QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5ml

2 km NW of Bridge Creek, Oklahoma

· 5.0 km deep · released about 200 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Grady County 28 kmMcClain County 38 kmCanadian County 39 kmCleveland County 39 kmOklahoma County 46 kmCaddo County 58 kmGarvin County 72 kmPottawatomie County 72 kmLogan County 79 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 2.5 (ml)
Depth
5.0 km below the surface
Felt
78 reports · strongest reported intensity IV
Nearest
Grady County, 28 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2382 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 78 people have reported feeling it to USGS.

How big was it?

This earthquake released about 200 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 75,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 53,000× the energy of this one
  3. Around the size people start to feel M 3.0 4.7× the energy of this one
  4. This earthquake M 2.5 about 200 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 35.2477, -97.7532. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Grady County, OK 28 km (17 mi) NNE of here earthquakes near Grady County
McClain County, OK 38 km (23 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 39 km (24 mi) W of here earthquakes near Cleveland County
Oklahoma County, OK 46 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

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

  1. 1.6 7 km NNE of Union City, Oklahoma
  2. 1.7 7 km NE of Union City, Oklahoma
  3. 1.9 Oklahoma
  4. 2.0 6 km NNE of Union City, Oklahoma
  5. 1.8 6 km NNE of Union City, Oklahoma
  6. 1.7 7 km NE of Union City, Oklahoma
  7. 1.6 9 km NE of Union City, Oklahoma
  8. 1.6 6 km N of Union City, Oklahoma
  9. 1.7 5 km NNW of Union City, Oklahoma
  10. 1.7 7 km NNW of Union City, Oklahoma
  11. 1.8 4 km E of Blanchard, Oklahoma
  12. 2.1 2 km WNW of Lindsay, Oklahoma
  13. 1.6 3 km ENE of Blanchard, Oklahoma
  14. 1.5 4 km ESE of Tuttle, Oklahoma
  15. 1.9 5 km NNW 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.