1. A data analyzing apparatus, comprising: a first storage which stores geographic information; a second storage which stores observation data including contents of an event, a position where the event occurred and a time when the event occurred; a data processing unit configured to generate analyzing data by using the geographic information and the observation data; a data analyzing unit configured to derive a tendency of occurrence of the event based on the analyzing data; and a prediction unit configured to predict a place where the tendency of occurrence of the event is high by using the tendency and the geographic information.