QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6ml

7 km NW of Marland, Oklahoma

· 7.8 km deep · released about 240 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Kay County 23 kmNoble County 25 kmGrant County 56 kmPawnee County 56 kmGarfield County 58 kmPayne County 62 kmOsage County 71 kmSumner County 74 kmCowley County 77 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
7.8 km below the surface
Felt
no reports yet
Nearest
Kay County, 23 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3744 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 36.6100, -97.2047. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Kay County, OK 23 km (15 mi) SSW of here earthquakes near Kay County
Noble County, OK 25 km (16 mi) N of here earthquakes near Noble County
Grant County, OK 56 km (35 mi) ESE of here earthquakes near Grant County
Pawnee County, OK 56 km (35 mi) NW of here earthquakes near Pawnee County
Garfield County, OK 58 km (36 mi) ENE of here earthquakes near Garfield County
Payne County, OK 62 km (39 mi) NNW of here earthquakes near Payne County

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

Aftershocks so far

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

  1. 2.9 7 km E of Marland, Oklahoma
  2. 3.2 7 km ESE of Marland, Oklahoma
  3. 2.6 5 km WNW of Lucien, Oklahoma
  4. 2.6 7 km ESE of Lucien, Oklahoma
  5. 2.7 9 km W of Lamont, Oklahoma
  6. 2.7 3 km NNW of Covington, Oklahoma
  7. 3.3 5 km WNW of Lucien, Oklahoma
  8. 3.1 12 km NNW of Perry, Oklahoma
  9. 2.9 10 km ESE of Jefferson, Oklahoma
  10. 3.1 4 km SSW of Pawnee, Oklahoma
  11. 2.8 9 km E of Medford, Oklahoma
  12. 2.7 4 km SSE of Braman, Oklahoma
  13. 2.7 8 km ESE of Pond Creek, Oklahoma
  14. 3.1 8 km W of Deer Creek, Oklahoma
  15. 2.7 2 km NNW of Lamont, 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.