To provide a disaster situation determination apparatus capable of quickly and accurately determining a disaster situation in a specific area in the occurrence of a disaster by using a mobile unit such as a mobile phone.

The disaster situation determination apparatus which determines the situation of the user of a mobile unit on the basis of mobile unit information about the mobile unit includes: a subscriber profile holding part 301, a subscriber location information holding part 303, and a disaster area subscriber profile transmitting part 304 which determine whether the mobile unit has moved before or after the occurrence of the disaster on the basis of movement information about the movement of the mobile unit positioned in the disaster occurrence area; and a safety state determination part 308 which determines that there is a possibility of the mobile unit user having suffered if the mobile unit is not determined to have moved after the occurrence of the disaster.