QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7ml

4 km W of Bridge Creek, Oklahoma

· 6.2 km deep · released about 340 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Grady County 25 kmMcClain County 39 kmCanadian County 39 kmCleveland County 42 kmOklahoma County 49 kmCaddo County 55 kmGarvin County 72 kmPottawatomie County 75 kmKingfisher 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 2.7 (ml)
Depth
6.2 km below the surface
Felt
2 reports · strongest reported intensity II
Nearest
Grady County, 25 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2787 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 340 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 45,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 32,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.8× the energy of this one
  4. This earthquake M 2.7 about 340 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 35.2323, -97.7850. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Grady County, OK 25 km (16 mi) NNE of here earthquakes near Grady County
McClain County, OK 39 km (24 mi) NW of here earthquakes near McClain County
Canadian County, OK 39 km (24 mi) SSE of here earthquakes near Canadian County
Cleveland County, OK 42 km (26 mi) W of here earthquakes near Cleveland County
Oklahoma County, OK 49 km (31 mi) SW of here earthquakes near Oklahoma County
Caddo County, OK 55 km (34 mi) E of here earthquakes near Caddo 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. 2.2 8 km WNW of Dibble, Oklahoma
  2. 2.0 10 km WNW of Dibble, Oklahoma
  3. 1.9 1 km W of Tuttle, Oklahoma
  4. 1.7 3 km NNW of Bridge Creek, Oklahoma
  5. 2.0 5 km NE of Tuttle, Oklahoma
  6. 2.1 3 km NW of Bridge Creek, Oklahoma
  7. 2.2 6 km ENE of Union City, Oklahoma
  8. 2.0 3 km ENE of Union City, Oklahoma
  9. 2.2 1 km ENE of Union City, Oklahoma
  10. 2.4 5 km NE of Union City, Oklahoma
  11. 2.5 2 km N of Union City, Oklahoma
  12. 2.5 4 km N of Union City, Oklahoma
  13. 2.7 3 km NE of Union City, Oklahoma
  14. 1.8 5 km N of Bridge Creek, Oklahoma
  15. 2.5 2 km ESE of Minco, 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.