Photogrammetry is a technique that aims at obtaining the position, shape and geometric features of objects indirectly from one or more photographs. The advantage of the indirect measurement is very crucial for projects related to earthquakes, as the images can be taken remotely and the buildings do not have to be entered. Furthermore, the recorded images have high information content, so that other objects can also be measured later, even if that had not been planned at the beginning. The prerequisite is the known internal and external parameters of the camera. Photogrammetric software packages allow for the processing of the images, as well as further information or constraints in a so-called bundle adjustment program. The photogrammetric measurements yield values for the relevant building and
damage structures, from which other measures can be also derived (e.g. deformation, inclination) . This information is then transferred to the GIS