QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2md

Earthquake near Lilbourn, MO

No earthquake was likely felt in Lilbourn in the 24 hours to 10:09 am CST (16:09 UTC). The last one was M 2.3, 29 km (18 mi) SSE, at 2:20 pm CDT on 29 October 2026, estimated intensity II (weak) in town. Every earthquake near Lilbourn

This page: a magnitude 2.2 earthquake was recorded 5 km (3 mi) south of Lilbourn, MO, at 9:56 pm CDT on 12 August 2020 (02:56 UTC), 7.6 km deep.

USGS: 2 km SW of Howardville, Missouri

9:56 pm CDT, Aug 12, 2020 · · 7.6 km deep · released about 69 lb of TNT

10 km30 km60 km120 km N New Madrid County 6 kmLake County 27 kmFulton County 39 kmPemiscot County 41 kmMississippi County 42 kmStoddard County 44 kmObion County 47 kmScott County 55 kmDyer County 59 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
9:56 pm CDT on 12 August 2020 ()
Where
5 km (3 mi) south of Lilbourn, MO · earthquakes near Lilbourn
Missouri today
every earthquake in Missouri in the last 24 hours
Magnitude
M 2.2 (md)
Depth
7.6 km below the surface
Felt
no reports yet
Nearest
New Madrid County, 6 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 2281 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 34 km (21 mi) from the epicentre. In Lilbourn, 5 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.

Likely felt in: New Madrid 9 km, intensity II · Portageville 16 km, intensity II · Tiptonville 23 km, intensity II · Malden 31 km, intensity II · East Prairie 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 69 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.2 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 220,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 150,000× the energy of this one
  3. Around the size people start to feel M 3.0 14× the energy of this one
  4. This earthquake M 2.2 about 69 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 36.5508, -89.6198. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
New Madrid County, MO 6 km (4 mi) NNW earthquakes near New Madrid County
Lake County, TN 27 km (17 mi) SSE earthquakes near Lake County
Fulton County, KY 39 km (24 mi) E earthquakes near Fulton County
Pemiscot County, MO 41 km (25 mi) SSW earthquakes near Pemiscot County
Mississippi County, MO 42 km (26 mi) NE earthquakes near Mississippi County
Stoddard County, MO 44 km (28 mi) NW earthquakes near Stoddard County

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

Aftershocks so far

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

  1. 2.6 8 km N of New Madrid, Missouri
  2. 1.7 8 km NW of Tiptonville, Tennessee
  3. 1.7 7 km SW of Caruthersville, Missouri
  4. 2.0 8 km NNW of Tiptonville, Tennessee
  5. 2.3 3 km NW of Marston, Missouri
  6. 1.9 6 km ESE of Marston, Missouri
  7. 1.7 3 km SSW of Caruthersville, Missouri
  8. 2.0 5 km SE of Tiptonville, Tennessee
  9. 1.6 5 km NW of Ridgely, Tennessee
  10. 2.3 2 km NW of Marston, Missouri
  11. 1.6 9 km S of Ridgely, Tennessee
  12. 1.6 2 km NW of Ridgely, Tennessee
  13. 2.5 8 km SW of Caruthersville, Missouri
  14. 1.5 2 km S of Howardville, Missouri
  15. 2.0 6 km E of Ridgely, 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.