I thought the explosion was ground floor?? I was at the time a chief=20 engineer for a precast/prestressed concrete plant, and followed the=20 results, but yes, all the floors of that apartment came down. On 4/13/2014 7:38 PM, David C Brown wrote: > Yes,Ronan point is in east London, UK. The explosion was actually in a= n > 18th floor apartment of the 22 story building. The four flats above > collapsed immediately and there was then progressive collapse of the lowe= r > floors. > --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .