QuakeIndex

Earthquake · reviewed by a seismologist

M 2.0md

Earthquake near Cape Girardeau, MO

No earthquake was likely felt in Cape Girardeau in the 24 hours to 8:41 am CST (14:41 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 2.0 earthquake was recorded 32 km (20 mi) east of Cape Girardeau, MO, at 10:40 am CDT on 31 October 2024 (15:40 UTC), 13 km deep. 5 people have reported feeling it to USGS.

USGS: 3 km NE of Ullin, Illinois

10:40 am CDT, Oct 31, 2024 · · 13 km deep · released about 33 lb of TNT

10 km30 km60 km120 km N Pulaski County 9 kmAlexander County 21 kmUnion County 23 kmBallard County 30 kmJohnson County 30 kmMassac County 41 kmScott County 46 kmMcCracken County 47 kmCape Girardeau 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
10:40 am CDT on 31 October 2024 ()
Where
32 km (20 mi) east of Cape Girardeau, MO · earthquakes near Cape Girardeau
Illinois today
every earthquake in Illinois in the last 24 hours
Magnitude
M 2.0 (md)
Depth
13 km below the surface
Felt
5 reports · strongest reported intensity IV
Nearest
Pulaski County, 9 km SSE
Nearest mapped fault
St. Louis-Cape Girardeau liquefaction features, under 1 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 664 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 22 km (14 mi) from the epicentre. In Cape Girardeau, 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: Jonesboro, Anna, Vienna, Cobden, La Center.

How big was it?

This earthquake released about 33 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.0 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 450,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 320,000× the energy of this one
  3. Around the size people start to feel M 3.0 29× the energy of this one
  4. This earthquake M 2.0 about 33 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 37.2935, -89.1553. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Pulaski County, IL 9 km (6 mi) SSE earthquakes near Pulaski County
Alexander County, IL 21 km (13 mi) SW earthquakes near Alexander County
Union County, IL 23 km (14 mi) NNW earthquakes near Union County
Ballard County, KY 30 km (19 mi) SSE earthquakes near Ballard County
Johnson County, IL 30 km (19 mi) NE earthquakes near Johnson County
Massac County, IL 41 km (25 mi) ESE earthquakes near Massac County

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

Aftershocks so far

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

  1. 2.5 6 km NW of Massac, Kentucky
  2. 1.9 6 km WNW of Cape Girardeau, Missouri
  3. 1.6 11 km WNW of Jonesboro, Illinois

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.