QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1md

Earthquake near Batesville, AR

USGS: 3 km NW of Mount Pleasant, Arkansas

11:43 pm CDT, Sep 24, 2021 · · 2.1 km deep · released about 51 lb of TNT

Every earthquake near Batesville Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Izard County 17 kmIndependence County 34 kmStone County 35 kmSharp County 35 kmFulton County 45 kmCleburne County 48 kmBaxter County 59 kmLawrence County 62 kmJackson County 66 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
11:43 pm CDT on 24 September 2021 ()
Where
27 km (17 mi) NNW of Batesville, AR · earthquakes near Batesville
Magnitude
M 2.1 (md)
Depth
2.1 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Izard County, 17 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1833 days ago

A magnitude 2.1 earthquake was recorded 27 km (17 mi) NNW of Batesville, AR, at 11:43 pm CDT on 24 September 2021 (04:43 UTC). 1 person has 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: Melbourne, Cave City, Horseshoe Bend.

How big was it?

This earthquake released about 51 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 5.8 300,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 210,000× the energy of this one
  3. Around the size people start to feel M 3.0 19× the energy of this one
  4. This earthquake M 2.1 about 51 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 35.9818, -91.7825. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Izard County, AR 17 km (11 mi) NW earthquakes near Izard County
Independence County, AR 34 km (21 mi) SE earthquakes near Independence County
Stone County, AR 35 km (22 mi) WSW earthquakes near Stone County
Sharp County, AR 35 km (22 mi) NE earthquakes near Sharp County
Fulton County, AR 45 km (28 mi) N earthquakes near Fulton County
Cleburne County, AR 48 km (30 mi) SSW earthquakes near Cleburne County

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

Aftershocks so far

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

  1. 2.0 4 km N of Evening Shade, Arkansas
  2. 1.8 5 km SSW of Strawberry, Arkansas
  3. 2.2 4 km SW of Strawberry, Arkansas
  4. 1.7 10 km NW of Smithville, Arkansas
  5. 2.1 5 km S of Strawberry, Arkansas
  6. 1.8 3 km SE of Strawberry, Arkansas
  7. 2.2 0 km SSE of Strawberry, Arkansas
  8. 1.8 5 km SSW of Strawberry, Arkansas
  9. 2.1 5 km SSW of Strawberry, Arkansas
  10. 1.8 9 km SSW of Williford, Arkansas
  11. 2.2 8 km SW of Williford, Arkansas
  12. 1.8 8 km SW of Williford, Arkansas
  13. 1.9 12 km SSW of Strawberry, Arkansas
  14. 1.8 3 km WNW of Lynn, Arkansas
  15. 2.1 6 km SSW of Strawberry, Arkansas

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.