Earthquake · reviewed by a seismologist
M 2.4md
11 km W of Elkton, Tennessee
- When
- Magnitude
- M 2.4 (md)
- Depth
- 11 km below the surface
- Felt
- 3 reports · strongest reported intensity III
- Nearest
- Giles County, 17 km N
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 2247 days ago
This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 3 people have reported feeling it to USGS.
How big was it?
This earthquake released about 100 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 5.7 100,000× the energy of this one
- Around the size people start to feel M 3.0 9.1× the energy of this one
- This earthquake M 2.4 about 100 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 35.0540, -87.0150. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| Giles County, TN | 17 km (10 mi) | S of here | earthquakes near Giles County |
| Limestone County, AL | 27 km (17 mi) | N of here | earthquakes near Limestone County |
| Lawrence County, TN | 39 km (24 mi) | ESE of here | earthquakes near Lawrence County |
| Lincoln County, TN | 40 km (25 mi) | WSW of here | earthquakes near Lincoln County |
| Marshall County, TN | 51 km (32 mi) | SSW of here | earthquakes near Marshall County |
| Madison County, AL | 53 km (33 mi) | NW of here | earthquakes near Madison 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.
- 2.5 12 km NNE of Trinity, Alabama
- 2.4 3 km SSW of Park City, Tennessee
- 2.7 6 km NW of Hazel Green, Alabama
- 2.1 3 km NE of Courtland, Alabama
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.