QuakeIndex

Earthquake · reviewed by a seismologist

M 2.0ml

14 km WSW of Hardtner, Kansas

· 7.3 km deep · released about 36 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Woods County 27 kmBarber County 30 kmComanche County 46 kmAlfalfa County 50 kmHarper County 70 kmWoodward County 73 kmPratt County 76 kmMajor County 76 kmHarper County 79 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 2.0 (ml)
Depth
7.3 km below the surface
Felt
no reports yet
Nearest
Woods County, 27 km S
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.

How big was it?

This earthquake released about 36 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.0 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 420,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 300,000× the energy of this one
  3. Around the size people start to feel M 3.0 27× the energy of this one
  4. This earthquake M 2.0 about 36 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 36.9663, -98.8045. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Woods County, OK 27 km (17 mi) N of here earthquakes near Woods County
Barber County, KS 30 km (19 mi) SSW of here earthquakes near Barber County
Comanche County, KS 46 km (29 mi) ESE of here earthquakes near Comanche County
Alfalfa County, OK 50 km (31 mi) WNW of here earthquakes near Alfalfa County
Harper County, KS 70 km (43 mi) WSW of here earthquakes near Harper County
Woodward County, OK 73 km (46 mi) NE of here earthquakes near Woodward County

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

Aftershocks so far

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

  1. 1.7 8 km WSW of Waynoka, Oklahoma
  2. 1.5 6 km ENE of Avard, Oklahoma
  3. 1.7 10 km WNW of Dacoma, Oklahoma
  4. 1.6 7 km WSW of Waynoka, Oklahoma
  5. 2.3 6 km NNE of Avard, Oklahoma
  6. 2.1 9 km SW of Waynoka, Oklahoma
  7. 2.1 8 km WSW of Waynoka, Oklahoma
  8. 1.8 8 km SW of Waynoka, Oklahoma
  9. 1.7 8 km W of Dacoma, Oklahoma
  10. 1.6 8 km SW of Waynoka, Oklahoma
  11. 1.6 8 km SW of Waynoka, Oklahoma
  12. 1.8 5 km E of Avard, Oklahoma
  13. 1.6 6 km ENE of Avard, Oklahoma
  14. 1.6 0 km E of Avard, Oklahoma
  15. 1.6 8 km SW of Waynoka, 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

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