QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4ml

Earthquake near Junction City, KS

USGS: 8 km WSW of Woodbine, Kansas

11:28 pm CDT, Mar 24, 2020 · · 5.0 km deep · released about 120 lb of TNT

Every earthquake near Junction City Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Dickinson County 14 kmGeary County 35 kmMorris County 36 kmMarion County 46 kmSaline County 52 kmRiley County 64 kmClay County 64 kmOttawa County 66 kmChase County 66 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
11:28 pm CDT on 24 March 2020 ()
Where
34 km (21 mi) SW of Junction City, KS · earthquakes near Junction City
Magnitude
M 2.4 (ml)
Depth
5.0 km below the surface
Felt
1 report · strongest reported intensity III
Nearest
Dickinson County, 14 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2302 days ago

A magnitude 2.4 earthquake was recorded 34 km (21 mi) SW of Junction City, KS, at 11:28 pm CDT on 24 March 2020 (04:28 UTC). 1 person has reported feeling it to USGS. This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

Earthquakes near other towns within 30 km: Herington, Abilene, Chapman.

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.

For this area

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

Before 2016, the USGS record since 1900 lists no earthquake of M5 or more within 50 km.

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Epicentre 38.7735, -97.0536. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Dickinson County, KS 14 km (9 mi) NW earthquakes near Dickinson County
Geary County, KS 35 km (22 mi) NE earthquakes near Geary County
Morris County, KS 36 km (22 mi) ESE earthquakes near Morris County
Marion County, KS 46 km (29 mi) S earthquakes near Marion County
Saline County, KS 52 km (32 mi) W earthquakes near Saline County
Riley County, KS 64 km (40 mi) NNE earthquakes near Riley County

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

Aftershocks so far

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

  1. 2.4 7 km ENE of Hope, Kansas
  2. 2.5 6 km ENE of Hope, Kansas
  3. 2.5 5 km WSW of Gypsum, Kansas
  4. 2.4 6 km SW of Woodbine, Kansas
  5. 2.5 5 km WSW of Gypsum, Kansas
  6. 3.1 5 km SW of Gypsum, Kansas
  7. 2.7 Kansas
  8. 1.8 6 km E of Assaria, Kansas
  9. 3.1 4 km ESE of Assaria, Kansas
  10. 2.5 8 km SW of Gypsum, Kansas
  11. 2.4 8 km SW of Gypsum, Kansas
  12. 2.8 4 km SW of Gypsum, Kansas
  13. 2.5 8 km SW of Gypsum, Kansas
  14. 2.5 6 km WSW of Gypsum, Kansas
  15. 3.7 7 km WSW of Gypsum, 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.