Summer services update
Land Information New Zealand (LINZ) has recognised that the ground movements that have occurred as a result of the Canterbury Earthquake Sequence (CES) may have implications for cadastral survey work. LINZ have requested that T&T collate this report to provide background geotechnical information about these ground movements.
The purpose of this report is to provide an overview of the various mechanisms of ground movement that have occurred across Canterbury as a result of the CES, focussing on horizontal ground movements of most relevance for cadastral surveyors.
The report explains the key geological mechanisms, and outlines the data that is available on the Canterbury Geotechnical Database (CGD) that relates to these mechanisms. It also seeks to summarise the key features and limitations of this information that need to be considered when using the data.