Earthquake · reviewed by a seismologist
M 2.3md
8 km WNW of New Castle, Virginia
- When
- Magnitude
- M 2.3 (md)
- Depth
- 14 km below the surface
- Felt
- 1 report · strongest reported intensity II
- Nearest
- Craig County, 6 km SSW
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 1194 days ago
This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 1 person has reported feeling it to USGS.
How big was it?
This earthquake released about 94 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 5.8 160,000× the energy of this one
- Magna, Utah 2020 M 5.7 110,000× the energy of this one
- Around the size people start to feel M 3.0 10× the energy of this one
- This earthquake M 2.3 about 94 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 37.5230, -80.1993. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| Craig County, VA | 6 km (4 mi) | NNE of here | earthquakes near Craig County |
| Roanoke County, VA | 21 km (13 mi) | N of here | earthquakes near Roanoke County |
| Salem city, VA | 29 km (18 mi) | NNW of here | earthquakes near Salem city |
| Monroe County, WV | 31 km (19 mi) | E of here | earthquakes near Monroe County |
| Alleghany County, VA | 34 km (21 mi) | SSW of here | earthquakes near Alleghany County |
| Covington city, VA | 34 km (21 mi) | SSW of here | earthquakes near Covington city |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
1 earthquake has been recorded within 50 km since this one.
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.