QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6md

1 km ENE of Portageville, Missouri

· 16 km deep · released about 9 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N New Madrid County 18 kmLake County 21 kmPemiscot County 27 kmFulton County 46 kmDunklin County 46 kmObion County 48 kmDyer County 49 kmStoddard County 52 kmMississippi County 55 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 1.6 (md)
Depth
16 km below the surface
Felt
no reports yet
Nearest
New Madrid County, 18 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3383 days ago

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

How big was it?

This earthquake released about 9 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,700,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,200,000× the energy of this one
  3. Around the size people start to feel M 3.0 110× the energy of this one
  4. This earthquake M 1.6 about 9 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 36.4340, -89.6800. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
New Madrid County, MO 18 km (11 mi) S of here earthquakes near New Madrid County
Lake County, TN 21 km (13 mi) WNW of here earthquakes near Lake County
Pemiscot County, MO 27 km (17 mi) NNE of here earthquakes near Pemiscot County
Fulton County, KY 46 km (29 mi) WSW of here earthquakes near Fulton County
Dunklin County, MO 46 km (29 mi) NE of here earthquakes near Dunklin County
Obion County, TN 48 km (30 mi) W of here earthquakes near Obion 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. 2.7 0 km NNW of Howardville, Missouri
  2. 1.5 9 km NW of Tiptonville, Tennessee
  3. 1.7 4 km S of Holland, Missouri
  4. 1.7 9 km S of Ridgely, Tennessee
  5. 2.0 southeastern Missouri
  6. 1.9 3 km NW of Ridgely, Tennessee
  7. 2.1 6 km WNW of Marston, Missouri
  8. 1.9 2 km SW of Tiptonville, Tennessee
  9. 2.1 5 km SW of Caruthersville, Missouri
  10. 1.6 9 km SE of Matthews, Missouri
  11. 1.7 4 km NW of Marston, Missouri
  12. 2.1 10 km N of New Madrid, Missouri
  13. 2.5 2 km N of Marston, Missouri
  14. 2.0 7 km NW of Dyersburg, Tennessee
  15. 2.2 1 km ESE of Risco, 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.