QuakeIndex

Earthquake · reviewed by a seismologist

M 3.6ml

6 km S of Ripley, Oklahoma

· 4.1 km deep · released about 3.8 tons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Payne County 15 kmLincoln County 29 kmPawnee County 44 kmCreek County 48 kmLogan County 49 kmNoble County 56 kmOklahoma County 64 kmOkfuskee County 76 kmPottawatomie County 83 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 3.6 (ml)
Depth
4.1 km below the surface
Felt
8 reports · strongest reported intensity IV
Measured shaking
intensity IV (ShakeMap)
Nearest
Payne County, 15 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3827 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 8 people have reported feeling it to USGS.

How big was it?

This earthquake released about 3.8 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.6 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 45,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 2,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 1,400× the energy of this one
  4. This earthquake M 3.6 about 3.8 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 7.9× 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 35.9593, -96.9113. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Payne County, OK 15 km (9 mi) SSE of here earthquakes near Payne County
Lincoln County, OK 29 km (18 mi) N of here earthquakes near Lincoln County
Pawnee County, OK 44 km (27 mi) SSW of here earthquakes near Pawnee County
Creek County, OK 48 km (30 mi) W of here earthquakes near Creek County
Logan County, OK 49 km (30 mi) E of here earthquakes near Logan County
Noble County, OK 56 km (35 mi) SSE of here earthquakes near Noble County

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

Aftershocks so far

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

  1. 2.6 8 km NNE of Guthrie, Oklahoma
  2. 3.3 8 km NNE of Guthrie, Oklahoma
  3. 2.6 3 km W of Cushing, Oklahoma
  4. 2.5 3 km W of Cushing, Oklahoma
  5. 3.2 9 km NNE of Guthrie, Oklahoma
  6. 2.5 8 km S of Mulhall, Oklahoma
  7. 3.0 1 km NNW of Stillwater, Oklahoma
  8. 2.5 4 km SW of Luther, Oklahoma
  9. 2.6 10 km NNE of Coyle, Oklahoma
  10. 2.5 9 km NW of Perkins, Oklahoma
  11. 2.8 Oklahoma
  12. 2.3 5 km NNE of Stillwater, Oklahoma
  13. 2.6 11 km ENE of Perry, Oklahoma
  14. 2.8 8 km NW of Langston, Oklahoma
  15. 2.7 8 km NNE of Guthrie, 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.