QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

6 km N of Calumet, Oklahoma

· 6.0 km deep · released about 25 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Canadian County 18 kmKingfisher County 36 kmBlaine County 37 kmCaddo County 59 kmOklahoma County 65 kmLogan County 67 kmGrady County 74 kmCuster County 79 kmMajor County 82 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 1.9 (ml)
Depth
6.0 km below the surface
Felt
1 report · strongest reported intensity I
Nearest
Canadian County, 18 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 983 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 1 person has reported feeling it to USGS.

How big was it?

This earthquake released about 25 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 620,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 440,000× the energy of this one
  3. Around the size people start to feel M 3.0 39× the energy of this one
  4. This earthquake M 1.9 about 25 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 35.6570, -98.1178. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Canadian County, OK 18 km (11 mi) NW of here earthquakes near Canadian County
Kingfisher County, OK 36 km (23 mi) SSW of here earthquakes near Kingfisher County
Blaine County, OK 37 km (23 mi) SE of here earthquakes near Blaine County
Caddo County, OK 59 km (37 mi) NNE of here earthquakes near Caddo County
Oklahoma County, OK 65 km (40 mi) W of here earthquakes near Oklahoma County
Logan County, OK 67 km (41 mi) WSW of here earthquakes near Logan County

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

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

  1. 1.6 4 km N of Dover, Oklahoma
  2. 1.7 Oklahoma
  3. 1.7 15 km ENE of Thomas, Oklahoma
  4. 1.8 16 km ENE of Thomas, Oklahoma
  5. 1.8 7 km NNE of Calumet, Oklahoma
  6. 1.9 7 km N of Calumet, Oklahoma
  7. 2.0 12 km WNW of Okarche, Oklahoma
  8. 1.7 7 km N of Calumet, Oklahoma
  9. 1.7 10 km SW of El Reno, Oklahoma
  10. 1.7 9 km SW of El Reno, Oklahoma
  11. 1.6 Oklahoma
  12. 1.7 16 km ENE of Thomas, Oklahoma
  13. 1.5 15 km ENE of Thomas, Oklahoma
  14. 1.7 9 km WSW of El Reno, Oklahoma
  15. 1.9 13 km ENE of Thomas, 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.