said by P Ness
:you just need to put them 70 miles under the ground and when the disaster is over they can just pop out of the ground

seriously you would just need to store the EQ to build or erect these towers, you dont have to have the towers right out in the open.
then 95% of the disasters that could occur would not effect the tower. if built right it would not take long to erect the towers either.
Unless all the people with the expertise to erect the towers are displaced (or can't reach the cached supplies).