In Anak Krakatau's fifty years of existence an evolutionary developmental growth of its geomorphology and a gradually changing silica-content in the effusive throughout its five decades of eruptive activity could be recognied (De Neve, 1980, 1981).
This thesis concered with volcanic hazard and risk. The study was addressed to analyzed and mapping of volcanic landform, mapping of volcanic hazard and volcanic risk zones of the area by yusing an aid of aerial photograph and other remote sensing image. Geomorphological approach have been used for analysing the landform wich is relatide to the volcanic hazard and its risk.