QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1md

Earthquake near Cove Creek, NC

USGS: 16 km NE of Cove Creek, North Carolina

99 km (62 mi) ESE of Knoxville, TN · 35 km (22 mi) WNW of Asheville, NC

9:34 pm EST, Dec 10, 2020 · · 6.7 km deep · released about 43 lb of TNT

10 km30 km60 km120 km N Haywood County 20 kmMadison County 23 kmCocke County 30 kmBuncombe County 35 kmGreene County 51 kmJackson County 53 kmSwain County 55 kmYancey County 56 kmHenderson County 57 km
Distance rings around the epicentre, with the nearest towns at their true direction and later quakes as coloured dots. Not a shaking map — see the USGS ShakeMap for that.
When
9:34 pm EST on 10 December 2020 ()
Where
17 km (10 mi) NE of Cove Creek, NC · earthquakes near Cove Creek
Magnitude
M 2.1 (md)
Depth
6.7 km below the surface
Felt
2 reports · strongest reported intensity II
Nearest
Haywood County, 20 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2121 days ago

A magnitude 2.1 earthquake was recorded 17 km (10 mi) NE of Cove Creek, NC, at 9:34 pm EST on 10 December 2020 (02:34 UTC). 2 people have reported feeling it to USGS. This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

Earthquakes near other towns within 30 km: West Canton, Clyde, Canton, Lake Junaluska, Waynesville, Maggie Valley.

How big was it?

This earthquake released about 43 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 350,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 250,000× the energy of this one
  3. Around the size people start to feel M 3.0 22× the energy of this one
  4. This earthquake M 2.1 about 43 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:

  1. 5.2 Near Asheville, North Carolina · 43 km SE 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 35.7190, -82.8913. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Haywood County, NC 20 km (12 mi) SSW earthquakes near Haywood County
Madison County, NC 23 km (14 mi) NE earthquakes near Madison County
Cocke County, TN 30 km (19 mi) NW earthquakes near Cocke County
Buncombe County, NC 35 km (22 mi) ESE earthquakes near Buncombe County
Greene County, TN 51 km (32 mi) N earthquakes near Greene County
Jackson County, NC 53 km (33 mi) SSW earthquakes near Jackson 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.

  1. 2.0 8 km ENE of Weaverville, North Carolina
  2. 2.0 7 km SSW of Canton, North Carolina
  3. 1.8 8 km SSE of Clyde, North Carolina
  4. 2.0 7 km SSE of Clyde, North Carolina
  5. 2.1 8 km S of West Canton, North Carolina
  6. 1.7 8 km ENE of Weaverville, North Carolina
  7. 1.9 7 km SSE of Clyde, North Carolina
  8. 1.9 8 km E of Weaverville, North Carolina
  9. 1.9 4 km N of West Canton, North Carolina
  10. 2.1 4 km NNW of Weaverville, North Carolina
  11. 2.1 7 km NW of Weaverville, North Carolina
  12. 1.7 16 km E of Cullowhee, North Carolina
  13. 2.1 10 km SSE of Pittman Center, Tennessee
  14. 2.0 4 km N of West Canton, North Carolina
  15. 2.5 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

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.