QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2md

4 km E of Bonne Terre, Missouri

· 23 km deep · released about 58 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N St. Francois County 13 kmSte. Genevieve County 31 kmWashington County 34 kmJefferson County 37 kmIron County 37 kmMonroe County 48 kmMadison County 52 kmRandolph County 62 kmPerry County 67 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 2.2 (md)
Depth
23 km below the surface
Felt
5 reports · strongest reported intensity III
Nearest
St. Francois County, 13 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1271 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 5 people have reported feeling it to USGS.

How big was it?

This earthquake released about 58 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 5.8 260,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 180,000× the energy of this one
  3. Around the size people start to feel M 3.0 16× the energy of this one
  4. This earthquake M 2.2 about 58 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 37.9273, -90.5083. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
St. Francois County, MO 13 km (8 mi) NNW of here earthquakes near St. Francois County
Ste. Genevieve County, MO 31 km (19 mi) W of here earthquakes near Ste. Genevieve County
Washington County, MO 34 km (21 mi) E of here earthquakes near Washington County
Jefferson County, MO 37 km (23 mi) S of here earthquakes near Jefferson County
Iron County, MO 37 km (23 mi) NNE of here earthquakes near Iron County
Monroe County, IL 48 km (30 mi) SW of here earthquakes near Monroe County

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

Aftershocks so far

9 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

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.