QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1md

7 km SW of Ravenden, Arkansas

· 14 km deep · released about 43 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Sharp County 14 kmLawrence County 26 kmRandolph County 30 kmFulton County 50 kmIzard County 55 kmOregon County 55 kmIndependence County 56 kmRipley County 64 kmJackson County 67 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
Magnitude
M 2.1 (md)
Depth
14 km below the surface
Felt
2 reports · strongest reported intensity IV
Nearest
Sharp County, 14 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1506 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 2 people have reported feeling it to USGS.

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.

Where

Epicentre 36.1953, -91.3142. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Sharp County, AR 14 km (9 mi) E of here earthquakes near Sharp County
Lawrence County, AR 26 km (16 mi) NW of here earthquakes near Lawrence County
Randolph County, AR 30 km (19 mi) WSW of here earthquakes near Randolph County
Fulton County, AR 50 km (31 mi) ESE of here earthquakes near Fulton County
Izard County, AR 55 km (34 mi) ENE of here earthquakes near Izard County
Oregon County, MO 55 km (34 mi) S of here earthquakes near Oregon County

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

Aftershocks so far

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

  1. 1.8 3 km WNW of Lynn, Arkansas
  2. 2.1 6 km SSW of Strawberry, Arkansas
  3. 2.1 5 km N of Strawberry, Arkansas
  4. 2.1 5 km NW of Sidney, Arkansas
  5. 1.7 2 km WNW of Lynn, Arkansas
  6. 2.3 11 km NW of Strawberry, Arkansas
  7. 1.6 1 km W of Lynn, Arkansas
  8. 2.3 5 km SE of Imboden, Arkansas
  9. 2.0 6 km N of Black Rock, Arkansas
  10. 2.1 8 km NE of Smithville, Arkansas
  11. 2.0 4 km NNW of Minturn, Arkansas
  12. 1.9 12 km WNW of Smithville, Arkansas
  13. 1.8 2 km SW of Ravenden, Arkansas
  14. 2.0 5 km N of Black Rock, Arkansas
  15. 2.2 5 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.