pylons and the Cook Strait cable. • SH 1, the Kiwirail network, and possibly the Wairau and Ure/Waima Bridges, could be damaged and impassable in places along the east coast. • Ships and vessels in port or marinas could be swept inland. • Huge rafts of debris are likely to occur in the Sounds and in Te Koko-o- Kupe/Cloudy Bay. Economic: • The impact of demolishing the Picton ferry terminal would be felt throughout the South Island and to a lesser extent the North Island. • Insurance companies would struggle to cope with the impact. • The rebuild would take many years and be hugely expensive. Natural: • Slips caused by the waves in the Sounds are likely to cause further seiching. • All coastal wetland will be inundated. • Salt water is likely to contaminate some of the lower fresh water aquifers. How do we • GNS Sciences have mapped the likely inundation of tsunami along the entire manage the risk? length (1,750km) of the Marlborough coastline. • The inundation maps have been placed on the Council website. • Coastal community open days have been held to raise awareness of the hazard and engage the public in developing response plans for individual communities. • Clear messaging has been communicated about the need to evacuate in the event of an ( Long or Strong, Get Gone) • A three part National Exercise (Tangaroa) has been held with all responding, recovery and welfare agencies to test a response to a significant tsunami and lessons will be learnt from that. • CDEM staff and communities receive warnings from the Ministry in the event of regional and distant source tsunami risk to NZ, including through EMA What more • Completing evacuation plans for the communities most at risk such as Rarangi, should we be Okiwi Bay, Havelock and Picton. doing? • Placing signage at high use sites and camp grounds (eg; Marfells Beach) showing the possible inundation zones and with key messaging. • Have a CDEM response plan for near source tsunami (less than an hour). Marlborough Civil Defence Emergency Management Plan, 2017-2022 Page 87