QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6ml

2 km WSW of Marland, Oklahoma

· 8.7 km deep · released about 220 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Noble County 19 kmKay County 29 kmPawnee County 50 kmPayne County 55 kmGarfield County 58 kmGrant County 61 kmOsage County 69 kmLogan County 75 kmSumner 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
8.7 km below the surface
Felt
2 reports · strongest reported intensity II
Nearest
Noble County, 19 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2459 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 2 people have reported feeling it to USGS.

How big was it?

This earthquake released about 220 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 68,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 48,000× the energy of this one
  3. Around the size people start to feel M 3.0 4.3× the energy of this one
  4. This earthquake M 2.6 about 220 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 36.5517, -97.1718. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Noble County, OK 19 km (12 mi) NNE of here earthquakes near Noble County
Kay County, OK 29 km (18 mi) S of here earthquakes near Kay County
Pawnee County, OK 50 km (31 mi) WNW of here earthquakes near Pawnee County
Payne County, OK 55 km (34 mi) NNW of here earthquakes near Payne County
Garfield County, OK 58 km (36 mi) ENE of here earthquakes near Garfield County
Grant County, OK 61 km (38 mi) ESE of here earthquakes near Grant County

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

Aftershocks so far

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

  1. 1.9 15 km NW of Pawnee, Oklahoma
  2. 2.1 6 km SSW of Nardin, Oklahoma
  3. 1.7 9 km W of Lamont, Oklahoma
  4. 1.7 6 km WNW of Lucien, Oklahoma
  5. 1.6 6 km WSW of Perry, Oklahoma
  6. 1.9 10 km W of Lamont, Oklahoma
  7. 1.6 11 km SW of Hunnewell, Kansas
  8. 2.3 2 km W of Red Rock, Oklahoma
  9. 1.9 10 km ESE of Jefferson, Oklahoma
  10. 2.1 9 km ESE of Jefferson, Oklahoma
  11. 2.2 4 km W of Lucien, Oklahoma
  12. 1.6 4 km WNW of Red Rock, Oklahoma
  13. 1.6 4 km W of Lucien, Oklahoma
  14. 1.9 9 km E of Perry, Oklahoma
  15. 1.7 4 km W of Lucien, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 5.8 on 2016-09-03 — it released about 68,000 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.