QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9md

Earthquake near Cape Girardeau, MO

No earthquake was likely felt in Cape Girardeau in the 24 hours to 9:28 pm CST (03:28 UTC). The last one was M 3.5, 195 km (121 mi) NE, at 2:05 am CDT on 29 June 2026, estimated intensity II (weak) in town; 392 felt reports to USGS. Every earthquake near Cape Girardeau

This page: a magnitude 1.9 earthquake was recorded 46 km (29 mi) southeast of Cape Girardeau, MO, at 5:27 am CDT on 1 July 2023 (10:27 UTC), 5.6 km deep. 1 person has reported feeling it to USGS.

USGS: 4 km WNW of Barlow, Kentucky

5:27 am CDT, Jul 1, 2023 · · 5.6 km deep · released about 19 lb of TNT

10 km30 km60 km120 km N Ballard County 7 kmPulaski County 16 kmAlexander County 26 kmCarlisle County 26 kmMississippi County 33 kmMcCracken County 33 kmMassac County 37 kmScott County 43 kmHickman 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
5:27 am CDT on 1 July 2023 ()
Where
46 km (29 mi) southeast of Cape Girardeau, MO · earthquakes near Cape Girardeau
Kentucky today
every earthquake in Kentucky in the last 24 hours
Magnitude
M 1.9 (md)
Depth
5.6 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Ballard County, 7 km ESE
Nearest mapped fault
St. Louis-Cape Girardeau liquefaction features, 19 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 1227 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 Cape Girardeau, 46 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, Cairo, Charleston.

How big was it?

This earthquake released about 19 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 810,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 580,000× the energy of this one
  3. Around the size people start to feel M 3.0 51× the energy of this one
  4. This earthquake M 1.9 about 19 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 37.0743, -89.0890. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Ballard County, KY 7 km (5 mi) ESE earthquakes near Ballard County
Pulaski County, IL 16 km (10 mi) NNW earthquakes near Pulaski County
Alexander County, IL 26 km (16 mi) WNW earthquakes near Alexander County
Carlisle County, KY 26 km (16 mi) SSE earthquakes near Carlisle County
Mississippi County, MO 33 km (21 mi) SW earthquakes near Mississippi County
McCracken County, KY 33 km (21 mi) E earthquakes near McCracken County

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

Aftershocks so far

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

  1. 2.5 6 km NW of Massac, Kentucky
  2. 1.8 7 km WNW of East Prairie, Missouri
  3. 1.8 6 km S of Bertrand, Missouri
  4. 1.7 5 km SSE of Bertrand, Missouri
  5. 1.6 7 km W of East Prairie, Missouri
  6. 1.9 3 km SSE of Pinhook, Missouri
  7. 2.0 3 km NE of Ullin, Illinois
  8. 2.4 2 km NNE of Wilson City, Missouri
  9. 2.3 5 km SSW of Charleston, Missouri
  10. 1.6 3 km WNW of Mill Creek, Illinois
  11. 1.9 5 km ENE of Kevil, Kentucky
  12. 2.1 1 km WSW of Mill Creek, Illinois
  13. 1.9 4 km SSE of Bertrand, Missouri
  14. 2.2 4 km ENE of Olmsted, Illinois
  15. 1.9 3 km SE of Bertrand, Missouri

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.