The Tsunami Threat to Sydney Harbour, Australia: Modelling potential and historic events.

ABSTRACT: Tsunami modelling of potential and historic events in Australia's Sydney Harbour quantifies the potentially damaging impacts of an earthquake generated tsunami. As a drowned river valley estuary exposed to distant source zones, these impacts are predominantly high current speeds (>2 m/s), wave amplification and rapid changes in water level. Significant land inundation only occurs for scenarios modelled with the largest waves (9.0 M_W source). The degree of exposure to the open ocean and the geomorphology of locations within the Harbour determine the relative level of these impacts. Narrow, shallow channels, even those sheltered from the open ocean, create a bottleneck effect and experience the highest relative current speeds as well as elevated water levels. The largest maximum w

SUBMITTER: Wilson KM 

PROVIDER: S-EPMC6189182 | biostudies-literature | 2018 Oct

REPOSITORIES: biostudies-literature