Aftershock knocks house off foundations

Christchurch was hit with a swarm of aftershocks overnight. Photo / Sarah Ivey

A house has been shaken from its foundations in the Christchurch suburb of Waltham overnight after a night of reasonably strong earthquakes.

Earlier this morning there was a 4.3 magnitude earthquake.

At 3.15am there was a 4.5 that was also shallow at 6 km deep, just before midnight there was a 3.5 and before 11pm there was a 4.4.

All were centred southwest of Christchurch.

- NEWSTALK ZB