QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4mb_lg

6 km NNE of Argonia, Kansas

· 5.0 km deep · released about 120 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Sumner County 24 kmHarper County 32 kmKingman County 44 kmSedgwick County 47 kmGrant County 59 kmReno County 76 kmKay County 78 kmCowley County 81 kmAlfalfa 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
Sumner County, 24 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1584 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 37.3203, -97.7457. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Sumner County, KS 24 km (15 mi) WNW of here earthquakes near Sumner County
Harper County, KS 32 km (20 mi) ENE of here earthquakes near Harper County
Kingman County, KS 44 km (27 mi) SE of here earthquakes near Kingman County
Sedgwick County, KS 47 km (29 mi) SSW of here earthquakes near Sedgwick County
Grant County, OK 59 km (37 mi) N of here earthquakes near Grant County
Reno County, KS 76 km (47 mi) SSE of here earthquakes near Reno County

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

Aftershocks so far

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

  1. 1.6 3 km ESE of Manchester, Oklahoma
  2. 1.8 6 km SSE of Manchester, Oklahoma
  3. 1.7 7 km SSE of Manchester, Oklahoma
  4. 1.9 7 km SSE of Manchester, Oklahoma
  5. 1.5 9 km S of Bluff City, Kansas
  6. 2.1 4 km SSE of Cheney, Kansas
  7. 2.4 7 km SSE of Bluff City, Kansas
  8. 2.3 6 km SW of Goddard, Kansas
  9. 1.6 9 km WSW of Hunnewell, Kansas
  10. 2.1 3 km WNW of Renfrow, Oklahoma
  11. 1.8 3 km NW of Renfrow, Oklahoma
  12. 2.0 9 km ESE of Renfrow, Oklahoma
  13. 2.2 6 km SSE of Bluff City, Kansas
  14. 3.2 9 km N of Norwich, Kansas
  15. 2.6 3 km ENE 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.0 on 2019-01-16 — 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.