QuakeIndex

Earthquake · reviewed by a seismologist

M 2.8md

6 km ENE of Germantown, Kentucky

· 14 km deep · released about 450 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Mason County 11 kmBracken County 19 kmRobertson County 23 kmBrown County 28 kmFleming County 39 kmNicholas County 40 kmPendleton County 40 kmAdams County 40 kmHarrison County 46 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
Magnitude
M 2.8 (md)
Depth
14 km below the surface
Felt
17 reports · strongest reported intensity III
Nearest
Mason County, 11 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3119 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 17 people have reported feeling it to USGS.

How big was it?

This earthquake released about 450 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 34,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 24,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.1× the energy of this one
  4. This earthquake M 2.8 about 450 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.

Where

Epicentre 38.6785, -83.8958. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mason County, KY 11 km (7 mi) NNW of here earthquakes near Mason County
Bracken County, KY 19 km (12 mi) E of here earthquakes near Bracken County
Robertson County, KY 23 km (15 mi) NE of here earthquakes near Robertson County
Brown County, OH 28 km (18 mi) S of here earthquakes near Brown County
Fleming County, KY 39 km (24 mi) NNW of here earthquakes near Fleming County
Nicholas County, KY 40 km (25 mi) NNE of here earthquakes near Nicholas County

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

Aftershocks so far

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

  1. 1.7 15 km E of Flemingsburg, Kentucky
  2. 2.2 2 km SSE of Concord, Kentucky
  3. 2.2 7 km WSW of Vanceburg, Kentucky
  4. 2.4 8 km SSE of Flemingsburg, Kentucky
  5. 2.4 6 km SSE of Georgetown, Ohio
  6. 2.2 3 km SSW of Bentonville, Ohio
  7. 2.5 3 km SW of Old Washington, Kentucky
  8. 2.1 3 km SE of Ripley, Ohio
  9. 3.0 2 km E of Manchester, Ohio
  10. 2.1 10 km S of Concord, Kentucky
  11. 1.8 13 km ESE of Flemingsburg, Kentucky
  12. 1.8 11 km SE of Maysville, Kentucky
  13. 2.5 5 km NW of Russellville, Ohio
  14. 2.0 6 km SSE of Sardis, Kentucky
  15. 2.1 6 km NW of Ewing, Kentucky

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.