Earthquake · reviewed by a seismologist
M 1.6md
3 km ENE of Risco, Missouri
- When
- Magnitude
- M 1.6 (md)
- Depth
- 12 km below the surface
- Felt
- no reports yet
- Nearest
- New Madrid County, 12 km ENE
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 1728 days ago
This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.
How big was it?
This earthquake released about 7.6 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 2,000,000× the energy of this one
- Magna, Utah 2020 M 5.7 1,400,000× the energy of this one
- Around the size people start to feel M 3.0 130× the energy of this one
- This earthquake M 1.6 about 7.6 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 36.5627, -89.7847. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| New Madrid County, MO | 12 km (7 mi) | WSW of here | earthquakes near New Madrid County |
| Stoddard County, MO | 35 km (22 mi) | SSE of here | earthquakes near Stoddard County |
| Lake County, TN | 37 km (23 mi) | NW of here | earthquakes near Lake County |
| Pemiscot County, MO | 39 km (24 mi) | N of here | earthquakes near Pemiscot County |
| Dunklin County, MO | 52 km (32 mi) | NNE of here | earthquakes near Dunklin County |
| Mississippi County, MO | 53 km (33 mi) | SW of here | earthquakes near Mississippi County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
55 earthquakes have been recorded within 50 km since this one.
- 2.1 7 km SSE of Ridgely, Tennessee
- 2.0 4 km WSW of Tiptonville, Tennessee
- 1.6 5 km SE of Marston, Missouri
- 1.6 8 km NW of Tiptonville, Tennessee
- 2.4 6 km SW of Bernie, Missouri
- 2.0 3 km SSW of Anniston, Missouri
- 1.9 5 km NW of New Madrid, Missouri
- 1.5 3 km WNW of Marston, Missouri
- 1.6 5 km ESE of Ridgely, Tennessee
- 1.7 5 km SSE of Bertrand, Missouri
- 2.6 4 km SE of Howardville, Missouri
- 1.8 2 km N of Bernie, Missouri
- 2.6 3 km SW of Anniston, Missouri
- 1.7 3 km SSW of Anniston, Missouri
- 1.8 7 km ESE of Marston, 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.