QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4ml

Oklahoma

· 20 km deep · released about 130 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Stephens County 8 kmJefferson County 41 kmGarvin County 50 kmCarter County 51 kmCotton County 59 kmGrady County 62 kmMurray County 64 kmMcClain County 68 kmComanche County 68 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 2.4 (ml)
Depth
20 km below the surface
Felt
4 reports · strongest reported intensity III
Nearest
Stephens County, 8 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1018 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 4 people have reported feeling it to USGS.

How big was it?

This earthquake released about 130 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 120,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 83,000× the energy of this one
  3. Around the size people start to feel M 3.0 7.4× the energy of this one
  4. This earthquake M 2.4 about 130 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 34.4675, -97.7723. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Stephens County, OK 8 km (5 mi) ESE of here earthquakes near Stephens County
Jefferson County, OK 41 km (25 mi) N of here earthquakes near Jefferson County
Garvin County, OK 50 km (31 mi) WSW of here earthquakes near Garvin County
Carter County, OK 51 km (31 mi) WNW of here earthquakes near Carter County
Cotton County, OK 59 km (36 mi) ENE of here earthquakes near Cotton County
Grady County, OK 62 km (39 mi) S of here earthquakes near Grady County

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

Aftershocks so far

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

  1. 1.6 8 km NW of Healdton, Oklahoma
  2. 1.6 9 km NW of Healdton, Oklahoma
  3. 1.6 8 km ESE of Loco, Oklahoma
  4. 1.8 8 km NW of Healdton, Oklahoma
  5. 1.7 7 km ESE of Ratliff City, Oklahoma
  6. 1.6 9 km NW of Healdton, Oklahoma
  7. 2.3 8 km ESE of Ratliff City, Oklahoma
  8. 1.9 4 km NNW of Velma, Oklahoma
  9. 1.5 4 km NNW of Velma, Oklahoma
  10. 1.5 9 km WNW of Velma, Oklahoma
  11. 1.6 10 km NW of Velma, Oklahoma
  12. 1.5 10 km WNW of Velma, Oklahoma
  13. 1.7 9 km NW of Velma, Oklahoma
  14. 1.8 9 km WNW of Velma, Oklahoma
  15. 1.6 9 km NW of Velma, 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.