In the case of damage to a structure that is the result of an isolated incident, the Director may approve a Certificate of Appropriateness for a structure for which there is a threat of imminent hazard as determined by the Building Official, without public notice. In the case of widespread damage to structures throughout the City (as in the case of an earthquake), the Director shall stay all notices to demolish designated or potential cultural resources, including all structures in designated or potential districts, until a structural engineer with expertise in the restoration of historic structures has evaluated the nature and extent of the damage to each structure, and recommended steps to stabilize each structure. The City shall stabilize or isolate damaged structures to permit persons with appropriate expertise to further evaluate the damage. In cases where a structural engineer with expertise in the restoration of historic structures has determined that the building cannot be stabilized, then the Director may issue a Certificate of Appropriateness for the demolition of one or more structures.