QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6ml

6 km NNE of Union City, Oklahoma

· 5.0 km deep · released about 210 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Canadian County 12 kmOklahoma County 47 kmGrady County 48 kmCaddo County 53 kmKingfisher County 56 kmCleveland County 60 kmMcClain County 64 kmLogan County 66 kmBlaine County 67 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 2.6 (ml)
Depth
5.0 km below the surface
Felt
3 reports · strongest reported intensity II
Nearest
Canadian County, 12 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2585 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 3 people have reported feeling it to USGS.

How big was it?

This earthquake released about 210 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 72,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 51,000× the energy of this one
  3. Around the size people start to feel M 3.0 4.6× the energy of this one
  4. This earthquake M 2.6 about 210 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 35.4487, -97.9118. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Canadian County, OK 12 km (8 mi) SSE of here earthquakes near Canadian County
Oklahoma County, OK 47 km (29 mi) WSW of here earthquakes near Oklahoma County
Grady County, OK 48 km (30 mi) N of here earthquakes near Grady County
Caddo County, OK 53 km (33 mi) NE of here earthquakes near Caddo County
Kingfisher County, OK 56 km (35 mi) S of here earthquakes near Kingfisher County
Cleveland County, OK 60 km (37 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

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

  1. 2.1 14 km W of Kingfisher, Oklahoma
  2. 2.1 14 km WSW of Kingfisher, Oklahoma
  3. 2.1 4 km ENE of Union City, Oklahoma
  4. 1.8 7 km N of Union City, Oklahoma
  5. 1.6 3 km NNW of Chickasha, Oklahoma
  6. 2.3 6 km ENE of Union City, Oklahoma
  7. 2.3 5 km ENE of Union City, Oklahoma
  8. 2.3 6 km ENE of Union City, Oklahoma
  9. 1.5 11 km ENE of Greenfield, Oklahoma
  10. 2.1 6 km NE of Union City, Oklahoma
  11. 1.8 6 km ENE of Union City, Oklahoma
  12. 1.6 6 km ENE of Union City, Oklahoma
  13. 2.3 8 km WSW of Yukon, Oklahoma
  14. 1.8 6 km NE of Union City, Oklahoma
  15. 1.6 2 km SSW 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.