Aftershocks continue to shake Christchurch following a 5.7 earthquake that hit at 1.13pm on Sunday.

The cellular phone network is under pressure and Spark is urging people to text rather than call. Scroll down for a recap on what's happened so far.

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* Christchuch earthquake in photos

* What you need to know

* Christchurch hit by severe earthquake

* Insurers not expecting big claims

* Chat recap: GNS seismologist on Christchurch's quakes

* Chances high of another strong quake

BRYN HILL Richmond Hill cliff collapse and dust over Sumner just after shaking stops (as seen from Scarborough Hill).

Stuff.co.nz Hundreds evacuated in central Christchurch after Sunday's earthquake.