QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4md

Earthquake near Portageville, MO

No earthquake was likely felt in Portageville in the 24 hours to 8:00 am CST (14:00 UTC). The last one was M 2.3, 17 km (11 mi) SE, at 2:20 pm CDT on 29 October 2026, estimated intensity II (weak) in town. Every earthquake near Portageville

This page: a magnitude 2.4 earthquake was recorded 8 km (5 mi) east-northeast of Portageville, MO, at 10:15 am CST on 30 November 2021 (16:15 UTC), 13 km deep. 4 people have reported feeling it to USGS.

USGS: 6 km S of Marston, Missouri

10:15 am CST, Nov 30, 2021 · · 13 km deep · released about 120 lb of TNT

10 km30 km60 km120 km N New Madrid County 15 kmLake County 18 kmPemiscot County 32 kmFulton County 40 kmObion County 43 kmDyer County 49 kmMississippi County 50 kmDunklin County 53 kmStoddard County 53 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
10:15 am CST on 30 November 2021 ()
Where
8 km (5 mi) east-northeast of Portageville, MO · earthquakes near Portageville
Missouri today
every earthquake in Missouri in the last 24 hours
Magnitude
M 2.4 (md)
Depth
13 km below the surface
Felt
4 reports · strongest reported intensity II
Nearest
New Madrid County, 15 km NNW
Nearest mapped fault
Reelfoot scarp and New Madrid seismic zone, 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 1808 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 39 km (24 mi) from the epicentre. In Portageville, 8 km away, the estimate is intensity III (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.

Likely felt in: Portageville 8 km, intensity III · Tiptonville 16 km, intensity II · New Madrid 16 km, intensity II · Caruthersville 30 km, intensity II · Malden 33 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 120 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 130,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 92,000× the energy of this one
  3. Around the size people start to feel M 3.0 8.2× the energy of this one
  4. This earthquake M 2.4 about 120 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 36.4602, -89.6168. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
New Madrid County, MO 15 km (10 mi) NNW earthquakes near New Madrid County
Lake County, TN 18 km (11 mi) SE earthquakes near Lake County
Pemiscot County, MO 32 km (20 mi) SSW earthquakes near Pemiscot County
Fulton County, KY 40 km (25 mi) ENE earthquakes near Fulton County
Obion County, TN 43 km (27 mi) ESE earthquakes near Obion County
Dyer County, TN 49 km (31 mi) SSE earthquakes near Dyer County

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

Aftershocks so far

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

  1. 1.9 7 km ESE of Marston, Missouri
  2. 2.0 7 km ESE of Marston, Missouri
  3. 1.6 3 km W of Tiptonville, Tennessee
  4. 1.8 5 km ENE of Steele, Missouri
  5. 1.5 10 km WNW of Newbern, Tennessee
  6. 1.6 6 km NNW of Ridgely, Tennessee
  7. 2.4 6 km ESE of Marston, Missouri
  8. 1.6 2 km NE of Marston, Missouri
  9. 1.7 6 km NW of Ridgely, Tennessee
  10. 2.0 9 km SW of Caruthersville, Missouri
  11. 1.9 6 km SE of Tiptonville, Tennessee
  12. 1.6 4 km ESE of Howardville, Missouri
  13. 1.5 11 km SSE of Ridgely, Tennessee
  14. 1.6 7 km NE of Caruthersville, Missouri
  15. 1.6 9 km NNW of Tiptonville, 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.