QuakeIndex

Earthquake · reviewed by a seismologist

M 3.4ml

9 km N of Stonewall, Oklahoma

· 27 km deep · released about 1.9 tons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Pontotoc County 16 kmCoal County 27 kmHughes County 42 kmSeminole County 47 kmJohnston County 49 kmMurray County 58 kmAtoka County 59 kmPottawatomie County 66 kmGarvin County 73 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 3.4 (ml)
Depth
27 km below the surface
Felt
39 reports · strongest reported intensity IV
Nearest
Pontotoc County, 16 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 703 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 39 people have reported feeling it to USGS.

How big was it?

This earthquake released about 1.9 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.4 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 89,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 4,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 2,800× the energy of this one
  4. This earthquake M 3.4 about 1.9 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 4× more

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 34.7407, -96.5190. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Pontotoc County, OK 16 km (10 mi) E of here earthquakes near Pontotoc County
Coal County, OK 27 km (17 mi) NW of here earthquakes near Coal County
Hughes County, OK 42 km (26 mi) SW of here earthquakes near Hughes County
Seminole County, OK 47 km (29 mi) S of here earthquakes near Seminole County
Johnston County, OK 49 km (31 mi) NNE of here earthquakes near Johnston County
Murray County, OK 58 km (36 mi) ENE of here earthquakes near Murray County

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

Aftershocks so far

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

  1. 1.5 7 km N of Mill Creek, Oklahoma
  2. 2.0 5 km NE of Wardville, Oklahoma
  3. 1.6 3 km SW of Mill Creek, Oklahoma
  4. 1.5 4 km NE of Wardville, Oklahoma
  5. 2.7 5 km NE of Wardville, Oklahoma
  6. 1.8 6 km NE of Wardville, Oklahoma
  7. 1.5 3 km ENE of Wardville, Oklahoma
  8. 1.7 4 km NE of Wardville, Oklahoma
  9. 1.9 4 km ENE of Wardville, Oklahoma
  10. 1.7 5 km NE of Wardville, Oklahoma
  11. 1.7 3 km NE of Wardville, Oklahoma
  12. 1.7 4 km ENE of Wardville, Oklahoma
  13. 2.4 4 km ENE of Wardville, Oklahoma
  14. 1.5 4 km NE of Wardville, Oklahoma
  15. 2.5 4 km ENE of Wardville, Oklahoma

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.