QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2md

Earthquake near Cherokee Village, AR

USGS: 8 km SW of Ravenden, Arkansas

10:21 pm CDT, May 7, 2017 · · 16 km deep · released about 54 lb of TNT

10 km30 km60 km120 km N Sharp County 14 kmLawrence County 24 kmRandolph County 32 kmFulton County 51 kmIndependence County 53 kmIzard County 55 kmOregon County 58 kmJackson County 64 kmRipley 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
10:21 pm CDT on 7 May 2017 ()
Where
23 km (14 mi) SE of Cherokee Village, AR · earthquakes near Cherokee Village
Magnitude
M 2.2 (md)
Depth
16 km below the surface
Felt
no reports yet
Nearest
Sharp County, 14 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3435 days ago

A magnitude 2.2 earthquake was recorded 23 km (14 mi) SE of Cherokee Village, AR, at 10:21 pm CDT on 7 May 2017 (03:21 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

Earthquakes near other towns within 30 km: Highland, Ash Flat.

How big was it?

This earthquake released about 54 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 5.8 280,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 200,000× the energy of this one
  3. Around the size people start to feel M 3.0 18× the energy of this one
  4. This earthquake M 2.2 about 54 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 36.1698, -91.3113. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Sharp County, AR 14 km (9 mi) W earthquakes near Sharp County
Lawrence County, AR 24 km (15 mi) SE earthquakes near Lawrence County
Randolph County, AR 32 km (20 mi) NE earthquakes near Randolph County
Fulton County, AR 51 km (32 mi) WNW earthquakes near Fulton County
Independence County, AR 53 km (33 mi) SSW earthquakes near Independence County
Izard County, AR 55 km (34 mi) W earthquakes near Izard County

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

Aftershocks so far

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

  1. 2.1 5 km N of Black Rock, Arkansas
  2. 2.2 3 km ENE of Maynard, Arkansas
  3. 2.1 12 km ESE of Mammoth Spring, Arkansas
  4. 1.9 8 km NW of Smithville, Arkansas
  5. 1.8 6 km S of Ravenden, Arkansas
  6. 2.9 7 km SSW of O'Kean, Arkansas
  7. 2.3 10 km NNE of Newark, Arkansas
  8. 2.1 9 km SW of Mammoth Spring, Arkansas
  9. 2.3 8 km N of Williford, Arkansas
  10. 2.3 4 km SE of Imboden, Arkansas
  11. 2.2 7 km E of Imboden, Arkansas
  12. 2.5 7 km E of Imboden, Arkansas
  13. 2.0 11 km NW of Cherokee Village, Arkansas
  14. 2.2 20 km SSE of Alton, Missouri
  15. 2.2 6 km N of Black Rock, 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.