QuakeIndex

Earthquake · reviewed by a seismologist

M 3.1mb_lg

9 km N of Ellis, Kansas

· 5.2 km deep · released about 1,300 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Ellis County 25 kmTrego County 28 kmRooks County 42 kmGraham County 46 kmRush County 60 kmNess County 67 kmRussell County 70 kmOsborne County 78 kmGove County 80 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 3.1 (mb_lg)
Depth
5.2 km below the surface
Felt
19 reports · strongest reported intensity IV
Nearest
Ellis County, 25 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3589 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 19 people have reported feeling it to USGS.

How big was it?

This earthquake released about 1,300 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.1 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 250,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 11,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 7,900× the energy of this one
  4. This earthquake M 3.1 about 1,300 lb of TNT
  5. Around the size people start to feel M 3.0 this one released 1.4× more

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 39.0227, -99.5705. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Ellis County, KS 25 km (16 mi) WNW of here earthquakes near Ellis County
Trego County, KS 28 km (17 mi) ENE of here earthquakes near Trego County
Rooks County, KS 42 km (26 mi) SSW of here earthquakes near Rooks County
Graham County, KS 46 km (28 mi) SE of here earthquakes near Graham County
Rush County, KS 60 km (37 mi) NNW of here earthquakes near Rush County
Ness County, KS 67 km (42 mi) NNE of here earthquakes near Ness County

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

Aftershocks so far

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

  1. 2.6 14 km WSW of Natoma, Kansas
  2. 2.5 3 km NE of Bogue, Kansas
  3. 2.8 16 km S of Hill City, Kansas
  4. 3.0 2 km SW of Zurich, Kansas
  5. 2.7 2 km E of Hill City, Kansas
  6. 2.6 6 km SE of Hill City, Kansas
  7. 2.1 9 km SW of Bogue, Kansas
  8. 2.7 17 km NNE of Collyer, Kansas
  9. 2.5 7 km S of Hill City, Kansas
  10. 2.4 11 km SSE of Hill City, Kansas
  11. 2.3 10 km SE of Hill City, Kansas
  12. 2.3 10 km SSE of Hill City, Kansas
  13. 2.6 7 km SW of Bogue, Kansas
  14. 2.4 8 km SSW of Bogue, Kansas
  15. 2.4 7 km SSE of Hill 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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