What San Francisco didn't learn from the '06 quake - By Charles Smith, San Francisco Chronicle
According to Chief Building Inspector Laurence Kornfield (one of four city CBIs), San Francisco has already mandated two such seismic risk-reduction programs. A 1969 ordinance required owners to strengthen, remove or replace parapet walls, cornices, chimneys and other architectural features that tend to fall off in a quake and kill people below.
(As Chronicle architect columnist Arrol Gellner has noted, this is the basis of an apocryphal story in which a correspondent wires from a quake zone, 'Buildings are fine, but all the architecture fell off.' The San Francisco fire chief was killed in the 1906 quake by just such a cornice toppling from an adjacent building.)