QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4mb_lg

8 km ENE of Hazelton, Kansas

· 5.0 km deep · released about 120 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Harper County 23 kmBarber County 35 kmAlfalfa County 44 kmKingman County 50 kmGrant County 60 kmWoods County 66 kmPratt County 69 kmSumner County 74 kmComanche 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 2.4 (mb_lg)
Depth
5.0 km below the surface
Felt
no reports yet
Nearest
Harper County, 23 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3141 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 120 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 130,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 89,000× the energy of this one
  3. Around the size people start to feel M 3.0 7.9× the energy of this one
  4. This earthquake M 2.4 about 120 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 37.1246, -98.3141. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Harper County, KS 23 km (14 mi) WSW of here earthquakes near Harper County
Barber County, KS 35 km (22 mi) ESE of here earthquakes near Barber County
Alfalfa County, OK 44 km (27 mi) N of here earthquakes near Alfalfa County
Kingman County, KS 50 km (31 mi) SSW of here earthquakes near Kingman County
Grant County, OK 60 km (37 mi) NW of here earthquakes near Grant County
Woods County, OK 66 km (41 mi) NE of here earthquakes near Woods County

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

Aftershocks so far

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

  1. 1.6 4 km E of Freeport, Kansas
  2. 1.8 5 km W of Danville, Kansas
  3. 2.2 7 km E of Freeport, Kansas
  4. 1.5 7 km S of Argonia, Kansas
  5. 2.9 7 km E of Freeport, Kansas
  6. 1.8 7 km E of Freeport, Kansas
  7. 2.3 7 km E of Freeport, Kansas
  8. 3.0 8 km SE of Byron, Oklahoma
  9. 1.8 4 km N of Anthony, Kansas
  10. 3.8 3 km WNW of Byron, Oklahoma
  11. 1.6 7 km E of Freeport, Kansas
  12. 1.5 0 km NNW of Bluff City, Kansas
  13. 2.7 7 km SW of Wakita, Oklahoma
  14. 2.1 0 km NNW of Bluff City, Kansas
  15. 1.9 6 km SE of Freeport, 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.