A GIS-based perspective assessment system for oil tanks secondary disasters of earthquake

As a lot of earthquakes all around the world showing, most destructive earthquakes cause secondary disasters. The loss that secondary disasters brought often goes beyond earthquake disaster itself. The oil tanks with flammable and explosive oil often cause secondary destructive damage when they leak, are fired, and thus exploded. The paper studies the characteristics of oil tanks secondary disasters of earthquake and the relationship between the damage of oil tanks secondary disasters and the seismic intensity. And it studies the modeling of the seismic affecting field and the oil tanks hazard caused by earthquake. And it excogitates technique theory of GIS-based perspective assessment system for oil tanks secondary disasters of earthquake that is designed to rate oil tanks hazard in urban area, to help relocate and reconstruct oil tanks in earthquake resistant design, to supply technical supports for administrator´s decision-making in earthquake disaster, and to prevent the oil tanks secondary disasters, fire and explosion, when or before urban earthquake happens.