The value of lifeline seismic risk mitigation in Christchurch

Abstract

This report is about the substantial range of risk reduction and readiness steps taken by lifeline utilities in Christchurch over recent years to reduce the impact of earthquakes. The work leading to the report of the Christchurch Engineering Lifelines Group in the 1990s, Risks and Realities, is the foundation for many of the measures adopted. As the report notes, seismic mitigation undertaken by Christchurch lifelines since Risks and Realities has served Christchurch well in reducing losses that would otherwise have been much greater. The mitigation work also helped facilitate improved emergency responses and recovery. The report shows that the costs of seismic risk mitigation in Christchurch will have been repaid many times over. It is therefore a most worthwhile investment.