QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2mb_lg

2 km N of Derby, Kansas

· 5.0 km deep · released about 60 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Sedgwick County 20 kmSumner County 42 kmButler County 45 kmCowley County 54 kmHarvey County 55 kmKingman County 77 kmHarper County 82 kmReno County 82 kmKay County 85 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 2.2 (mb_lg)
Depth
5.0 km below the surface
Felt
4 reports · strongest reported intensity III
Nearest
Sedgwick County, 20 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3600 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 4 people have reported feeling it to USGS.

How big was it?

This earthquake released about 60 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.2 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 250,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 180,000× the energy of this one
  3. Around the size people start to feel M 3.0 16× the energy of this one
  4. This earthquake M 2.2 about 60 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 37.5714, -97.2752. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Sedgwick County, KS 20 km (13 mi) SE of here earthquakes near Sedgwick County
Sumner County, KS 42 km (26 mi) NNE of here earthquakes near Sumner County
Butler County, KS 45 km (28 mi) WSW of here earthquakes near Butler County
Cowley County, KS 54 km (33 mi) NW of here earthquakes near Cowley County
Harvey County, KS 55 km (34 mi) SSE of here earthquakes near Harvey County
Kingman County, KS 77 km (48 mi) E of here earthquakes near Kingman County

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

Aftershocks so far

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

  1. 2.9 10 km W of Belle Plaine, Kansas
  2. 2.3 9 km ESE of Clearwater, Kansas
  3. 1.7 4 km NNW of Mayfield, Kansas
  4. 2.1 7 km SE of Conway Springs, Kansas
  5. 1.5 5 km NW of Milan, Kansas
  6. 2.2 5 km NW of Milan, Kansas
  7. 1.6 6 km NE of Milan, Kansas
  8. 2.5 9 km SW of Conway Springs, Kansas
  9. 2.5 8 km SSW of Cheney, Kansas
  10. 1.6 1 km SE of Mayfield, Kansas
  11. 2.2 11 km W of Belle Plaine, Kansas
  12. 2.3 9 km WNW of Belle Plaine, Kansas
  13. 1.7 2 km SSE of Milan, Kansas
  14. 2.7 2 km SE of Milan, Kansas
  15. 1.8 2 km SE of Milan, 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.