It refers to a situation that requires the national government to take urgent measures for incidents in which many people are killed or injured by means similar to armed
attack or situations in which people face a clear danger of such situations occurring.
Destruction of nuclear power establishments etc.
Discharge of large amounts of radioactive substances causes
people living in the vicinity as well as people who take in contaminated
foods and drinks to be exposed to radiation.
Bombing of petrochemical complex, combustible-gas storage facility
Explosions or fire at these facilities cause damage to
people, buildings and lifelines, disrupting socioeconomic activities.
Attack on ships carrying hazardous materials etc.
Proliferation of hazardous materials causes damage to people
living in coastal areas and disrupts socioeconomic activities, such as
closure of harbors and shipping routes, and contamination of marine resources.
Bombing of facilities frequented by large numbers of people, railroad
Bombing causes human suffering. If such facilities collapse,
it will cause heavy damage.
Damage caused by shrapnel, flying objects, heat, and flames. If normal cell functions are disrupted by radiation, it could cause cancer in later years.
Dispersal of large amounts of biological agents
Biological agents can be dispersed unnoticed by anyone. In cases where infected people move from one place to another during the incubation period of the biological agent and are later found to have been sprayed with the agent, the chances are that the damage has already spread to a wide area. If an attack is made with a biological agent that uses humans being as the medium, the damage caused by secondary infection is expected to spread to a wide area.
Dispersal of large amounts of chemical agents
Chemical agents proliferate leeward by taking topography and weather condition into account. A nerve agent that is heavier than air, such as sarin, spreads as if hugging the ground.
Bomb designed to cause radioactive contamination by spreading radioactive substances.
Suicide terrorist attacks using aircraft
The occurrence of explosions and fires on aircraft causes damage to people, buildings and lifelines, disrupting socioeconomic activities.