QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

14 km SE of Freeport, Kansas

· 3.2 km deep · released about 7.8 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Sumner County 24 kmHarper County 31 kmGrant County 38 kmKingman County 60 kmKay County 62 kmSedgwick County 66 kmAlfalfa County 69 kmCowley County 79 kmGarfield County 83 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
3.2 km below the surface
Felt
no reports yet
Nearest
Sumner County, 24 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3556 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 7.8 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 1,900,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,400,000× the energy of this one
  3. Around the size people start to feel M 3.0 120× the energy of this one
  4. This earthquake M 1.6 about 7.8 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 37.1250, -97.7227. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Sumner County, KS 24 km (15 mi) WSW of here earthquakes near Sumner County
Harper County, KS 31 km (19 mi) ESE of here earthquakes near Harper County
Grant County, OK 38 km (24 mi) N of here earthquakes near Grant County
Kingman County, KS 60 km (38 mi) SE of here earthquakes near Kingman County
Kay County, OK 62 km (38 mi) NW of here earthquakes near Kay County
Sedgwick County, KS 66 km (41 mi) SSW of here earthquakes near Sedgwick County

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

Aftershocks so far

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

  1. 1.7 8 km NE of Anthony, Kansas
  2. 2.0 8 km NE of Anthony, Kansas
  3. 2.5 11 km N of Nescatunga, Oklahoma
  4. 3.0 11 km N of Nescatunga, Oklahoma
  5. 2.8 11 km N of Nescatunga, Oklahoma
  6. 3.1 3 km ENE of Medford, Oklahoma
  7. 2.8 9 km E of Medford, Oklahoma
  8. 1.5 6 km ENE of Anthony, Kansas
  9. 2.7 11 km N of Nescatunga, Oklahoma
  10. 2.7 4 km SSE of Braman, Oklahoma
  11. 2.7 13 km N of Nescatunga, Oklahoma
  12. 2.7 11 km N of Nescatunga, Oklahoma
  13. 3.1 8 km W of Deer Creek, Oklahoma
  14. 2.0 4 km NNE of Anthony, Kansas
  15. 1.6 4 km NNE of Anthony, 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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