QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

Earthquake near Pulaski, VA

No earthquake was likely felt in Pulaski in the 24 hours to 5:37 am EST (10:37 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 2.3 earthquake was recorded 10 km (6 mi) northwest of Pulaski, VA, at 6:02 pm EST on 20 January 2020 (23:02 UTC), 8.1 km deep. 2 people have reported feeling it to USGS.

USGS: 10 km NW of Pulaski, Virginia

6:02 pm EST, Jan 20, 2020 · · 8.1 km deep · released about 88 lb of TNT

10 km30 km60 km120 km N Pulaski County 14 kmBland County 23 kmRadford city 27 kmGiles County 27 kmWythe County 30 kmMercer County 39 kmMontgomery County 43 kmCarroll County 44 kmGalax city 50 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
6:02 pm EST on 20 January 2020 ()
Where
10 km (6 mi) northwest of Pulaski, VA · earthquakes near Pulaski
Magnitude
M 2.3 (md)
Depth
8.1 km below the surface
Felt
2 reports · strongest reported intensity II
Nearest
Pulaski County, 14 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2287 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 37 km (23 mi) from the epicentre. In Pulaski, 10 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: Dublin, Radford, Fairlawn, Wytheville, Pearisburg.

How big was it?

This earthquake released about 88 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 170,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 120,000× the energy of this one
  3. Around the size people start to feel M 3.0 11× the energy of this one
  4. This earthquake M 2.3 about 88 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 37.1102, -80.8648. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Pulaski County, VA 14 km (9 mi) ESE earthquakes near Pulaski County
Bland County, VA 23 km (14 mi) W earthquakes near Bland County
Radford city, VA 27 km (17 mi) E earthquakes near Radford city
Giles County, VA 27 km (17 mi) NNE earthquakes near Giles County
Wythe County, VA 30 km (19 mi) SW earthquakes near Wythe County
Mercer County, WV 39 km (24 mi) NNW earthquakes near Mercer County

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

Aftershocks so far

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

  1. 2.2 2 km N of Pembroke, Virginia
  2. 2.6 Virginia-North Carolina border region
  3. 2.7 5 km S of Hillsville, Virginia
  4. 2.5 2 km N of Pembroke, Virginia
  5. 2.3 2 km N of Pembroke, Virginia
  6. 2.8 10 km S of Narrows, Virginia
  7. 2.2 6 km S of Allisonia, 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.