QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8md

Earthquake near Paducah, KY

No earthquake was likely felt in Paducah in the 24 hours to 7:05 pm CST (01:05 UTC). The last one was M 2.5, 16 km (10 mi) W, at 11:35 pm CDT on 19 August 2026, estimated intensity II (weak) in town; 66 felt reports to USGS. Every earthquake near Paducah

This page: a magnitude 1.8 earthquake was recorded 32 km (20 mi) west-northwest of Paducah, KY, at 2:01 pm CDT on 4 September 2023 (19:01 UTC), 2.7 km deep. 1 person has reported feeling it to USGS.

USGS: 5 km NNE of Bandana, Kentucky

2:01 pm CDT, Sep 4, 2023 · · 2.7 km deep · released about 17 lb of TNT

10 km30 km60 km120 km N Ballard County 17 kmPulaski County 18 kmMassac County 20 kmMcCracken County 25 kmJohnson County 30 kmAlexander County 37 kmCarlisle County 37 kmPope County 43 kmUnion County 43 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
2:01 pm CDT on 4 September 2023 ()
Where
32 km (20 mi) west-northwest of Paducah, KY · earthquakes near Paducah
Kentucky today
every earthquake in Kentucky in the last 24 hours
Magnitude
M 1.8 (md)
Depth
2.7 km below the surface
Felt
1 report · strongest reported intensity I
Nearest
Ballard County, 17 km SSW
Nearest mapped fault
St. Louis-Cape Girardeau liquefaction features, 4 km from its surface trace — near is not the same as on
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1158 days ago

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

At this magnitude and depth, people at rest would likely notice it out to about 18 km (11 mi) from the epicentre. In Paducah, 32 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: La Center, Metropolis, Vienna, Massac.

How big was it?

This earthquake released about 17 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 5.8 900,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 640,000× the energy of this one
  3. Around the size people start to feel M 3.0 57× the energy of this one
  4. This earthquake M 1.8 about 17 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 37.1917, -88.9318. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Ballard County, KY 17 km (11 mi) SSW earthquakes near Ballard County
Pulaski County, IL 18 km (11 mi) W earthquakes near Pulaski County
Massac County, IL 20 km (13 mi) E earthquakes near Massac County
McCracken County, KY 25 km (15 mi) SE earthquakes near McCracken County
Johnson County, IL 30 km (19 mi) N earthquakes near Johnson County
Alexander County, IL 37 km (23 mi) W earthquakes near Alexander County

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

Aftershocks so far

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

  1. 2.5 6 km NW of Massac, Kentucky
  2. 2.3 4 km SSW of Burna, Kentucky
  3. 2.0 3 km NE of Ullin, Illinois
  4. 2.4 2 km NNE of Wilson City, Missouri
  5. 1.6 3 km WNW of Mill Creek, Illinois
  6. 1.9 5 km ENE of Kevil, Kentucky
  7. 2.1 1 km WSW of Mill Creek, Illinois
  8. 2.2 4 km ENE of Olmsted, Illinois
  9. 1.6 Illinois-Kentucky border region

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.