Study of Intensity Estimation Method Based on Multi-source Earthquake Disaster Information Fusion

The seismic intensity distribution information is the basis of scientific disaster relief, but the accuracy and efficiency of the current commonly used intensity determination methods are mutually exclusive. In recent years, with the rapid earthquake information acquisition means continuously enriched, more and more disaster information quickly collection became possible after the earthquake. According to seismic intensity standard and site investigate norms, this multi-source disaster information can form an organic whole through information fusion technology, and fast determination of intensity can be realized accordingly, thus consideration will be given to both accuracy and efficiency of intensity determination. In this paper, correspondence between the multi-source disaster information and the earthquake intensity is established in the base of disaster information analysis of Sichuan earthquake disaster information fast acquisition and analytical processing system. Then take the multi-source disaster information which were obtained immediately after "4.20 Lushan M7.0 strong earthquake" by Sichuan earthquake disaster information fast acquisition and analytical processing system for example, intensity is judged based on disaster information fusion, and the result is in agreement with the real intensity distribution.