The building is designed to resist earthquakes .
The building is is set on a concrete raft varying in thickness from 0.9 to 3.0 m ( 2 ft 11 in to 9 ft 10 in ) .
The building is designed to resist earthquakes , and is set on a concrete raft varying in thickness from 0.9 to 3.0 m ( 2 ft 11 in to 9 ft 10 in ) .