The earthquake was big, but in building a reactor on the PACIFIC RIM you set up your worst case scenario to cover a 1000-year event centered underneath the stru

The earthquake was big, but in building a reactor on the PACIFIC RIM you set up your worst case scenario to cover a 1000-year event centered underneath the structure, and with handsome margins. This was a contingency that was planned for, but for some reason the systems are failing. The measures being taken now are clearly ad hoc, rather than part of an orderly contingency plan.