The role of citizens and geoinformation in providing alerts and crisis information to the public

Mankind has been facing constant threats and challenges from natural and civilisational disasters for centuries. The fundamental responsibility of states is to protect the lives, health, and property of their citizens. However, protection against natural and civilisational disasters is a complex task in which the population also has to take part, and the availability of geoinformation is a prerequisite for effective protection. The aim of this study is to demonstrate the combined power of both citizens and technology in the task of alerting and informing the public of the opportunities offered by virtual crowdsourcing, Web 2.0, the role of geoinformation, crisis maps, and drones through the application of a qualitative method, by analysing case studies and by searching for internal connections between different phenomena. Citizens around the world can collaborate and contribute to the sharing and collection of geoinformation to create real-time, interactive maps. These so-called crisis maps support intervention organisations in obtaining information, and they can also be used as sources of information. The use of Web 2.0, crisis maps and drones, as well as the emergence of digital humanitarian volunteering, have fundamentally changed the role of the public when it comes to responding to disasters, including alerting them using geoinformation.