QuakeIndex

Earthquake · reviewed by a seismologist

M 2.0ml

1 km NW of Freeport, Kansas

· 3.5 km deep · released about 30 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Harper County 18 kmSumner County 33 kmKingman County 46 kmGrant County 47 kmSedgwick County 64 kmAlfalfa County 67 kmBarber County 72 kmKay County 78 kmReno County 84 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 2.0 (ml)
Depth
3.5 km below the surface
Felt
no reports yet
Nearest
Harper County, 18 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3659 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 30 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.0 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 500,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 350,000× the energy of this one
  3. Around the size people start to feel M 3.0 32× the energy of this one
  4. This earthquake M 2.0 about 30 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 37.2075, -97.8682. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Harper County, KS 18 km (11 mi) E of here earthquakes near Harper County
Sumner County, KS 33 km (21 mi) W of here earthquakes near Sumner County
Kingman County, KS 46 km (28 mi) SSE of here earthquakes near Kingman County
Grant County, OK 47 km (29 mi) N of here earthquakes near Grant County
Sedgwick County, KS 64 km (40 mi) SW of here earthquakes near Sedgwick County
Alfalfa County, OK 67 km (41 mi) NE of here earthquakes near Alfalfa County

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

Aftershocks so far

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

  1. 1.7 9 km ESE of Bluff City, Kansas
  2. 1.5 9 km ESE of Bluff City, KS
  3. 1.6 5 km SSE of Freeport, Kansas
  4. 1.6 9 km W of Bluff City, Kansas
  5. 2.7 5 km SSE of Freeport, Kansas
  6. 3.5 5 km SSE of Freeport, Kansas
  7. 2.2 0 km N of Manchester, Oklahoma
  8. 2.7 3 km ENE of Medford, Oklahoma
  9. 1.7 8 km WSW of Hunnewell, Kansas
  10. 2.9 3 km ENE of Medford, Oklahoma
  11. 3.4 1 km ENE of Renfrow, Oklahoma
  12. 2.7 3 km ENE of Medford, Oklahoma
  13. 1.6 8 km E of Caldwell, Kansas
  14. 1.8 3 km ENE of Freeport, Kansas
  15. 2.2 5 km WNW of Caldwell, 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.