QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5ml

5 km SW of Hunnewell, Kansas

· 6.8 km deep · released about 170 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Sumner County 30 kmKay County 32 kmGrant County 36 kmHarper County 60 kmCowley County 62 kmNoble County 68 kmGarfield County 73 kmSedgwick County 79 kmAlfalfa County 82 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 2.5 (ml)
Depth
6.8 km below the surface
Felt
no reports yet
Nearest
Sumner County, 30 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3796 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

How big was it?

This earthquake released about 170 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 89,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 63,000× the energy of this one
  3. Around the size people start to feel M 3.0 5.6× the energy of this one
  4. This earthquake M 2.5 about 170 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 36.9729, -97.4494. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Sumner County, KS 30 km (18 mi) S of here earthquakes near Sumner County
Kay County, OK 32 km (20 mi) WNW of here earthquakes near Kay County
Grant County, OK 36 km (23 mi) NE of here earthquakes near Grant County
Harper County, KS 60 km (37 mi) ESE of here earthquakes near Harper County
Cowley County, KS 62 km (38 mi) WSW of here earthquakes near Cowley County
Noble County, OK 68 km (42 mi) NNW of here earthquakes near Noble 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. 2.1 8 km NNE of Mayfield, Kansas
  2. 2.5 11 km NE of Wakita, Oklahoma
  3. 1.7 2 km SW of Mayfield, Kansas
  4. 2.8 11 km NE of Wakita, Oklahoma
  5. 2.5 10 km NE of Wakita, Oklahoma
  6. 2.9 9 km W of Lamont, Oklahoma
  7. 2.7 5 km NW of Freeport, Kansas
  8. 1.9 11 km ESE of Bluff City, Kansas
  9. 1.5 2 km WSW of Freeport, Kansas
  10. 3.3 6 km WNW of Wakita, Oklahoma
  11. 2.1 9 km SSE of Bluff City, Kansas
  12. 2.5 5 km ESE of Tonkawa, Oklahoma
  13. 1.7 10 km SSE of Bluff City, Kansas
  14. 3.1 5 km ESE of Tonkawa, Oklahoma
  15. 2.1 4 km SW of Bluff City, 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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