QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3ml

9 km SSE of Calumet, Oklahoma

· 7.2 km deep · released about 98 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Canadian County 9 kmCaddo County 48 kmKingfisher County 49 kmBlaine County 51 kmGrady County 58 kmOklahoma County 60 kmLogan County 71 kmCleveland County 76 kmMcClain 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 2.3 (ml)
Depth
7.2 km below the surface
Felt
4 reports · strongest reported intensity V
Nearest
Canadian County, 9 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1239 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 4 people have reported feeling it to USGS.

How big was it?

This earthquake released about 98 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 150,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 110,000× the energy of this one
  3. Around the size people start to feel M 3.0 9.8× the energy of this one
  4. This earthquake M 2.3 about 98 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 35.5210, -98.0712. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Canadian County, OK 9 km (5 mi) WSW of here earthquakes near Canadian County
Caddo County, OK 48 km (30 mi) NE of here earthquakes near Caddo County
Kingfisher County, OK 49 km (31 mi) SSW of here earthquakes near Kingfisher County
Blaine County, OK 51 km (32 mi) SE of here earthquakes near Blaine County
Grady County, OK 58 km (36 mi) NNW of here earthquakes near Grady County
Oklahoma County, OK 60 km (37 mi) W of here earthquakes near Oklahoma 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. 1.6 2 km NNE of Amber, Oklahoma
  2. 1.9 2 km NNE of Amber, Oklahoma
  3. 1.6 14 km WNW of Greenfield, Oklahoma
  4. 2.4 1 km NE of Amber, Oklahoma
  5. 1.7 2 km NE of Amber, Oklahoma
  6. 1.5 2 km NE of Amber, Oklahoma
  7. 1.5 3 km NNE of Amber, Oklahoma
  8. 1.5 10 km NNW of El Reno, Oklahoma
  9. 1.6 9 km NW of Pocasset, Oklahoma
  10. 2.1 3 km WNW of Okarche, Oklahoma
  11. 2.3 10 km NW of Pocasset, Oklahoma
  12. 2.3 4 km WNW of Okarche, Oklahoma
  13. 1.6 4 km W of Okarche, Oklahoma
  14. 1.6 3 km W of Okarche, Oklahoma
  15. 1.6 2 km W of Okarche, 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.