Earthquake · reviewed by a seismologist
M 2.7mb_lg
22 km S of Oakman, Alabama
- When
- Magnitude
- M 2.7 (mb_lg)
- Depth
- 2.4 km below the surface
- Felt
- 4 reports · strongest reported intensity II
- Nearest
- Tuscaloosa County, 30 km SSW
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 3424 days ago
This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 4 people have reported feeling it to USGS.
How big was it?
This earthquake released about 340 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.7 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 45,000× the energy of this one
- Magna, Utah 2020 M 5.7 32,000× the energy of this one
- Around the size people start to feel M 3.0 2.8× the energy of this one
- This earthquake M 2.7 about 340 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 33.5174, -87.3489. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| Tuscaloosa County, AL | 30 km (19 mi) | NNE of here | earthquakes near Tuscaloosa County |
| Walker County, AL | 31 km (19 mi) | S of here | earthquakes near Walker County |
| Jefferson County, AL | 42 km (26 mi) | W of here | earthquakes near Jefferson County |
| Fayette County, AL | 44 km (28 mi) | ESE of here | earthquakes near Fayette County |
| Bibb County, AL | 59 km (37 mi) | NNW of here | earthquakes near Bibb County |
| Shelby County, AL | 70 km (43 mi) | WNW of here | earthquakes near Shelby County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
5 earthquakes have been recorded within 50 km since this one.
- 2.2 15 km W of Rock Creek, Alabama
- 2.4 4 km WNW of Sipsey, Alabama
- 2.9 4 km NNW of Berry, Alabama
- 2.5 21 km W of Rock Creek, Alabama
- 2.3 21 km S of Berry, 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.