An earthquake has hit Christchurch, with residents reporting a "significant shake".
The quake hit at 8.43am, with initial reports from Geonet saying it measured magnitude 3.9 and 7km deep. It was centred about 5km south-west of Christchurch. About 2500 people have reported feeling the quake, with light to moderate shaking.
One resident said their house "boomed and rattled".
People as far north as Opotiki and Taranaki reported feeling it.
