Canterbury Earthquake Royal Commission A short guide to some documents of heritage interest. Volume 4 which deals with unreinforced masonry buildings their strengthening and performance is of the greatest heritage interest. Volume 4: Earthquake-prone buildings Section 4: Individual unreinforced masonry buildings that caused fatalities (.docx) Section 5: Unreinforced masonry buildings and their performance in earthquakes (.docx) Section 7: Earthquake-prone buildings policy and legislation (.docx) Appendix 1: Seismic retrofit case studies The focus on the CTV building has meant CCC has got of with relatively little attention to its performance with dealing with sub-standard buildings prior to the earthquakes. It is described as passive. Undoubtedly this passivity contributed to the death toll. Much of the rest oft the commission's report is highly technical - and only specialist structural engineers will cope with all the detail. Still a skim through