, Pikeville, Spring City.

How big was it?

This earthquake released about 44 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 340,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 240,000× the energy of this one
  3. Around the size people start to feel M 3.0 22× the energy of this one
  4. This earthquake M 2.1 about 44 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 35.4950, -84.9913. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Rhea County, TN 12 km (8 mi) NNE earthquakes near Rhea County
Meigs County, TN 16 km (10 mi) E earthquakes near Meigs County
Bledsoe County, TN 22 km (14 mi) WNW earthquakes near Bledsoe County
McMinn County, TN 35 km (21 mi) ESE earthquakes near McMinn County
Bradley County, TN 40 km (25 mi) SSE earthquakes near Bradley County
Sequatchie County, TN 40 km (25 mi) WSW earthquakes near Sequatchie County

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

Aftershocks so far

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

  1. 2.1 12 km NNE of Decatur, Tennessee
  2. 2.1 3 km NNE of Athens, Tennessee
  3. 2.3 10 km SE of Dayton, Tennessee
  4. 2.0 11 km SE of Dayton, Tennessee
  5. 2.2 10 km SE of Dayton, Tennessee
  6. 1.7 1 km N of Decatur, Tennessee
  7. 1.7 11 km NNE of Decatur, Tennessee
  8. 2.2 2 km SSE of Englewood, Tennessee
  9. 2.1 2 km SSE of Englewood, Tennessee
  10. 2.1 12 km NNE of Decatur, TN
  11. 2.1 11 km NNE of Decatur, Tennessee
  12. 1.8 10 km NNE of Decatur, Tennessee
  13. 2.5 11 km NNE of Decatur, Tennessee
  14. 1.8 Tennessee
  15. 1.7 11 km NNE of Decatur, 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.