There have already been some settlements over damage from injection wells.
Here is a sample from Arkansas.
http://mobile.reuters.com/article/idUSBRE97R16320130828?irpc=932
Of course those are small quakes, nothing like a 6.0
I think the woman in Prague is going to win her suit or more likely reach a settlement over the 2011 quake.
I would say the other quake victims would benefit more if she doesn't settle and wins outright. That would change the dynamics, I think. Just a guess. But it's hard to turn down money.