Quake clean-up begins in Avonside for a second time

Audio, Radio New Zealand

In Avonside, one of the suburbs most badly affected by the September 4th earthquake in Christchurch, a second massive clean-up operation is underway.

Seismic engineer on the quake's effect on buildings

Audio, Radio New Zealand

A seismic engineer says many of the Christchurch buildings destroyed in Tuesday's quake weren't designed to cope with such intense forces - and it's possible damage from the September 4th earthquake went undetected.