QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4mb_lg

Kansas

Yes. A magnitude 2.4 earthquake was recorded in Kansas, 39 km (24 mi) WSW of Manhattan, KS, at 4:09 am CDT on 7 July 2022 (09:09 UTC), 1.8 km deep. 8 people have reported feeling it to USGS.

39 km (24 mi) WSW of Manhattan, KS · 149 km (93 mi) NNE of Wichita, KS

· 1.8 km deep · released about 120 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Geary County 20 kmDickinson County 21 kmRiley County 39 kmClay County 41 kmMorris County 46 kmOttawa County 59 kmSaline County 61 kmWabaunsee County 69 kmPottawatomie County 71 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 2.4 (mb_lg)
Depth
1.8 km below the surface
Felt
8 reports · strongest reported intensity IV
Nearest
Geary County, 20 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1520 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth, people at rest would likely notice it out to about 42 km (26 mi) from the epicentre. Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

Likely felt in: Junction City 14 km, intensity III · Herington 37 km, intensity II. Estimated for each town centre; each link is that town's own record.

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 39.0034, -96.9953. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Geary County, KS 20 km (12 mi) E earthquakes near Geary County
Dickinson County, KS 21 km (13 mi) SW earthquakes near Dickinson County
Riley County, KS 39 km (25 mi) NE earthquakes near Riley County
Clay County, KS 41 km (25 mi) NNW earthquakes near Clay County
Morris County, KS 46 km (29 mi) SE earthquakes near Morris County
Ottawa County, KS 59 km (37 mi) WNW earthquakes near Ottawa County

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

Aftershocks so far

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

  1. 2.5 5 km SW of Hope, Kansas
  2. 2.6 6 km NW of Ramona, Kansas
  3. 2.7 7 km SE of Enterprise, Kansas
  4. 2.4 5 km NE of Hope, Kansas
  5. 3.5 5 km NNW of Herington, Kansas
  6. 3.5 6 km WSW of Woodbine, Kansas
  7. 2.7 3 km SSE of Solomon, Kansas
  8. 2.3 11 km N of Hope, Kansas
  9. 2.5 Kansas
  10. 2.8 7 km SW of Woodbine, Kansas
  11. 2.5 6 km E of New Cambria, 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.