Earthquake · reviewed by a seismologist
M 1.8md
4 km ESE of Hemby Bridge, North Carolina
- When
- Magnitude
- M 1.8 (md)
- Depth
- 5.5 km below the surface
- Felt
- 2 reports · strongest reported intensity II
- Nearest
- Union County, 12 km SSE
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 2546 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 17 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 900,000× the energy of this one
- Magna, Utah 2020 M 5.7 640,000× the energy of this one
- Around the size people start to feel M 3.0 57× the energy of this one
- This earthquake M 1.8 about 17 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 35.0893, -80.5857. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| Union County, NC | 12 km (7 mi) | NNW of here | earthquakes near Union County |
| Mecklenburg County, NC | 29 km (18 mi) | SE of here | earthquakes near Mecklenburg County |
| Cabarrus County, NC | 33 km (21 mi) | S of here | earthquakes near Cabarrus County |
| Stanly County, NC | 39 km (24 mi) | SW of here | earthquakes near Stanly County |
| Anson County, NC | 45 km (28 mi) | WNW of here | earthquakes near Anson County |
| Lancaster County, SC | 46 km (29 mi) | NNE of here | earthquakes near Lancaster County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
9 earthquakes have been recorded within 50 km since this one.
- 2.2 7 km SSW of Jaars, North Carolina
- 2.0 5 km SSW of Marshville, North Carolina
- 1.7 5 km W of Jaars, North Carolina
- 2.2 7 km ESE of Pageland, South Carolina
- 2.2 3 km NNW of Lesslie, South Carolina
- 2.2 9 km SE of Belmont, North Carolina
- 2.1 1 km NNW of Pineville, North Carolina
- 2.4 7 km WNW of Jefferson, South Carolina
- 2.0 5 km NNE of Lesslie, South 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.