Earthquake · reviewed by a seismologist
M 1.8md
4 km NW of Marston, MO
Yes. A magnitude 1.8 earthquake was recorded 4 km NW of Marston, MO, at 6:14 am CDT on 4 October 2019 (11:14 UTC), 7.5 km deep.
- When
- Magnitude
- M 1.8 (md)
- Depth
- 7.5 km below the surface
- Felt
- no reports yet
- Nearest
- New Madrid County, 5 km N
- 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 2595 days ago
Earthquake alerts for Lilbourn, MO
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Alerts are on for .
Not a warning. An alert comes after USGS publishes a quake, usually minutes after the shaking. For early warning use ShakeAlert, through your phone's Wireless Emergency Alerts or the MyShake app.
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 14 km (9 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.
Likely felt in: New Madrid 11 km, intensity II. Estimated for each town centre; each link is that town's own record.
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.
- Mineral, Virginia 2011 M 5.8 1,100,000× the energy of this one
- Magna, Utah 2020 M 5.7 790,000× the energy of this one
- Around the size people start to feel M 3.0 70× the energy of this one
- 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.
Where
Epicentre 36.5457, -89.6452. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| New Madrid County, MO | 5 km (3 mi) | N | earthquakes near New Madrid County |
| Lake County, TN | 28 km (17 mi) | SSE | earthquakes near Lake County |
| Pemiscot County, MO | 39 km (24 mi) | SSW | earthquakes near Pemiscot County |
| Fulton County, KY | 41 km (25 mi) | E | earthquakes near Fulton County |
| Stoddard County, MO | 43 km (27 mi) | NW | earthquakes near Stoddard County |
| Mississippi County, MO | 44 km (27 mi) | NE | earthquakes near Mississippi County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
59 earthquakes have been recorded within 50 km since this one.
- 1.9 4 km ESE of Marston, Missouri
- 2.5 2 km NE of Ridgely, Tennessee
- 1.8 0 km NNE of Howardville, Missouri
- 2.5 4 km NW of Marston, Missouri
- 2.4 3 km NW of Marston, Missouri
- 1.6 3 km WNW of Marston, Missouri
- 1.6 3 km WNW of Marston, Missouri
- 1.8 3 km WNW of Marston, Missouri
- 1.7 3 km WNW of Marston, Missouri
- 1.9 3 km WNW of Marston, Missouri
- 2.5 3 km NW of Marston, Missouri
- 1.6 3 km WNW of Marston, Missouri
- 1.7 4 km NW of Marston, Missouri
- 1.9 8 km W of Tiptonville, Tennessee
- 1.7 7 km W of East Prairie, 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
- The official USGS event page — the source of record for every value above
- Did you feel it? Report it to USGS — reports go to USGS, not to us
- ShakeMap for this event, when USGS has produced one
QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.