Finance company PwC's post-2011 earthquake return to Christchurch's city centre has been given a brief pause by Monday's magnitude-7.5 quake.
The finance industry giant was on Monday set to move its staff into a new Christchurch office, its official return to the city's CBD after it moved 100 workers from the area after the 2011 quake.
But corporate affairs director Vasantha Naidoo said the first day back at the office had been delayed by warnings to stay out of the CBD following a large quake centred near Hanmer Springs that's killed two people and caused damage across the region.
"Once it's safe to go back into the CBD, our staff will be moving in," she said.
She said latest advice suggested the area would be cleared by mid-morning.
Although no serious damage has been reported in Christchurch, a tsunami warning was issued in the region following the quake.
Taking three years to complete, PwC's multi-rise building sits on the bank of the Avon River.
WorkSafe and the Canterbury Rebuild Safety Charter were also set to visit construction sites across Canterbury from Monday to raise awareness about the dangers of fatigue and drinking alcohol and taking drugs.
A spokesman said with WorkSafe's offices in Nelson, Christchurch and Wellington closed for the day, and building sites likely cleaning up messes, the visits would be postponed.