If you read nothing else (beyond the article and this post), please read the “The Seismic Future of Cities (pdf),” a 2009 paper by Roger Bilham of the University of Colorado, who just returned from Haiti and has been roaming the world weighing which cities are most in harm’s way. (Dr. Bilham also wrote an opinion piece on bad construction in quake zones, focused on Haiti, that ran in Nature last week.)
He is part of a Greek chorus of seismologists and earthquake engineers who have been warning for a long time that some of the world’s biggest, fastest-growing cities are “ rubble in waiting,” given the haphazard rush of construction of apartments and workplaces for mainly poor new residents.