QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5ml

8 km NNW of Union City, Oklahoma

· 5.0 km deep · released about 170 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Canadian County 10 kmCaddo County 48 kmGrady County 49 kmOklahoma County 53 kmKingfisher County 55 kmBlaine County 62 kmCleveland County 66 kmMcClain County 69 kmLogan County 70 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
no reports yet
Nearest
Canadian County, 10 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3078 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

How big was it?

This earthquake released about 170 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 89,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 63,000× the energy of this one
  3. Around the size people start to feel M 3.0 5.6× the energy of this one
  4. This earthquake M 2.5 about 170 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 35.4563, -97.9823. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Canadian County, OK 10 km (6 mi) S of here earthquakes near Canadian County
Caddo County, OK 48 km (30 mi) NE of here earthquakes near Caddo County
Grady County, OK 49 km (31 mi) N of here earthquakes near Grady County
Oklahoma County, OK 53 km (33 mi) WSW of here earthquakes near Oklahoma County
Kingfisher County, OK 55 km (34 mi) S of here earthquakes near Kingfisher County
Blaine County, OK 62 km (38 mi) SE of here earthquakes near Blaine 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. 2.0 2 km ENE of Bridge Creek, Oklahoma
  2. 1.8 3 km E of Bridge Creek, Oklahoma
  3. 2.0 0 km E of Bridge Creek, Oklahoma
  4. 2.5 2 km ESE of Bridge Creek, Oklahoma
  5. 2.0 2 km ENE of Bridge Creek, Oklahoma
  6. 2.5 2 km E of Bridge Creek, Oklahoma
  7. 2.1 6 km SSE of Newcastle, Oklahoma
  8. 2.0 6 km NNE of Bridge Creek, Oklahoma
  9. 2.8 16 km W of Union City, Oklahoma
  10. 2.6 16 km W of Union City, Oklahoma
  11. 2.5 15 km W of Union City, Oklahoma
  12. 2.4 5 km S of Yukon, Oklahoma
  13. 2.1 7 km SSE of El Reno, Oklahoma
  14. 2.6 15 km W of Union City, Oklahoma
  15. 2.1 8 km NNE of Union City, 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.