- 自然灾害 zìránzāihài natural disasternatural disaster; calamity caused by natural forces such as floods, droughts, or earthquakes
- 地质灾害 dìzhìzāihài geological disasterNatural or man-made disasters that damage the geological environment, such as earthquakes, landslides, or volcanic eruptions
- 次生灾害 cìshēngzāihài secondary disasterA secondary disaster triggered by a primary natural or man-made event, such as a fire or disease outbreak following an earthquake
- 灾害救济 zāihàijiùjì disaster reliefThe provision of timely aid and assistance to individuals or families affected by sudden accidents or natural disasters to ensure their survival and well-being
- 灾害链 zāihàiliàn disaster chaina series of calamities or secondary disasters triggered by an initial event