"International Day for Disaster Reduction, held every 13 October, celebrates how people and communities around the world are reducing their exposure to disasters and raising awareness about the importance of reining in the risks that they face. The 2016 edition marks the launch of the new "Sendai Seven" campaign, centred on the seven targets of the Sendai Framework.
International Day for Disaster Reduction encourages every individual, community and government to take part in building more disaster resilient communities and nations.
It started in 1989, after a call by the United Nations General Assembly. The UN General Assembly sees International Day for Disaster Reduction as a way to promote a global culture of risk-awareness and disaster reduction. That includes disaster prevention, mitigation and preparedness. It was originally celebrated on the second Wednesday of October (Resolution 44/236, 22 December 1989), but after two decades the UN General Assembly formally designated 13 October as the annual date (Resolution 64/200, 21 December 2009)." (taken from www.unisdr.org/we/campagin/iddr)