Earthquake · reviewed by a seismologist
M 2.2md
3 km NNW of Marion, North Carolina
- When
- Magnitude
- M 2.2 (md)
- Depth
- 9.8 km below the surface
- Felt
- 4 reports · strongest reported intensity III
- Nearest
- McDowell County, 4 km SSW
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 255 days ago
This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 4 people have reported feeling it to USGS.
How big was it?
This earthquake released about 52 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.2 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 290,000× the energy of this one
- Magna, Utah 2020 M 5.7 200,000× the energy of this one
- Around the size people start to feel M 3.0 18× the energy of this one
- This earthquake M 2.2 about 52 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 35.7117, -82.0285. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| McDowell County, NC | 4 km (2 mi) | NNE of here | earthquakes near McDowell County |
| Burke County, NC | 29 km (18 mi) | W of here | earthquakes near Burke County |
| Yancey County, NC | 32 km (20 mi) | SE of here | earthquakes near Yancey County |
| Mitchell County, NC | 36 km (22 mi) | SSE of here | earthquakes near Mitchell County |
| Rutherford County, NC | 36 km (22 mi) | NNW of here | earthquakes near Rutherford County |
| Avery County, NC | 41 km (26 mi) | SSW of here | earthquakes near Avery 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.
- 2.0 8 km ENE of Weaverville, North Carolina
- 1.7 8 km ENE of Weaverville, North Carolina
- 1.9 8 km E of Weaverville, North Carolina
- 1.7 6 km WSW of Newland, North Carolina
- 2.1 3 km NW of Marion, North Carolina
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.