http://engineeringtv.com/blogs/etv/archive/2008/10/08/seismic-protection-system.aspxWhile woodframe structures have historically performed well with regard to life safety in regions of moderate to high seismicity, these types of low-rise structures have sustained significant structural and non-structural damage in recent earthquakesenCommunityServer 2007.1 (Debug Build: 20917.1142)