QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6md

Earthquake near Bonne Terre, MO

No earthquake was likely felt in Bonne Terre in the 24 hours to 6:29 am CST (12:29 UTC). The last one was M 3.5, 238 km (148 mi) ENE, at 2:05 am CDT on 29 June 2026, estimated intensity II (weak) in town; 392 felt reports to USGS. Every earthquake near Bonne Terre

This page: a magnitude 2.6 earthquake was recorded 7 km (4 mi) north-northeast of Bonne Terre, MO, at 2:09 am CDT on 11 September 2019 (07:09 UTC), 7.1 km deep. 106 people have reported feeling it to USGS.

USGS: 6 km NNE of Bonne Terre, Missouri

77 km (48 mi) SSW of St. Louis, MO

2:09 am CDT, Sep 11, 2019 · · 7.1 km deep · released about 220 lb of TNT

10 km30 km60 km120 km N St. Francois County 19 kmJefferson County 31 kmWashington County 33 kmSte. Genevieve County 34 kmIron County 42 kmMonroe County 45 kmMadison County 58 kmRandolph County 62 kmFranklin County 68 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
2:09 am CDT on 11 September 2019 ()
Where
7 km (4 mi) north-northeast of Bonne Terre, MO · earthquakes near Bonne Terre
Missouri today
every earthquake in Missouri in the last 24 hours
Magnitude
M 2.6 (md)
Depth
7.1 km below the surface
Felt
106 reports · strongest reported intensity IV
Nearest
St. Francois County, 19 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 2533 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

At this magnitude and depth, people at rest would likely notice it out to about 49 km (30 mi) from the epicentre. In Bonne Terre, 7 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.

Earthquakes near other towns within 30 km: Terre du Lac, Desloge, Leadwood, Park Hills, Flat River, Esther.

How big was it?

This earthquake released about 220 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 70,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 50,000× the energy of this one
  3. Around the size people start to feel M 3.0 4.4× the energy of this one
  4. This earthquake M 2.6 about 220 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 · 32 km ENE 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 37.9788, -90.5273. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
St. Francois County, MO 19 km (12 mi) SSE earthquakes near St. Francois County
Jefferson County, MO 31 km (19 mi) N earthquakes near Jefferson County
Washington County, MO 33 km (20 mi) W earthquakes near Washington County
Ste. Genevieve County, MO 34 km (21 mi) ESE earthquakes near Ste. Genevieve County
Iron County, MO 42 km (26 mi) SSW earthquakes near Iron County
Monroe County, IL 45 km (28 mi) NE earthquakes near Monroe County

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

Aftershocks so far

16 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. 2.0 16 km WNW of Caledonia, Missouri
  9. 1.9 5 km NW of Weingarten, Missouri
  10. 2.5 eastern Missouri
  11. 2.2 4 km E of Bonne Terre, Missouri
  12. 2.2 5 km NNE of Terre du Lac, Missouri
  13. 1.9 5 km W of Terre du Lac, Missouri
  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.