QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8md

Earthquake near East Prairie, MO

No earthquake was likely felt in East Prairie in the 24 hours to 9:27 am CST (15:27 UTC). The last one was M 1.9, 13 km (8 mi) W, at 12:12 am CDT on 28 July 2026, estimated intensity II (weak) in town. Every earthquake near East Prairie

This page: a magnitude 1.8 earthquake was recorded 8 km (5 mi) west of East Prairie, MO, at 11:36 am CDT on 9 October 2016 (16:36 UTC), 15 km deep.

USGS: 7 km W of East Prairie, Missouri

11:36 am CDT, Oct 9, 2016 · · 15 km deep · released about 14 lb of TNT

10 km30 km60 km120 km N Mississippi County 17 kmNew Madrid County 25 kmScott County 32 kmFulton County 35 kmStoddard County 43 kmCarlisle County 45 kmHickman County 46 kmAlexander County 47 kmLake County 49 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
11:36 am CDT on 9 October 2016 ()
Where
8 km (5 mi) west of East Prairie, MO · earthquakes near East Prairie
Missouri today
every earthquake in Missouri in the last 24 hours
Magnitude
M 1.8 (md)
Depth
15 km below the surface
Felt
no reports yet
Nearest
Mississippi County, 17 km ENE
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 3684 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 3 km (2 mi) from the epicentre. In East Prairie, 8 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.

Earthquakes near other towns within 30 km: Sikeston, Charleston, New Madrid, Lilbourn.

How big was it?

This earthquake released about 14 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,100,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 790,000× the energy of this one
  3. Around the size people start to feel M 3.0 70× the energy of this one
  4. This earthquake M 1.8 about 14 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 36.7700, -89.4743. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Mississippi County, MO 17 km (11 mi) ENE earthquakes near Mississippi County
New Madrid County, MO 25 km (16 mi) SW earthquakes near New Madrid County
Scott County, MO 32 km (20 mi) NNW earthquakes near Scott County
Fulton County, KY 35 km (22 mi) SE earthquakes near Fulton County
Stoddard County, MO 43 km (27 mi) WNW earthquakes near Stoddard County
Carlisle County, KY 45 km (28 mi) ENE earthquakes near Carlisle 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. 2.0 6 km WNW of Marston, Missouri
  2. 2.3 6 km WNW of Marston, Missouri
  3. 1.6 4 km NW of Marston, Missouri
  4. 1.6 4 km WSW of Tiptonville, Tennessee
  5. 3.3 9 km ESE of Wyatt, Missouri
  6. 3.0 0 km SSE of Howardville, Missouri
  7. 1.9 5 km WNW of Tiptonville, Tennessee
  8. 2.3 1 km SSW of Lilbourn, Missouri
  9. 2.7 3 km WNW of Tiptonville, Tennessee
  10. 1.5 9 km NW of Tiptonville, Tennessee
  11. 2.1 1 km ENE of Risco, Missouri
  12. 2.0 5 km WNW of Tiptonville, Tennessee
  13. 2.2 7 km NNW of Tiptonville, Tennessee
  14. 2.7 4 km SSW of Cairo, Illinois
  15. 1.8 8 km N of New Madrid, 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.