"Disaster prevention Ryugasaki" is a disaster prevention app created for everyone connected with Ryugasaki city. It has the following functions and can be used free of charge in the event of a disaster or in normal times. ◆Notification function You can receive crisis management information from Ryugasaki City regarding disaster prevention and disasters. Promptly grasping the situation of the disaster will lead to subsequent actions. ◆Disaster prevention map function You can check the shelt