QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2md

Earthquake near Pulaski, VA

No earthquake was likely felt in Pulaski in the 24 hours to 11:30 am EST (16:30 UTC). The last one was M 4.8, 660 km (410 mi) NE, at 10:23 am EDT on 5 April 2024, estimated intensity II (weak) in town; 184,673 felt reports to USGS. Every earthquake near Pulaski

This page: a magnitude 2.2 earthquake was recorded 19 km (12 mi) south of Pulaski, VA, at 7:23 am EDT on 26 September 2020 (11:23 UTC), 22 km deep. 2 people have reported feeling it to USGS.

USGS: 6 km S of Allisonia, Virginia

96 km (60 mi) NNW of Winston-Salem, NC

7:23 am EDT, Sep 26, 2020 · · 22 km deep · released about 58 lb of TNT

10 km30 km60 km120 km N Carroll County 16 kmPulaski County 21 kmGalax city 28 kmWythe County 31 kmRadford city 31 kmFloyd County 35 kmBland County 45 kmMontgomery County 45 kmPatrick County 47 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
7:23 am EDT on 26 September 2020 ()
Where
19 km (12 mi) south of Pulaski, VA · earthquakes near Pulaski
Magnitude
M 2.2 (md)
Depth
22 km below the surface
Felt
2 reports · strongest reported intensity II
Nearest
Carroll County, 16 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2239 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 24 km (15 mi) from the epicentre. In Pulaski, 19 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.

Earthquakes near other towns within 30 km: Hillsville, Dublin, Galax.

How big was it?

This earthquake released about 58 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.

  1. Mineral, Virginia 2011 M 5.8 260,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 180,000× the energy of this one
  3. Around the size people start to feel M 3.0 16× the energy of this one
  4. This earthquake M 2.2 about 58 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 since 1900 lists no earthquake of M5 or more within 50 km.

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 36.8770, -80.7380. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Carroll County, VA 16 km (10 mi) S earthquakes near Carroll County
Pulaski County, VA 21 km (13 mi) N earthquakes near Pulaski County
Galax city, VA 28 km (18 mi) SW earthquakes near Galax city
Wythe County, VA 31 km (19 mi) W earthquakes near Wythe County
Radford city, VA 31 km (19 mi) NNE earthquakes near Radford city
Floyd County, VA 35 km (22 mi) E earthquakes near Floyd County

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

Aftershocks so far

10 earthquakes have been recorded within 50 km since this one.

  1. 2.2 9 km ESE of Independence, Virginia
  2. 2.1 4 km WSW of Lowgap, North Carolina
  3. 1.5 8 km W of Lowgap, North Carolina
  4. 2.3 8 km W of Lowgap, North Carolina
  5. 2.6 Virginia-North Carolina border region
  6. 2.7 5 km S of Hillsville, Virginia
  7. 2.6 Virginia-North Carolina border region
  8. 2.8 10 km S of Narrows, Virginia
  9. 2.3 9 km N of Independence, Virginia
  10. 2.0 9 km N of Independence, Virginia

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.