QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5mb_lg

9 km S of Glade, Kansas

· 15 km deep · released about 170 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Phillips County 21 kmRooks County 28 kmSmith County 50 kmNorton County 54 kmOsborne County 55 kmGraham County 55 kmHarlan County 65 kmFranklin County 72 kmEllis County 76 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
15 km below the surface
Felt
5 reports · strongest reported intensity III
Nearest
Phillips County, 21 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 530 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 5 people have reported feeling it to USGS.

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 39.5959, -99.3164. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Phillips County, KS 21 km (13 mi) S of here earthquakes near Phillips County
Rooks County, KS 28 km (17 mi) N of here earthquakes near Rooks County
Smith County, KS 50 km (31 mi) WSW of here earthquakes near Smith County
Norton County, KS 54 km (34 mi) ESE of here earthquakes near Norton County
Osborne County, KS 55 km (34 mi) WNW of here earthquakes near Osborne County
Graham County, KS 55 km (34 mi) ENE of here earthquakes near Graham County

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

Aftershocks so far

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

  1. 2.4 12 km NE of Damar, Kansas
  2. 2.9 5 km SW of Kirwin, Kansas
  3. 2.8 10 km SSW of Stockton, Kansas
  4. 2.8 8 km NNW of Stockton, Kansas
  5. 3.3 7 km NNW of Stockton, Kansas
  6. 2.5 1 km NE of Zurich, Kansas
  7. 2.5 11 km NNE of Stockton, Kansas
  8. 2.5 3 km NE of Bogue, Kansas
  9. 3.0 2 km SW of Zurich, Kansas
  10. 2.7 2 km E of Hill City, Kansas
  11. 2.7 11 km NW of Stockton, Kansas
  12. 2.6 7 km SW of Bogue, Kansas
  13. 2.4 8 km SSW of Bogue, Kansas
  14. 3.4 10 km NW of Woodston, Kansas
  15. 2.4 7 km NNW of Agra, 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 4.6 on 2019-06-22 — it released about 1,400 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.