Academy of Disaster Reduction and Emergency Management of the Ministry of Civil Affairs and Ministry of Education Beijing Normal University Beijing 100875 China;
Academy of Disaster Reduction and Emergency Management of the Ministry of Civil Affairs and Ministry of Education Beijing Normal University Beijing 100875 China;
Academy of Disaster Reduction and Emergency Management of the Ministry of Civil Affairs and Ministry of Education Beijing Normal University Beijing 100875 China;
Academy of Disaster Reduction and Emergency Management of the Ministry of Civil Affairs and Ministry of Education Beijing Normal University Beijing 100875 China;