QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7ml

11 km N of Caldwell, Kansas

· 6.0 km deep · released about 10 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Sumner County 15 kmHarper County 42 kmGrant County 42 kmKay County 54 kmSedgwick County 62 kmKingman County 67 kmCowley County 69 kmAlfalfa County 78 kmGarfield County 86 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
6.0 km below the surface
Felt
no reports yet
Nearest
Sumner County, 15 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3713 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 37.1352, -97.6022. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Sumner County, KS 15 km (9 mi) SW of here earthquakes near Sumner County
Harper County, KS 42 km (26 mi) E of here earthquakes near Harper County
Grant County, OK 42 km (26 mi) NNE of here earthquakes near Grant County
Kay County, OK 54 km (34 mi) NW of here earthquakes near Kay County
Sedgwick County, KS 62 km (39 mi) SSW of here earthquakes near Sedgwick County
Kingman County, KS 67 km (41 mi) SE of here earthquakes near Kingman County

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

Aftershocks so far

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

  1. 1.8 2 km SE of Milan, Kansas
  2. 3.0 8 km WSW of Deer Creek, Oklahoma
  3. 1.6 3 km SSE of Danville, Kansas
  4. 3.5 9 km W of Deer Creek, Oklahoma
  5. 1.6 3 km WNW of Freeport, Kansas
  6. 1.5 3 km ENE of Freeport, Kansas
  7. 1.6 3 km ENE of Freeport, Kansas
  8. 2.3 6 km WNW of Mayfield, Kansas
  9. 1.6 6 km ENE of Milan, Kansas
  10. 2.3 6 km ENE of Milan, Kansas
  11. 2.1 3 km ENE of Freeport, Kansas
  12. 2.1 3 km ENE of Freeport, Kansas
  13. 1.6 6 km ENE of Milan, Kansas
  14. 1.6 6 km ENE of Milan, Kansas
  15. 1.9 6 km WNW of Mayfield, 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.