Disasters of Natural Origin - Total Affected per Million People

Total affected: In EM-DAT, people that have been injured, affected and left homeless after a disaster are included in this category.

Disaster: Situation or event, which overwhelms local capacity, necessitating a request to national or international level for external assistance; An unforeseen and often sudden event that causes great damage, destruction and human suffering. Though often caused by nature, disasters can have human origins. Wars and civil disturbances that destroy homelands and displace people are included among the causes of disasters. Other causes can be: building collapse, blizzard, drought, epidemic, earthquake, explosion, fire, flood, hazardous material or transportation incident (such as a chemical spill), hurricane, nuclear incident, tornado, or volcano. Natural disasters include : Droughts, Earthquakes, Extreme Temperatures, Floods, Insect infestation, Slides, Volcanic eruptions, Wave/surges, Wild fires and Wind storms.

受影响总人数：在EM-DAT灾害数据库中，该类别涵盖了灾害发生后受伤、受影响以及无家可归的人群。
灾害：指超出地方应对能力，需向国家或国际层面申请外部援助的局势或事件；属于突发且难以预料的事件，会造成严重破坏、损毁与人类苦难。灾害虽常由自然因素引发，但也可能源于人为活动。摧毁民众家园并导致流离失所的战争与内乱，亦被纳入灾害成因范畴。其他灾害成因包括：建筑物坍塌、暴雪、干旱、流行病、地震、爆炸、火灾、洪水、危险物质或运输事故（如化学品泄漏）、飓风、核事故、龙卷风、火山活动。自然灾害则涵盖：干旱、地震、极端气温事件、洪水、虫害、山体滑坡、火山喷发、海浪/风暴潮、野火以及风暴。