Abstract
In this research, supposing the time of an earthquake disaster, the water cycle system in an urban area is synthetically diagnosed from the both sides of the direct damage to the water supply and sewage system, which constitutes water cycle system, and complicated water environmental pollution. Since it is difficult tocatch about water environmental pollution especially, the process of investigation is proposed. Based on this approach, the database is created using GIS, and the local diagnosis and the diagnosis of the intake facility is performed. Finally, the influence of the water cycle system on an earthquake disaster is considered.
