QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7ml

4 km SW of Okarche, Oklahoma

· 7.3 km deep · released about 10 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Canadian County 18 kmKingfisher County 29 kmBlaine County 42 kmLogan County 56 kmOklahoma County 57 kmCaddo County 68 kmGrady County 76 kmGarfield County 78 kmMajor 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 1.7 (ml)
Depth
7.3 km below the surface
Felt
no reports yet
Nearest
Canadian County, 18 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2488 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 10 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,500,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,000,000× the energy of this one
  3. Around the size people start to feel M 3.0 92× the energy of this one
  4. This earthquake M 1.7 about 10 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 35.6995, -98.0173. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Canadian County, OK 18 km (11 mi) N of here earthquakes near Canadian County
Kingfisher County, OK 29 km (18 mi) SSW of here earthquakes near Kingfisher County
Blaine County, OK 42 km (26 mi) ESE of here earthquakes near Blaine County
Logan County, OK 56 km (35 mi) WSW of here earthquakes near Logan County
Oklahoma County, OK 57 km (36 mi) WNW of here earthquakes near Oklahoma County
Caddo County, OK 68 km (42 mi) NNE of here earthquakes near Caddo County

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

Aftershocks so far

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

  1. 1.6 3 km SSE of Minco, Oklahoma
  2. 1.9 4 km SSE of Minco, Oklahoma
  3. 2.6 7 km NNE of Loyal, Oklahoma
  4. 2.6 6 km SE of Crescent, Oklahoma
  5. 2.5 6 km SE of Minco, Oklahoma
  6. 2.0 6 km ESE of Union City, Oklahoma
  7. 2.1 6 km E of Union City, Oklahoma
  8. 1.7 6 km ESE of Union City, Oklahoma
  9. 1.6 5 km ESE of Union City, Oklahoma
  10. 1.7 6 km ESE of Union City, Oklahoma
  11. 1.8 Oklahoma
  12. 2.2 7 km ESE of Union City, Oklahoma
  13. 1.7 5 km ESE of Union City, Oklahoma
  14. 1.7 2 km WNW of Cedar Valley, Oklahoma
  15. 2.6 7 km SE 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.