Testing the Australian Megatsunami Hypothesis. More than 300000 lives and property worth more than $150bn on the NSW coast are vulnerable to large tsunamis but at present we do not have a clear idea about how often such tsunamis occur and how big they might be. This project will identify and date evidence for past tsunamis on the coasts of NSW and west New Zealand which will help us understand regional tsunami risk. This will provide knowledge that will guide tsunami risk management practice in ....Testing the Australian Megatsunami Hypothesis. More than 300000 lives and property worth more than $150bn on the NSW coast are vulnerable to large tsunamis but at present we do not have a clear idea about how often such tsunamis occur and how big they might be. This project will identify and date evidence for past tsunamis on the coasts of NSW and west New Zealand which will help us understand regional tsunami risk. This will provide knowledge that will guide tsunami risk management practice in vulnerable areas of NSW and help underpin the developing Australian Tsunami Warning System. Read moreRead less