QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3ml

9 km SE of Bluff City, Kansas

· 5.5 km deep · released about 91 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Grant County 26 kmHarper County 30 kmSumner County 36 kmAlfalfa County 57 kmKay County 63 kmKingman County 67 kmGarfield County 71 kmSedgwick County 79 kmBarber 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 2.3 (ml)
Depth
5.5 km below the surface
Felt
no reports yet
Nearest
Grant County, 26 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3707 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 91 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 5.8 170,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 120,000× the energy of this one
  3. Around the size people start to feel M 3.0 10× the energy of this one
  4. This earthquake M 2.3 about 91 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 37.0197, -97.8002. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Grant County, OK 26 km (16 mi) N of here earthquakes near Grant County
Harper County, KS 30 km (19 mi) SE of here earthquakes near Harper County
Sumner County, KS 36 km (23 mi) SW of here earthquakes near Sumner County
Alfalfa County, OK 57 km (35 mi) NE of here earthquakes near Alfalfa County
Kay County, OK 63 km (39 mi) WNW of here earthquakes near Kay County
Kingman County, KS 67 km (41 mi) SSE of here earthquakes near Kingman County

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

Aftershocks so far

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

  1. 3.1 8 km ESE of Pond Creek, Oklahoma
  2. 2.6 6 km NNE of Wakita, Oklahoma
  3. 3.0 6 km N of Wakita, Oklahoma
  4. 1.8 6 km ENE of Caldwell, Kansas
  5. 1.9 6 km ENE of Caldwell, Kansas
  6. 2.9 8 km W of Wakita, Oklahoma
  7. 1.6 7 km E of Bluff City, Kansas
  8. 1.6 7 km E of Bluff City, Kansas
  9. 2.7 8 km ENE of Caldwell, Kansas
  10. 2.2 2 km S of Anthony, Kansas
  11. 1.7 6 km E of Manchester, Oklahoma
  12. 1.8 7 km ENE of Caldwell, Kansas
  13. 2.2 7 km SW of Danville, Kansas
  14. 2.2 5 km SSE of Bluff City, Kansas
  15. 2.7 5 km SSE of Bluff City, Kansas

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.