QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8md

9 km S of Trumann, Arkansas

· 20 km deep · released about 13 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Poinsett County 15 kmCraighead County 28 kmCross County 41 kmMississippi County 46 kmCrittenden County 48 kmGreene County 59 kmJackson County 64 kmSt. Francis County 67 kmTipton County 70 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 1.8 (md)
Depth
20 km below the surface
Felt
no reports yet
Nearest
Poinsett County, 15 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 481 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 13 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,100,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 810,000× the energy of this one
  3. Around the size people start to feel M 3.0 72× the energy of this one
  4. This earthquake M 1.8 about 13 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 35.5897, -90.5158. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Poinsett County, AR 15 km (9 mi) E of here earthquakes near Poinsett County
Craighead County, AR 28 km (18 mi) SSE of here earthquakes near Craighead County
Cross County, AR 41 km (25 mi) NNE of here earthquakes near Cross County
Mississippi County, AR 46 km (29 mi) WSW of here earthquakes near Mississippi County
Crittenden County, AR 48 km (30 mi) NNW of here earthquakes near Crittenden County
Greene County, AR 59 km (37 mi) S of here earthquakes near Greene County

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

Aftershocks so far

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

  1. 1.9 6 km WNW of Victoria, Arkansas
  2. 1.8 7 km WSW of Marked Tree, Arkansas
  3. 1.9 3 km N of Etowah, Arkansas
  4. 1.9 5 km W of Dell, Arkansas
  5. 2.1 7 km WSW of Etowah, Arkansas
  6. 1.8 5 km S of Caraway, 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.