noun
man-made disaster; human-induced disaster
Refers to disasters caused by human activity, such as industrial accidents, pollution, or war, as opposed to natural disasters (自然災害).
Antonyms: 自然災害
この事故は自然災害ではなく、明らかな人為災害だ。
This accident is not a natural disaster but clearly a man-made disaster.
自然災害 refers to natural disasters (earthquakes, typhoons, etc.), while 人為災害 specifically denotes disasters caused by human actions.
Compound of 人為 (じんい, 'human action') and 災害 (さいがい, 'disaster').