Tsunami Scenario Database

A catalogue of scenarios for tsunami-generating earthquakes has been constructed. The scenarios are grouped by the regions of potential tsunami origins around the Pacific Rim as defined by MCDEM (2008). The regions are divided into subregions representing unique source areas. Within each subregion propagation models have been computed for scenarios associated with earthquakes at intervals of 0.2 in MW. Forecasts of the maximum wave-heights around the New Zealand coasts associated with each scenario are expressed in terms of the maximum water–level (m) attained within each MCDEM coastal zone for tsunami warnings. This maximum water-level information has been put into the form of a threat–level for each coastal zone. By using the maximum water-level anywhere within the coastal zone as an estimate of the threat-level a degree of conservatism is incorporated. The tsunami threat level models included here are the best forecast models that the Duty Team and GeoHazard Analysts currently has to advise MCDEM in the immediate aftermath of an earthquake. Although these models were created with best endeavours, they do have limitations. When time allows they should be subject to interpretation and revision by the TEP. Under no circumstances should these models be released outside of GNS Science. DOI: https://doi.org/10.21420/9JJV-WY50 Cite as: GNS Science. (2020). Tsunami Scenario Database [Data set]. GNS Science. https://doi.org/10.21420/9JJV-WY50