QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1ml

7 km SSE of El Reno, Oklahoma

· 6.8 km deep · released about 43 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Canadian County 10 kmOklahoma County 46 kmGrady County 51 kmKingfisher County 53 kmCaddo County 55 kmCleveland County 61 kmLogan County 64 kmBlaine County 65 kmMcClain County 66 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
6.8 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Canadian County, 10 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2887 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 1 person has reported feeling it to USGS.

How big was it?

This earthquake released about 43 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 5.8 350,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 250,000× the energy of this one
  3. Around the size people start to feel M 3.0 22× the energy of this one
  4. This earthquake M 2.1 about 43 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 35.4752, -97.9124. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Canadian County, OK 10 km (6 mi) SE of here earthquakes near Canadian County
Oklahoma County, OK 46 km (29 mi) W of here earthquakes near Oklahoma County
Grady County, OK 51 km (31 mi) N of here earthquakes near Grady County
Kingfisher County, OK 53 km (33 mi) S of here earthquakes near Kingfisher County
Caddo County, OK 55 km (34 mi) NE of here earthquakes near Caddo County
Cleveland County, OK 61 km (38 mi) WNW of here earthquakes near Cleveland County

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

Aftershocks so far

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

  1. 2.7 5 km S of Amber, Oklahoma
  2. 2.5 10 km S of Okarche, Oklahoma
  3. 2.4 5 km SW of Tuttle, Oklahoma
  4. 2.3 7 km WSW of Tuttle, Oklahoma
  5. 2.3 5 km WSW of Tuttle, Oklahoma
  6. 2.1 6 km WSW of Tuttle, Oklahoma
  7. 2.1 6 km WSW of Tuttle, Oklahoma
  8. 2.3 5 km SW of Tuttle, Oklahoma
  9. 2.8 4 km S of Minco, Oklahoma
  10. 2.4 5 km SW of Tuttle, Oklahoma
  11. 2.0 15 km W of Union City, Oklahoma
  12. 2.5 6 km SSW of Blanchard, Oklahoma
  13. 1.6 2 km SW of Okarche, Oklahoma
  14. 2.7 4 km W of Bridge Creek, Oklahoma
  15. 3.0 4 km W of Bridge Creek, 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.