QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5md

Earthquake near Asheville, NC

No earthquake was likely felt in Asheville in the 24 hours to 4:19 pm EST (21:19 UTC). The last one was M 2.0, 15 km (9 mi) NNE, at 7:57 am EDT on 23 August 2026, estimated intensity II (weak) in town; 4 felt reports to USGS. Every earthquake near Asheville

This page: a magnitude 2.5 earthquake was recorded 31 km (19 mi) west-northwest of Asheville, NC, at 4:29 am EDT on 25 September 2021 (08:29 UTC), 5.9 km deep. 7 people have reported feeling it to USGS.

USGS: 17 km WSW of Marshall, North Carolina

33 km (20 mi) WNW of Asheville, NC · 102 km (63 mi) ESE of Knoxville, TN

4:29 am EDT, Sep 25, 2021 · · 5.9 km deep · released about 160 lb of TNT

10 km30 km60 km120 km N Madison County 19 kmHaywood County 22 kmCocke County 31 kmBuncombe County 33 kmGreene County 50 kmYancey County 53 kmJackson County 55 kmHenderson County 56 kmUnicoi 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
4:29 am EDT on 25 September 2021 ()
Where
31 km (19 mi) west-northwest of Asheville, NC · earthquakes near Asheville
North Carolina today
every earthquake in North Carolina in the last 24 hours
Magnitude
M 2.5 (md)
Depth
5.9 km below the surface
Felt
7 reports · strongest reported intensity IV
Nearest
Madison County, 19 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1803 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth, people at rest would likely notice it out to about 45 km (28 mi) from the epicentre. In Asheville, 31 km away, the estimate is intensity II (weak). Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

Likely felt in: Asheville 31 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 160 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 95,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 68,000× the energy of this one
  3. Around the size people start to feel M 3.0 6× the energy of this one
  4. This earthquake M 2.5 about 160 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 · 41 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 35.7333, -82.8563. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Madison County, NC 19 km (12 mi) NE earthquakes near Madison County
Haywood County, NC 22 km (14 mi) SSW earthquakes near Haywood County
Cocke County, TN 31 km (19 mi) NW earthquakes near Cocke County
Buncombe County, NC 33 km (20 mi) ESE earthquakes near Buncombe County
Greene County, TN 50 km (31 mi) N earthquakes near Greene County
Yancey County, NC 53 km (33 mi) ENE earthquakes near Yancey County

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

25 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. 2.3 2 km ENE of Greeneville, Tennessee
  13. 1.7 16 km E of Cullowhee, North Carolina
  14. 2.1 10 km SSE of Pittman Center, Tennessee
  15. 2.0 4 km N of West Canton, 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.