Hydraulic fracturing creates very small earth
tremors that are almost always too weak to be
detected at the surface. There has been only
one documented case (near Blackpool in
northwest England) and three possible cases
where hydraulic fracturing has caused seismic
events that could be detected at the surface.
None of these cases resulted in surface damage
and none occurred at BP locations. We evaluate
industry-recommended guidance for avoiding
seismic activity and apply these practices
to our operations.