QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

3 km SSE of Danville, Kansas

· 3.8 km deep · released about 8.4 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Harper County 19 kmSumner County 34 kmKingman County 40 kmGrant County 53 kmSedgwick County 59 kmAlfalfa County 71 kmBarber County 72 kmReno County 78 kmKay 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 1.6 (ml)
Depth
3.8 km below the surface
Felt
no reports yet
Nearest
Harper County, 19 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3579 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 8.4 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,800,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,300,000× the energy of this one
  3. Around the size people start to feel M 3.0 110× the energy of this one
  4. This earthquake M 1.6 about 8.4 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 37.2610, -97.8770. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Harper County, KS 19 km (12 mi) ENE of here earthquakes near Harper County
Sumner County, KS 34 km (21 mi) W of here earthquakes near Sumner County
Kingman County, KS 40 km (25 mi) SE of here earthquakes near Kingman County
Grant County, OK 53 km (33 mi) N of here earthquakes near Grant County
Sedgwick County, KS 59 km (37 mi) SW of here earthquakes near Sedgwick County
Alfalfa County, OK 71 km (44 mi) NNE of here earthquakes near Alfalfa County

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

Aftershocks so far

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

  1. 1.8 10 km ESE of Bluff City, Kansas
  2. 1.9 9 km NNW of Caldwell, Kansas
  3. 2.7 5 km NE of Medford, Oklahoma
  4. 2.0 6 km ENE of Caldwell, Kansas
  5. 3.3 7 km NNE of Wakita, Oklahoma
  6. 1.6 6 km ENE of Caldwell, Kansas
  7. 2.7 6 km NNE of Wakita, Oklahoma
  8. 2.7 6 km ENE of Caldwell, Kansas
  9. 2.8 6 km NNE of Wakita, Oklahoma
  10. 3.5 6 km NNE of Wakita, Oklahoma
  11. 3.7 4 km NNW of Wakita, Oklahoma
  12. 3.9 6 km N of Wakita, Oklahoma
  13. 2.4 7 km E of Bluff City, Kansas
  14. 1.5 7 km E of Bluff City, Kansas
  15. 1.8 7 km E 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

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