QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5ml

11 km NNW of South Haven, Kansas

· 6.5 km deep · released about 5.9 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Sumner County 11 kmKay County 46 kmGrant County 49 kmHarper County 54 kmCowley County 56 kmSedgwick County 60 kmKingman County 76 kmNoble County 87 kmAlfalfa County 89 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 1.5 (ml)
Depth
6.5 km below the surface
Felt
no reports yet
Nearest
Sumner County, 11 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3183 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 5.9 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,500,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,800,000× the energy of this one
  3. Around the size people start to feel M 3.0 160× the energy of this one
  4. This earthquake M 1.5 about 5.9 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 37.1415, -97.4642. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Sumner County, KS 11 km (7 mi) SSE of here earthquakes near Sumner County
Kay County, OK 46 km (29 mi) NW of here earthquakes near Kay County
Grant County, OK 49 km (30 mi) NE of here earthquakes near Grant County
Harper County, KS 54 km (33 mi) E of here earthquakes near Harper County
Cowley County, KS 56 km (35 mi) W of here earthquakes near Cowley County
Sedgwick County, KS 60 km (37 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

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

  1. 1.7 7 km NNW of Renfrow, Oklahoma
  2. 1.8 4 km NW of Bluff City, Kansas
  3. 2.2 5 km E of Harper, Kansas
  4. 1.6 7 km E of Freeport, Kansas
  5. 2.5 4 km NW of Braman, Oklahoma
  6. 1.7 6 km NNE of Bluff City, Kansas
  7. 3.0 5 km NNE of Nardin, Oklahoma
  8. 2.6 10 km WNW of Caldwell, Kansas
  9. 2.0 3 km NNE of Renfrow, Oklahoma
  10. 2.1 7 km N of Argonia, Kansas
  11. 2.7 4 km NNW of Braman, Oklahoma
  12. 2.6 4 km NW of Braman, Oklahoma
  13. 1.7 10 km N of Caldwell, Kansas
  14. 1.7 3 km W of Freeport, Kansas
  15. 2.6 4 km NW 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 7,200 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.