Which of the following is not a valid assumption for emergency planning in the context of natural disasters?

In emergency planning, particularly regarding natural disasters, the assumption that some plants or facilities are not vulnerable to such events is not valid. This perspective can lead to significant oversights in safety and preparedness measures.

Natural disasters can occur in many forms, such as hurricanes, earthquakes, floods, and wildfires, and can impact almost any facility regardless of its location or built design. The variability of natural events combined with shifting environmental conditions makes it essential that all facilities acknowledge their potential risks and vulnerabilities. This assumption promotes a false sense of security, potentially hindering proactive measures that could protect people and property.

Meanwhile, the other statements reflect valid considerations in preparing for emergencies. Most disasters tend to occur with little warning, emphasizing the need for preparedness. A thorough evaluation of each facility helps identify specific risks, and considering environmental and economic factors contributes to a comprehensive emergency strategy, ensuring that all relevant aspects of disaster impact are assessed and addressed.