The Design and Implementation of Earthquake Service System in Sichuan Province

Abstract

This paper deeply describes the methodology of Attenuation Model of Seismic Intensity in terms of the characteristics of Sichuan regions and illustrates the method for establishing and modifying Seismic Intensity Effect Fields in the GIS-based system of earthquake service. The proposed method gives a good generation of intensity fields. So the accuracy of generating the spatial distribution scope of damage is improved, especially, via three approaches of modification. In order to achieve the share of earthquake information, the framework of system is designed for three-tier architecture consisting of data service, middleware, and application service tier. Basic spatial data related to the earthquake and attribute data are stored in seismic database in the data service tier to meet the requirements on the client side, such as information querying, analysis and evaluation, etc. The methods of data processing and shortage are proposed in this paper, which are the key steps to make an accurate evaluation for disaster loss and casualties.