Source: Stuff.co.nz
Traffic cameras have been used to monitor the impact of the tsunami on Christchurch coastlines. Christchurch City Council civil defence staff used a traffic camera on Humphreys Drive to check water levels in the Estuary when the first wave – triggered by an earthquake near Samoa – reached Christchurch shores about 11.30am. A mobile traffic camera has also been positioned in Moncks Bay to record water levels in the Estuary throughout the day. Council civil defence manager Murray Sinclair said the water levels did not rise dramatically when the first wave hit.