重大灾害（Major disaster）.docVIP

重大灾害（Major disaster） Summary of major disasters and accidents I. natural disasters Concept: natural disasters refer to a series of events, such as casualties, property losses, social instability, destruction of resources caused by abnormal natural changes. Features: 1, sudden 2, destructive 3, uncontrollable Classification: 1. The process of natural disaster formation: sudden and mild natural disasters 2, the cause of occurrence: source disaster and secondary and derivative disasters 3, performance: divided into seven categories: meteorological disasters, marine disasters, floods, geological disasters, earthquake disasters, crop biological disasters and forest biological disasters and forest fires. Two, accident Concept: people engaged in various production activities, as a result of the intentional or negligent behavior, in violation of relevant national safety management laws and regulations or rules and regulations and the occurrence of casualties and material damage, and endangers the social order in the extent of non normal events. Features： 1, accidents usually occur in the process of peoples production activities. 2. The direct cause of the accident is caused by human factors. 3, the consequences of the accident will inevitably lead to a certain degree of material damage, casualties or adverse social impact, which will seriously affect the stability of social security. 4, in the course of the accident, it usually goes through three stages: incubation period, outbreak period and decay stage. Sort: 1, according to the degree of injury to the accident classification: minor injury, serious injury, death, especially major accident. 2, according to the nature of the accident classification: destruction of accidents, responsible accidents and technical accidents. 3, according to the accident of human injury forms and manifestations of classification. 4, the classification of the accident should pay attention to: (1) natural accidents, destruction of suspected accide