QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6ml

5 km E of Waukomis, Oklahoma

· 6.6 km deep · released about 240 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Garfield County 11 kmKingfisher County 38 kmLogan County 54 kmNoble County 55 kmGrant County 56 kmMajor County 63 kmAlfalfa County 66 kmBlaine County 70 kmPayne County 81 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 2.6 (ml)
Depth
6.6 km below the surface
Felt
no reports yet
Nearest
Garfield County, 11 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3799 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

How big was it?

This earthquake released about 240 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 63,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 45,000× the energy of this one
  3. Around the size people start to feel M 3.0 4× the energy of this one
  4. This earthquake M 2.6 about 240 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 36.2853, -97.8380. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Garfield County, OK 11 km (7 mi) SSW of here earthquakes near Garfield County
Kingfisher County, OK 38 km (24 mi) NNE of here earthquakes near Kingfisher County
Logan County, OK 54 km (34 mi) NW of here earthquakes near Logan County
Noble County, OK 55 km (34 mi) WSW of here earthquakes near Noble County
Grant County, OK 56 km (35 mi) S of here earthquakes near Grant County
Major County, OK 63 km (39 mi) E of here earthquakes near Major County

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

Aftershocks so far

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

  1. 2.5 3 km WNW of Lucien, Oklahoma
  2. 3.3 5 km N of Kremlin, Oklahoma
  3. 3.3 5 km N of Kremlin, Oklahoma
  4. 2.5 4 km NNW of Douglas, Oklahoma
  5. 2.6 5 km WNW of Lucien, Oklahoma
  6. 3.2 6 km ESE of Covington, Oklahoma
  7. 2.9 9 km W of Lamont, Oklahoma
  8. 2.7 3 km WNW of Lucien, Oklahoma
  9. 2.6 0 km W of Lucien, Oklahoma
  10. 2.5 3 km WNW of Lucien, Oklahoma
  11. 2.2 5 km NW of Lucien, Oklahoma
  12. 2.9 2 km NW of Fairmont, Oklahoma
  13. 2.9 1 km SE of Breckinridge, Oklahoma
  14. 2.6 5 km W of Lucien, Oklahoma
  15. 2.8 1 km ESE of Hennessey, 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.