QuakeIndex

Earthquake · reviewed by a seismologist

M 3.3ml

3 km S of Calumet, Oklahoma

· 3.7 km deep · released about 1.3 tons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Canadian County 13 kmBlaine County 44 kmKingfisher County 46 kmCaddo County 50 kmGrady County 65 kmOklahoma County 65 kmLogan County 72 kmCuster County 79 kmCleveland County 83 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
3.7 km below the surface
Felt
17 reports · strongest reported intensity IV
Nearest
Canadian County, 13 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3534 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 17 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 35.5673, -98.1261. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Canadian County, OK 13 km (8 mi) WNW of here earthquakes near Canadian County
Blaine County, OK 44 km (27 mi) SE of here earthquakes near Blaine County
Kingfisher County, OK 46 km (29 mi) SSW of here earthquakes near Kingfisher County
Caddo County, OK 50 km (31 mi) NNE of here earthquakes near Caddo County
Grady County, OK 65 km (40 mi) NNW of here earthquakes near Grady County
Oklahoma County, OK 65 km (40 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

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

  1. 2.0 2 km W of Bridge Creek, Oklahoma
  2. 2.8 13 km W of Union City, Oklahoma
  3. 2.2 2 km SW of Yukon, Oklahoma
  4. 2.7 13 km W of Union City, Oklahoma
  5. 2.7 13 km W of Union City, Oklahoma
  6. 2.5 12 km W of Union City, Oklahoma
  7. 3.5 15 km WSW of Watonga, Oklahoma
  8. 2.8 16 km WSW of Watonga, Oklahoma
  9. 2.8 14 km WSW of Watonga, Oklahoma
  10. 2.8 15 km ENE of Thomas, Oklahoma
  11. 2.5 15 km WSW of Watonga, Oklahoma
  12. 2.6 8 km NE of Pocasset, Oklahoma
  13. 2.4 4 km W of Okarche, Oklahoma
  14. 2.6 9 km SW of Yukon, Oklahoma
  15. 2.4 3 km W of Tuttle, 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.