Earthquake · reviewed by a seismologist
M 2.4md
8 km SW of Ozora, Missouri
- When
- Magnitude
- M 2.4 (md)
- Depth
- 11 km below the surface
- Felt
- 9 reports · strongest reported intensity II
- Nearest
- Ste. Genevieve County, 9 km NNW
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 546 days ago
This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 9 people have reported feeling it to USGS.
How big was it?
This earthquake released about 110 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 140,000× the energy of this one
- Magna, Utah 2020 M 5.7 99,000× the energy of this one
- Around the size people start to feel M 3.0 8.8× the energy of this one
- This earthquake M 2.4 about 110 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 37.8150, -90.1143. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| Ste. Genevieve County, MO | 9 km (6 mi) | SSE of here | earthquakes near Ste. Genevieve County |
| Perry County, MO | 30 km (19 mi) | WNW of here | earthquakes near Perry County |
| St. Francois County, MO | 32 km (20 mi) | E of here | earthquakes near St. Francois County |
| Randolph County, IL | 37 km (23 mi) | SW of here | earthquakes near Randolph County |
| Madison County, MO | 43 km (27 mi) | NNE of here | earthquakes near Madison County |
| Monroe County, IL | 52 km (32 mi) | S of here | earthquakes near Monroe County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
4 earthquakes have been recorded within 50 km since this one.
- 2.0 14 km SSE of Weingarten, Missouri
- 2.2 15 km SW of Ozora, Missouri
- 2.1 4 km N of Marquand, Missouri
- 1.7 3 km WNW of Olympian Village, 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.