Research on Rapid Assessment Technology of Earthquake Disaster Loss Based on GIS

After the earthquake, the rapid assessment of earthquake disaster losses is the primary task, which can provide decision-making basis for emergency rescue operations. Considering the advantages of Geographic Information System (GIS) technology, GIS is widely used in the rapid assessment of earthquake disaster losses. This paper presents a rapid assessment technique for earthquake disaster losses based on GIS, and provides the overall architecture design of the system. The key technologies of the whole chain of the system are realized, including automatic trigger calculation, disaster loss assessment based on spatial analysis, auxiliary decision support technology, visual expression of disaster loss, and so on. The GIS-based rapid assessment system for earthquake disasters has been deployed and applied in actual earthquake emergency work, providing a guarantee for improving earthquake emergency response capability and reducing earthquake disaster losses.