FRAGILITY FUNCTIONS FOR TSUNAMI DAMAGE ESTIMATION

Abstract

  The tsunami fragility functions are proposed as new measures for estimating structural damage and fatality due to tsunami inundation, by integration of satellite remote sensing, field survey, numerical modeling, and GIS analysis. The tsunami fragility functions are expressed as the damage probabilities of structures or fatality ratio with regard to the hydrodynamic features of tsunami inundation flow, such as inundation depth, current velocity and hydrodynamic force. It expands the capability for estimating potential tsunami damage in a quantitative manner.