QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5ml

4 km WNW of Danville, Kansas

· 5.0 km deep · released about 5.4 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Harper County 17 kmKingman County 33 kmSumner County 40 kmGrant County 59 kmSedgwick County 59 kmBarber County 67 kmReno County 73 kmAlfalfa County 73 kmPratt County 81 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 1.5 (ml)
Depth
5.0 km below the surface
Felt
no reports yet
Nearest
Harper County, 17 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2731 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 5.4 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,800,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 2,000,000× the energy of this one
  3. Around the size people start to feel M 3.0 180× the energy of this one
  4. This earthquake M 1.5 about 5.4 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 37.3053, -97.9353. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Harper County, KS 17 km (11 mi) NE of here earthquakes near Harper County
Kingman County, KS 33 km (21 mi) SE of here earthquakes near Kingman County
Sumner County, KS 40 km (25 mi) W of here earthquakes near Sumner County
Grant County, OK 59 km (37 mi) NNW of here earthquakes near Grant County
Sedgwick County, KS 59 km (37 mi) SW of here earthquakes near Sedgwick County
Barber County, KS 67 km (42 mi) E of here earthquakes near Barber County

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

Aftershocks so far

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

  1. 2.0 11 km ENE of Wakita, Oklahoma
  2. 2.0 11 km ENE of Wakita, Oklahoma
  3. 1.7 4 km W of Freeport, Kansas
  4. 2.2 9 km WNW of Viola, Kansas
  5. 2.0 1 km NNE of Renfrow, Oklahoma
  6. 2.3 0 km NNE of Renfrow, Oklahoma
  7. 1.9 9 km NE of Caldwell, Kansas
  8. 2.0 4 km S of Harper, Kansas
  9. 1.8 1 km NNE of Manchester, Oklahoma
  10. 1.7 9 km NE of Caldwell, Kansas
  11. 2.4 1 km NNE of Renfrow, Oklahoma
  12. 2.2 11 km SSE of Spivey, Kansas
  13. 1.9 1 km NNE of Manchester, Oklahoma
  14. 1.6 8 km ENE of Manchester, Oklahoma
  15. 1.5 8 km ENE of Manchester, 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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