QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5mb_lg

4 km NE of South Haven, Kansas

· 5.0 km deep · released about 170 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Sumner County 21 kmKay County 35 kmGrant County 50 kmCowley County 50 kmHarper County 64 kmSedgwick County 68 kmNoble County 78 kmGarfield County 87 kmKingman County 87 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 (mb_lg)
Depth
5.0 km below the surface
Felt
no reports yet
Nearest
Sumner County, 21 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2550 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 37.0772, -97.3628. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Sumner County, KS 21 km (13 mi) SSE of here earthquakes near Sumner County
Kay County, OK 35 km (22 mi) NNW of here earthquakes near Kay County
Grant County, OK 50 km (31 mi) NE of here earthquakes near Grant County
Cowley County, KS 50 km (31 mi) WSW of here earthquakes near Cowley County
Harper County, KS 64 km (40 mi) E of here earthquakes near Harper County
Sedgwick County, KS 68 km (42 mi) S of here earthquakes near Sedgwick County

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

Aftershocks so far

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

  1. 1.9 1 km SSW of Renfrow, Oklahoma
  2. 1.6 7 km SSW of Nardin, Oklahoma
  3. 1.8 7 km N of Medford, Oklahoma
  4. 2.6 7 km NNW of Medford, Oklahoma
  5. 2.1 6 km SSW of Nardin, Oklahoma
  6. 1.7 9 km W of Lamont, Oklahoma
  7. 1.6 11 km SW of Hunnewell, Kansas
  8. 1.5 4 km SSW of Renfrow, Oklahoma
  9. 2.4 11 km NE of Caldwell, Kansas
  10. 1.7 9 km W of Lamont, Oklahoma
  11. 3.1 9 km W of Lamont, Oklahoma
  12. 1.6 7 km N of Nardin, Oklahoma
  13. 1.5 12 km SW of Hunnewell, Kansas
  14. 1.8 7 km SE of Braman, Oklahoma
  15. 1.7 8 km ESE of Braman, Oklahoma

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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.1 on 2017-03-29 — it released about 250 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.