It's less the fracking itself rather than wastewater injection. Very similar in Oklahoma.
The huge amounts of wastewater to dispose of are, of course, related to hydraulic fracturing activities.
"Between 1973 and 2012, there was one magnitude-2 earthquake in Kansas [….]. Between 2013 and 2016, there were 127 earthquakes of a magnitude 3 or above in Kansas"
https://www.seismosoc.org/bssa/earthquakes-follow-wastewater-disposal-patterns-southern-kansas/