The research deals with extraction of seismic risk related base data and their different generic aspects. It investigates the generic aspects of images rather than generation of base data. The study looks upon the requirements of the risk model in terms of currency and details. Once the requirements for the risk model is finalized, the next step is to find out what are the possible image data types that could possibly supply those information to run the model successfully. It gives an idea about the data interchange ability that is if the information is not available for an area from the specific imagery then what could be the other possible source or combination of imagery that could be able to provide those information and whether those information would be able to fulfill the requirements of the risk model. In order to find out the solution attempt is made with the help of some of the existing extraction methods based on the requirement of the seismic risk model, so as to extract the required base data. The method is applied in Tehran city in Iran Country, the city that is highly risk area from the seismic point of view. For this the object based extraction is applied to see the variation in result. This same extraction method is applied to all the available images in the study are to see how this method vary as images and the type of area varies and what sort of problems are there in extraction of those base data. Finally on the basis of the experimental result some conclusions are drawn. This type of experiments can be done further for other type of base data so that a base data of desired accuracy can be obtained from suitable imagery.
