QuakeIndex

Earthquake · reviewed by a seismologist

M 2.0md

2 km W of Helena, Arkansas

· 10 km deep · released about 31 lb of TNT

10 km30 km60 km120 km N Phillips County 25 kmTunica County 27 kmLee County 32 kmCoahoma County 33 kmQuitman County 43 kmMonroe County 56 kmSt. Francis County 57 kmPanola County 63 kmTate County 63 km
Distance rings around the epicentre, with the nearest towns at their true direction. Not a shaking map — see the USGS ShakeMap for that.
When
Magnitude
M 2.0 (md)
Depth
10 km below the surface
Felt
no reports yet
Nearest
Phillips County, 25 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 254 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 31 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.0 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 480,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 340,000× the energy of this one
  3. Around the size people start to feel M 3.0 31× the energy of this one
  4. This earthquake M 2.0 about 31 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 34.5258, -90.6183. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Phillips County, AR 25 km (15 mi) ENE of here earthquakes near Phillips County
Tunica County, MS 27 km (17 mi) WSW of here earthquakes near Tunica County
Lee County, AR 32 km (20 mi) SSE of here earthquakes near Lee County
Coahoma County, MS 33 km (20 mi) N of here earthquakes near Coahoma County
Quitman County, MS 43 km (27 mi) NW of here earthquakes near Quitman County
Monroe County, AR 56 km (35 mi) ESE of here earthquakes near Monroe County

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

Aftershocks so far

No further earthquakes have been recorded within 50 km since this one.

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.