Earthquake · reviewed by a seismologist
M 1.8md
southeastern Missouri
- When
- Magnitude
- M 1.8 (md)
- Depth
- 8.8 km below the surface
- Felt
- 1 report · strongest reported intensity II
- Nearest
- Lake County, 11 km NNE
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 1361 days ago
This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 1 person has reported feeling it to USGS.
How big was it?
This earthquake released about 16 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 5.8 970,000× the energy of this one
- Magna, Utah 2020 M 5.7 680,000× the energy of this one
- Around the size people start to feel M 3.0 61× the energy of this one
- This earthquake M 1.8 about 16 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 36.2427, -89.5200. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| Lake County, TN | 11 km (7 mi) | SSW of here | earthquakes near Lake County |
| Dyer County, TN | 24 km (15 mi) | NNW of here | earthquakes near Dyer County |
| Pemiscot County, MO | 24 km (15 mi) | E of here | earthquakes near Pemiscot County |
| Obion County, TN | 36 km (22 mi) | WSW of here | earthquakes near Obion County |
| New Madrid County, MO | 41 km (25 mi) | SSE of here | earthquakes near New Madrid County |
| Fulton County, KY | 46 km (28 mi) | SW of here | earthquakes near Fulton County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
60 earthquakes have been recorded within 50 km since this one.
- 1.7 6 km NW of Tiptonville, Tennessee
- 1.9 southeastern Missouri
- 1.7 5 km ESE of Marston, Missouri
- 2.2 11 km NNW of Dyersburg, Tennessee
- 2.1 southeastern Missouri
- 2.6 9 km ENE of Steele, Missouri
- 1.8 southeastern Missouri
- 1.7 4 km NNE of Ridgely, Tennessee
- 1.6 southeastern Missouri
- 2.0 6 km ENE of Steele, Missouri
- 2.1 7 km SE of Marston, Missouri
- 1.6 5 km SE of Marston, Missouri
- 2.0 4 km NW of Marston, Missouri
- 3.1 7 km S of Catron, Missouri
- 1.6 7 km NW of Ridgely, Tennessee
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.