Earthquake · reviewed by a seismologist
M 2.5md
6 km SSE of Sewanee, Tennessee
- When
- Magnitude
- M 2.5 (md)
- Depth
- 8.7 km below the surface
- Felt
- 8 reports · strongest reported intensity III
- Nearest
- Franklin County, 19 km W
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 982 days ago
This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 8 people have reported feeling it to USGS.
How big was it?
This earthquake released about 180 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 83,000× the energy of this one
- Magna, Utah 2020 M 5.7 59,000× the energy of this one
- Around the size people start to feel M 3.0 5.2× the energy of this one
- This earthquake M 2.5 about 180 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 35.1480, -85.8858. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| Franklin County, TN | 19 km (12 mi) | E of here | earthquakes near Franklin County |
| Marion County, TN | 25 km (16 mi) | W of here | earthquakes near Marion County |
| Grundy County, TN | 32 km (20 mi) | SSW of here | earthquakes near Grundy County |
| Coffee County, TN | 42 km (26 mi) | SSE of here | earthquakes near Coffee County |
| Jackson County, AL | 44 km (27 mi) | NNE of here | earthquakes near Jackson County |
| Moore County, TN | 46 km (28 mi) | ESE of here | earthquakes near Moore County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
6 earthquakes have been recorded within 50 km since this one.
- 2.4 12 km S of Tracy City, Tennessee
- 2.0 4 km NNE of Trenton, Georgia
- 2.3 3 km S of Lone Oak, Tennessee
- 2.1 6 km SW of Bridgeport, Alabama
- 2.3 4 km NE of Stevenson, Alabama
- 2.5 7 km ENE of Stevenson, 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.