A 4.5 magnitude aftershock was this morning recorded in Canterbury, less than a day after a 5.0 earthquake caused violent shaking and damage in Christchurch.
The quake was centred 30kms west of Diamond Harbour at a depth of 15km.
This was followed at 10.09am by a 3.4 magnitude quake less
More aftershocks in Canterbury
A seismograph measures the Earth's movements. File photo / Jim Eagles
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