QuakeIndex

Earthquake · reviewed by a seismologist

M 3.3mwr

10 km N of Ellis, Kansas

· 5.0 km deep · released about 1.3 tons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Ellis County 26 kmTrego County 29 kmRooks County 40 kmGraham County 45 kmRush County 61 kmNess County 69 kmRussell County 70 kmOsborne County 77 kmGove County 81 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 3.3 (mwr)
Depth
5.0 km below the surface
Felt
39 reports · strongest reported intensity IV
Measured shaking
intensity IV (ShakeMap)
Nearest
Ellis County, 26 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1497 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 39 people have reported feeling it to USGS.

How big was it?

This earthquake released about 1.3 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.3 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 130,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 5,600× the energy of this one
  3. Magna, Utah 2020 M 5.7 4,000× the energy of this one
  4. This earthquake M 3.3 about 1.3 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 2.8× 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 39.0361, -99.5676. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Ellis County, KS 26 km (16 mi) WNW of here earthquakes near Ellis County
Trego County, KS 29 km (18 mi) ENE of here earthquakes near Trego County
Rooks County, KS 40 km (25 mi) SSW of here earthquakes near Rooks County
Graham County, KS 45 km (28 mi) SE of here earthquakes near Graham County
Rush County, KS 61 km (38 mi) NNW of here earthquakes near Rush County
Ness County, KS 69 km (43 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. 2.9 7 km N of Hays, Kansas
  2. 2.8 10 km SSW of Stockton, Kansas
  3. 2.5 1 km NE of Zurich, Kansas
  4. 2.6 14 km WSW of Natoma, Kansas
  5. 2.5 3 km NE of Bogue, Kansas
  6. 2.8 16 km S of Hill City, Kansas
  7. 3.0 2 km SW of Zurich, Kansas
  8. 2.7 2 km E of Hill City, Kansas
  9. 2.6 6 km SE of Hill City, Kansas
  10. 2.1 9 km SW of Bogue, Kansas
  11. 2.7 17 km NNE of Collyer, Kansas
  12. 2.5 7 km S of Hill City, Kansas
  13. 2.4 11 km SSE of Hill City, Kansas
  14. 2.3 10 km SE of Hill City, Kansas
  15. 2.3 10 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

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