QuakeIndex

Earthquake · reviewed by a seismologist

M 2.8md

Earthquake near Valley Park, MO

No earthquake was likely felt in Valley Park in the 24 hours to 3:54 am CST (09:54 UTC). The last one was M 3.5, 220 km (137 mi) E, at 2:05 am CDT on 29 June 2026, estimated intensity II (weak) in town; 392 felt reports to USGS. Every earthquake near Valley Park

This page: a magnitude 2.8 earthquake was recorded 2 km (1 mi) south-southwest of Valley Park, MO, at 5:30 pm CDT on 29 April 2022 (22:30 UTC), 7.9 km deep. 4,323 people have reported feeling it to USGS.

USGS: 1 km SSW of Peerless Park, Missouri

25 km (16 mi) WSW of St. Louis, MO

5:30 pm CDT, Apr 29, 2022 · · 7.9 km deep · released about 550 lb of TNT

10 km30 km60 km120 km N St. Louis County 13 kmSt. Louis city 25 kmJefferson County 30 kmSt. Charles County 32 kmMonroe County 39 kmSt. Clair County 50 kmFranklin County 52 kmMadison County 62 kmJersey County 62 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
5:30 pm CDT on 29 April 2022 ()
Where
2 km (1 mi) south-southwest of Valley Park, MO · earthquakes near Valley Park
Missouri today
every earthquake in Missouri in the last 24 hours
Magnitude
M 2.8 (md)
Depth
7.9 km below the surface
Felt
4,323 reports · strongest reported intensity V
Nearest
St. Louis County, 13 km NNE
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 814 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 63 km (39 mi) from the epicentre. In Valley Park, 2 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: Murphy, Fenton, Winchester, Manchester, Sunset Hills, Ballwin.

How big was it?

This earthquake released about 550 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 28,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 19,000× the energy of this one
  3. Around the size people start to feel M 3.0 1.7× the energy of this one
  4. This earthquake M 2.8 about 550 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 38.5290, -90.4997. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
St. Louis County, MO 13 km (8 mi) NNE earthquakes near St. Louis County
St. Louis city, MO 25 km (16 mi) ENE earthquakes near St. Louis city
Jefferson County, MO 30 km (19 mi) S earthquakes near Jefferson County
St. Charles County, MO 32 km (20 mi) NNW earthquakes near St. Charles County
Monroe County, IL 39 km (25 mi) SE earthquakes near Monroe County
St. Clair County, IL 50 km (31 mi) E earthquakes near St. Clair County

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

Aftershocks so far

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

  1. 2.0 6 km SSW of Valmeyer, Illinois
  2. 2.4 3 km ESE of Fenton, Missouri
  3. 1.7 3 km WNW of Olympian Village, Missouri
  4. 2.3 4 km S of Valmeyer, Illinois
  5. 2.3 4 km E of Herculaneum, Missouri
  6. 2.6 1 km S of Old Monroe, Missouri
  7. 2.5 eastern 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.