Stage 3 land report

Cover of Stage 3 Main Report.

Canterbury Earthquakes 2010 and 2011

Land report as at 29 February 2012

Published: July 2012

Please note: The information in this report is up to date as of 29 February 2012: it does not take into account any aftershocks or earthquakes that occurred after that date.

Introduction

Purpose

The main purpose of this report is to provide information on how the Canterbury earthquake series, beginning on 4 September 2010, has changed residential land in the wider Christchurch area. It explains the technical information collected and the processes used to collect it.

Tonkin & Taylor (T&T ) has collected this information to assist the Earthquake Commission (EQC) in assessing insurance claims made under the Earthquake Commission Act 1993. T&T provides land damage assessments of individual properties and advice to EQC.

Information gathering

T&T geotechnical experts were on the ground assessing initial land damage immediately after all four main earthquakes of 2010 and 2011 (4 September 2010; 22 February, 13 June and 23 December 2011). Preliminary mapping information gathered immediately after the events has been progressively added to with more detailed assessment techniques explained in this report.

This report includes the best available data collected at the time, following the Canterbury earthquakes of 2010 and 2011. The information provided is up-to-date as of 29 February 2012 and does not take into account any subsequent aftershocks or earthquakes that may have occurred after that date.

Technical language

This report is written in plain English where possible, but it does contain technical information where this is necessary to accurately explain the nature of investigations, and the land change effects of the earthquakes.

A glossary is included at the end of the main body of the report.

Appendices

The Appendices to this report provide visual explanations of land damage types and suburb specific information.

Document help

This report is broken down into chapters, to make downloading easier. However, some PDF files are still large. If you're unable to download any files, please email us for help.

Main report

Main report (PDF, 1.2 MB) 

Appendix A: Generic land damage types

Generic land damage types (PDF, 2.4 MB)

Appendix B: Suburb maps

Christchurch overview (PDF, 2.4 MB)

Northern maps (PDF, 3.7 MB)

Central suburbs (PDF, 6.8 MB)

Eastern suburbs (PDF, 7 MB)

Southern suburbs (PDF 635KB)

Port Hills and Lyttelton suburbs (PDF, 1.6 MB)

Appendix C: Factsheets

Kaiapoi (PDF, 1 MB)

Kairaki Beach to Pines Beach (PDF, 711 KB)

Spencerville to Brooklands (PDF, 712 KB)

Casebrook to Belfast (PDF, 1.4 MB)

Parklands to Waimairi Beach (PDF, 1.1 MB)

Ilam to Bishopdale (PDF, 2.5 MB)

Merivale to Mairehau (PDF, 2.7 MB)

Richmond to Burwood (PDF, 2 MB)

Aranui to North New Brighton (PDF, 1.7 MB)

Hillmorton to Riccarton (PDF, 2 MB)

Cashmere to Sydenham (PDF, 2.3 MB)

St Martins to North Linwood (PDF, 2.3 MB)

Redcliffs to South New Brighton (PDF, 2.3 MB)

Halswell (PDF, 2.3 MB)

Tai Tapu to Halswell (PDF, 888 KB)

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