Earthquake and tsunami loss estimation of coastal buildings

In recent decades, huge economic losses and casualties have been caused in the coastal cities by earthquakes and tsunamis triggered by earthquakes, so it is of great significance to study loss estimation of earthquake and tsunami disasters. First, the earthquake loss assessment method is proposed. Then, based on the method, a probability model for tsunami loss evaluation from two aspects-tsunami hazard and structural vulnerability, is presented. Considering the combined action of earthquake and tsunami, by quantifying the influence of earthquake damage level on the tsunami resistance ability of buildings, a model for total loss of buildings is established. It provides a simple and fast method for earthquake and tsunami loss estimation and the basis for disaster forecast, disaster reduction management and multi-hazard risk assessment and insurance calculation.