QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2md

Southeastern Missouri

Yes. A magnitude 2.2 earthquake was recorded in Southeastern Missouri, 79 km (49 mi) S of St. Louis, MO, at 6:21 pm CDT on 14 March 2019 (23:21 UTC), 7.6 km deep. 3 people have reported feeling it to USGS.

79 km (49 mi) S of St. Louis, MO

· 7.6 km deep · released about 52 lb of TNT

10 km30 km60 km120 km N Ste. Genevieve County 10 kmSt. Francois County 23 kmMonroe County 39 kmRandolph County 41 kmJefferson County 44 kmPerry County 47 kmMadison County 51 kmIron County 51 kmWashington County 56 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
Missouri today
every earthquake in Missouri in the last 24 hours
Magnitude
M 2.2 (md)
Depth
7.6 km below the surface
Felt
3 reports · strongest reported intensity III
Nearest
Ste. Genevieve County, 10 km ESE
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 2720 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 30 km (19 mi) from the epicentre. 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: Sainte Genevieve, Farmington, Esther, Park Hills, Flat River, Desloge.

How big was it?

This earthquake released about 52 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 5.8 290,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 200,000× the energy of this one
  3. Around the size people start to feel M 3.0 18× the energy of this one
  4. This earthquake M 2.2 about 52 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 lists one earthquake of M5 or more within 50 km:

  1. 5.1 Southwestern Illinois · 20 km NNE of this epicentre

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 37.9298, -90.2600. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Ste. Genevieve County, MO 10 km (6 mi) ESE earthquakes near Ste. Genevieve County
St. Francois County, MO 23 km (14 mi) SW earthquakes near St. Francois County
Monroe County, IL 39 km (24 mi) N earthquakes near Monroe County
Randolph County, IL 41 km (25 mi) ENE earthquakes near Randolph County
Jefferson County, MO 44 km (27 mi) NW earthquakes near Jefferson County
Perry County, MO 47 km (29 mi) ESE earthquakes near Perry 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. 2.0 14 km SSE of Weingarten, Missouri
  2. 2.0 6 km SSW of Valmeyer, Illinois
  3. 2.2 15 km SW of Ozora, Missouri
  4. 1.7 3 km WNW of Olympian Village, Missouri
  5. 2.3 4 km S of Valmeyer, Illinois
  6. 2.4 8 km SW of Ozora, Missouri
  7. 2.3 4 km E of Herculaneum, Missouri
  8. 1.9 5 km NW of Weingarten, Missouri
  9. 2.5 eastern Missouri
  10. 2.2 4 km E of Bonne Terre, Missouri
  11. 2.2 5 km NNE of Terre du Lac, Missouri
  12. 1.9 5 km W of Terre du Lac, Missouri
  13. 2.2 6 km E of Ellis Grove, Illinois
  14. 2.1 7 km SSW of Olympian Village, Missouri
  15. 2.2 2 km SE of De Soto, 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.