An aftershock has rattled buildings in the earthquake-ravaged city of Christchurch, New Zealand. No serious damage or injuries have been reported.
The US Geological Survey said the 5.5-magnitude quake struck today 14 miles west of Christchurch at a depth of just under two miles.
Christchurch has been rocked by scores of aftershocks since a devastating earthquake struck the city in February, killing 181 people.
The February quake was New Zealand’s most expensive natural disaster, costing an estimated NZ£15bn (£7.5bn)
Today’s quake knocked items off store shelves, but officials say there have been no reports of serious damage or injuries.