QuakeIndex

Earthquake · reviewed by a seismologist

M 3.3ml

1 km W of Bridge Creek, Oklahoma

· 6.3 km deep · released about 1.3 tons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Grady County 27 kmMcClain County 37 kmCleveland County 39 kmCanadian County 40 kmOklahoma County 47 kmCaddo County 58 kmGarvin County 71 kmPottawatomie County 72 kmLogan County 80 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 3.3 (ml)
Depth
6.3 km below the surface
Felt
160 reports · strongest reported intensity IV
Nearest
Grady County, 27 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2383 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 160 people have reported feeling it to USGS.

How big was it?

This earthquake released about 1.3 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.3 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 130,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 5,600× the energy of this one
  3. Magna, Utah 2020 M 5.7 4,000× the energy of this one
  4. This earthquake M 3.3 about 1.3 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 2.8× more

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 35.2355, -97.7523. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Grady County, OK 27 km (17 mi) NNE of here earthquakes near Grady County
McClain County, OK 37 km (23 mi) NW of here earthquakes near McClain County
Cleveland County, OK 39 km (24 mi) W of here earthquakes near Cleveland County
Canadian County, OK 40 km (25 mi) SSE of here earthquakes near Canadian County
Oklahoma County, OK 47 km (29 mi) SW of here earthquakes near Oklahoma County
Caddo County, OK 58 km (36 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

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

  1. 2.5 4 km N of Union City, Oklahoma
  2. 2.7 3 km NE of Union City, Oklahoma
  3. 1.8 5 km N of Bridge Creek, Oklahoma
  4. 2.5 2 km ESE of Minco, Oklahoma
  5. 2.7 0 km SE of Cole, Oklahoma
  6. 2.3 1 km WNW of Cole, Oklahoma
  7. 1.9 2 km WSW of Cole, Oklahoma
  8. 1.8 3 km NW of Cole, Oklahoma
  9. 2.8 3 km SSW of Amber, Oklahoma
  10. 1.8 2 km W of Ninnekah, Oklahoma
  11. 2.8 1 km NNW of Cole, Oklahoma
  12. 2.7 4 km S of Cole, Oklahoma
  13. 2.4 8 km WNW of Minco, Oklahoma
  14. 1.8 3 km E of Blanchard, Oklahoma
  15. 2.8 4 km E of Blanchard, 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.