New Zealand quake damage check

A knock at the door and the order to leave.

Many residents of the New Zealand city of Christchurch must vacate their homes in the aftermath of a major earthquake which shook the area on Saturday.

Before the rebuilding can begin, authorities must inspect the city.

Engineers check buildings for structural integrity -- though many places have become uninhabitable.

An overnight curfew from Saturday into Sunday aimed to prevent people from getting close to fragile buildings.

Damage to water pipes means residents should boil water before using it.

Roads, bridges, and powerlines all show the 7.1 magnitude earthquake"s destructive power.

Memories of the quake"s terrifying 40 seconds are still fresh.

Christchurch is New Zealand"s second biggest city, but no deaths have been reported.

Saturday"s quake ranks among the 10 largest in the country"s history.