QuakeIndex

Earthquake · reviewed by a seismologist

M 2.8mb_lg

7 km SE of Glade, Kansas

· 5.0 km deep · released about 480 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Phillips County 19 kmRooks County 33 kmSmith County 43 kmOsborne County 52 kmNorton County 58 kmHarlan County 62 kmGraham County 63 kmFranklin County 65 kmEllis 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 2.8 (mb_lg)
Depth
5.0 km below the surface
Felt
20 reports · strongest reported intensity III
Nearest
Phillips County, 19 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2363 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 20 people have reported feeling it to USGS.

How big was it?

This earthquake released about 480 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 32,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 22,000× the energy of this one
  3. Around the size people start to feel M 3.0 2× the energy of this one
  4. This earthquake M 2.8 about 480 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 39.6359, -99.2433. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Phillips County, KS 19 km (12 mi) SSE of here earthquakes near Phillips County
Rooks County, KS 33 km (20 mi) NNE of here earthquakes near Rooks County
Smith County, KS 43 km (26 mi) WSW of here earthquakes near Smith County
Osborne County, KS 52 km (32 mi) NW of here earthquakes near Osborne County
Norton County, KS 58 km (36 mi) ESE of here earthquakes near Norton County
Harlan County, NE 62 km (38 mi) SSE of here earthquakes near Harlan County

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

Aftershocks so far

20 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 11 km NW of Stockton, Kansas
  11. 3.4 10 km NW of Woodston, Kansas
  12. 2.4 7 km NNW of Agra, Kansas
  13. 2.5 9 km S of Glade, Kansas
  14. 2.6 5 km E of Palco, Kansas
  15. 3.2 12 km S of Alton, 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 500 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.