3.2.sters distribution and law research.
We can analyze and Interpret remote sensing image data by RS and GIS technology, not only to
identify the number, distribution and characteristics of disaster affected areas, also create a disaster-related
information database, and analyze and research characteristics of distribution and development to a large
number of secondary disasters. For example, in the earthquake disaster, we can use remote sensing images
to reveal the spatial location and distribution of earthquakes, and control related geologic factors
development by GIS spatial analysis, and clear possible affect object, scope, extent in the earthquake
hazards points, to provide technical support of making post-disaster relief and scientific reconstruction [4].
We can overlay the vector-based geographic data and the basic geological data with remote sensing data,
and spatial analysis to geological disasters of earthquake, further obtain coupling relationship and laws
between the hazard and various factors.