QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1ml

7 km SE of Luther, Oklahoma

· 6.7 km deep · released about 51 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Lincoln County 24 kmOklahoma County 27 kmLogan County 44 kmPottawatomie County 48 kmCleveland County 49 kmPayne County 53 kmSeminole County 70 kmMcClain County 73 kmOkfuskee County 74 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 2.1 (ml)
Depth
6.7 km below the surface
Felt
no reports yet
Nearest
Lincoln County, 24 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2007 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 51 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 300,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 210,000× the energy of this one
  3. Around the size people start to feel M 3.0 19× the energy of this one
  4. This earthquake M 2.1 about 51 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 35.6198, -97.1248. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Lincoln County, OK 24 km (15 mi) WSW of here earthquakes near Lincoln County
Oklahoma County, OK 27 km (17 mi) ENE of here earthquakes near Oklahoma County
Logan County, OK 44 km (27 mi) SE of here earthquakes near Logan County
Pottawatomie County, OK 48 km (30 mi) NNW of here earthquakes near Pottawatomie County
Cleveland County, OK 49 km (31 mi) NNE of here earthquakes near Cleveland County
Payne County, OK 53 km (33 mi) SSW of here earthquakes near Payne County

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

Aftershocks so far

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

  1. 2.1 4 km NE of Coyle, Oklahoma
  2. 2.0 10 km WSW of Shamrock, Oklahoma
  3. 1.8 6 km W of Johnson, Oklahoma
  4. 1.6 8 km NW of Prague, Oklahoma
  5. 1.9 5 km ESE of Meeker, Oklahoma
  6. 2.0 5 km N of Stroud, Oklahoma
  7. 2.2 10 km WSW of Shamrock, Oklahoma
  8. 1.9 8 km SSW of Warwick, Oklahoma
  9. 1.7 8 km SSW of Warwick, Oklahoma
  10. 2.8 8 km SSW of Warwick, Oklahoma
  11. 2.0 8 km SSW of Warwick, Oklahoma
  12. 1.5 7 km NE of Harrah, Oklahoma
  13. 2.0 3 km SE of Carney, Oklahoma
  14. 1.6 2 km ESE of Luther, Oklahoma
  15. 1.6 8 km NNW of Coyle, 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 4.2 on 2016-04-07 — it released about 1,200 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.