Earthquake · reviewed by a seismologist
M 1.7md
Earthquake near Marion, NC
USGS: 14 km NW of Marion, North Carolina
48 km (30 mi) ENE of Asheville, NC · 132 km (82 mi) WNW of Charlotte, NC
- When
- 8:19 am EDT on 19 March 2018 ()
- Where
- 14 km (9 mi) NW of Marion, NC · earthquakes near Marion
- Magnitude
- M 1.7 (md)
- Depth
- 5.2 km below the surface
- Felt
- no reports yet
- Nearest
- McDowell County, 13 km SSE
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 3120 days ago
A magnitude 1.7 earthquake was recorded 14 km (9 mi) NW of Marion, NC, at 8:19 am EDT on 19 March 2018 (12:19 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.
Earthquakes near other towns within 30 km: Spruce Pine, West Marion, Burnsville, Black Mountain, Glen Alpine.
How big was it?
This earthquake released about 11 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 1,400,000× the energy of this one
- Magna, Utah 2020 M 5.7 970,000× the energy of this one
- Around the size people start to feel M 3.0 86× the energy of this one
- This earthquake M 1.7 about 11 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.
For this area
No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.
Before 2016, the USGS record lists one earthquake of M5 or more within 50 km:
- 5.2 Near Asheville, North Carolina · 48 km SW of this epicentre
Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.
Where
Epicentre 35.7890, -82.0993. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| McDowell County, NC | 13 km (8 mi) | SSE | earthquakes near McDowell County |
| Yancey County, NC | 22 km (13 mi) | WNW | earthquakes near Yancey County |
| Mitchell County, NC | 26 km (16 mi) | NNW | earthquakes near Mitchell County |
| Avery County, NC | 35 km (22 mi) | NNE | earthquakes near Avery County |
| Burke County, NC | 36 km (22 mi) | E | earthquakes near Burke County |
| Buncombe County, NC | 44 km (27 mi) | WSW | earthquakes near Buncombe County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
26 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 4 km NNW of Weaverville, North Carolina
- 2.1 3 km NW of Marion, North Carolina
- 2.2 3 km NNW of Marion, North Carolina
- 2.1 7 km NW of Weaverville, North Carolina
- 1.8 8 km W of Bakersville, North Carolina
- 2.2 8 km WNW of Roan Mountain, Tennessee
- 1.8 12 km N of Old Fort, North Carolina
- 2.0 7 km N of Spruce Pine, North Carolina
- 1.8 5 km NNW of Weaverville, North Carolina
- 1.9 5 km N of Weaverville, North Carolina
- 1.8 9 km E of Bakersville, 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.