Methodologies for assessment of earthquake casualty

In this paper the existing methods for assessing seismic casualty are reviewed and classified into two categories. One is to assess life loss in terms of moneatary form, the other is to estimate human casualty solely. After a systematical and detail analysis,a comparison between these methods is conducted. The comparison study focused to assessing human casualty in some real earthquakes, such as the Tangshan earthquake, Lijiang earthquake and Baotou earthquake by using different methods characterized by using "collapes ratio"as an essential factor. And the estimated results were compared with the observed casualty. Finally, a casualty estimation method is proposed.