They pump sand down the hole also,to fill any voids so B.C. will have to slip into the waters after the next big one on it's own.Kakato, wasn't some environmentalist claimed all the fracking was causing the earth quakes in Oklahoma??
So if Alberta fracks hard enough, maybe they can cause a big earth quake and BC will fall into the Pacific, and Alberta will have so beach front property.. ;-) :lol: