QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7md

10 km NNE of Maynard, Arkansas

· 11 km deep · released about 360 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Ripley County 17 kmRandolph County 24 kmClay County 41 kmButler County 46 kmGreene County 49 kmCarter County 50 kmOregon County 53 kmLawrence County 56 kmSharp 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 2.7 (md)
Depth
11 km below the surface
Felt
5 reports · strongest reported intensity II
Nearest
Ripley County, 17 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3050 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 5 people have reported feeling it to USGS.

How big was it?

This earthquake released about 360 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 42,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 30,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.6× the energy of this one
  4. This earthquake M 2.7 about 360 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 36.5018, -90.8502. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Ripley County, MO 17 km (10 mi) S of here earthquakes near Ripley County
Randolph County, AR 24 km (15 mi) NE of here earthquakes near Randolph County
Clay County, AR 41 km (26 mi) WNW of here earthquakes near Clay County
Butler County, MO 46 km (29 mi) WSW of here earthquakes near Butler County
Greene County, AR 49 km (31 mi) NNW of here earthquakes near Greene County
Carter County, MO 50 km (31 mi) S of here earthquakes near Carter County

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

Aftershocks so far

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

  1. 2.2 10 km W of Maynard, Arkansas
  2. 2.0 6 km NE of Ravenden Springs, Arkansas
  3. 2.0 6 km NNW of Black Rock, Arkansas
  4. 1.5 4 km NE of Black Rock, Arkansas
  5. 1.6 5 km N of Black Rock, Arkansas
  6. 2.3 5 km SE of Grandin, Missouri
  7. 2.1 5 km N of Black Rock, Arkansas
  8. 2.4 6 km NNW of Doniphan, Missouri
  9. 2.7 6 km NNW of Doniphan, Missouri
  10. 2.3 7 km E of Maynard, Arkansas
  11. 2.4 7.1 km ESE of Datto, AR
  12. 2.4 11 km NNW of Maynard, Arkansas
  13. 2.2 3 km ENE of Maynard, Arkansas
  14. 2.3 4 km ENE of Maynard, Arkansas
  15. 2.4 7 km E of Maynard, 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.