New Zealand's Christchurch rocked by earthquakes

Two strong earthquakes have rocked the New Zealand city of Christchurch, closing the airport and sending residents rushing from buildings.

The first 5.8 quake struck at 1358 local time (0058 GMT), the US Geological Survey said. A second of similar magnitude hit 80 minutes later.

One person was hurt but there were no reports of large-scale damage.