Seismic Loss Estimation in Tehran: A case study for Zone 1

The present study estimated the seismic loss due to probable earthquake in Tehran in zone one of Tehran municipality as a case study. To this end, the damage and fatality functions, which were updated based on data from some recent earthquakes such as Bam (2003) and Dahooye-Zarand (2004) earthquakes, were employed. In these functions, the building damage was estimated at three extensive, moderate and slight damage levels. Furthermore, the fatality functions for different building types were estimated at three levels: death, major injury and minor injury. For loss estimation, two north Tehran fault and floating point earthquake scenarios were assumed. Then, the structural damages and human casualties for two north Tehran fault and floating earthquake scenarios were calculated. Based on the results, the rates of killed, heavily injured and wounded population for north Tehran fault and floating point scenarios were found to be 6.2%, 4.6%, 19.3% and 5.3%, 3.9%, 16.3%, respectively.