Earthquake · reviewed by a seismologist
M 2.3md
2 km N of Pembroke, Virginia
- When
- Magnitude
- M 2.3 (md)
- Depth
- 8.1 km below the surface
- Felt
- 2 reports · strongest reported intensity II
- Nearest
- Giles County, 6 km WSW
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 1133 days ago
This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 2 people have reported feeling it to USGS.
How big was it?
This earthquake released about 77 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 200,000× the energy of this one
- Magna, Utah 2020 M 5.7 140,000× the energy of this one
- Around the size people start to feel M 3.0 12× the energy of this one
- This earthquake M 2.3 about 77 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 37.3427, -80.6382. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| Giles County, VA | 6 km (4 mi) | ENE of here | earthquakes near Giles County |
| Monroe County, WV | 25 km (15 mi) | SSW of here | earthquakes near Monroe County |
| Radford city, VA | 26 km (16 mi) | NNW of here | earthquakes near Radford city |
| Montgomery County, VA | 29 km (18 mi) | NW of here | earthquakes near Montgomery County |
| Pulaski County, VA | 32 km (20 mi) | NNE of here | earthquakes near Pulaski County |
| Craig County, VA | 39 km (24 mi) | WSW of here | earthquakes near Craig County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
3 earthquakes have been recorded within 50 km since this one.
- 2.2 2 km N of Pembroke, Virginia
- 2.3 8 km WNW of New Castle, Virginia
- 2.5 2 km N of Pembroke, Virginia
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.