And a fault slip rateis directly correlated to when the faultwill rupture next....

And a fault slip rate
is directly correlated to when the fault
will rupture next. {\an8}Experts predict a 72% chance
of a major earthquake {\an8}Experts predict a 72% chance
of a major earthquake {\an8}in San Francisco
within the next 30 years, with the potential
to shake the city at levels not seen
for over a century. [narrator] But the city
isn't sitting and waiting for the next big one
to strike. Plans are being laid
to shore up the seawall so that the Embarcadero
and the towers have the best chance
of survival. {\an8}[John speaking]