Let's start off with knowing the difference between a catastrophe, hazard, and disaster:
Catastrophe- a situation causing sufficient damage to people, property, or society in which the recovery process is long and complex. EX-hurricane, floods, tornadoes, tsunamis, volcanoes, and wildfires.
Disaster- a sudden event that causes great damage or loss of life during a limited time in a limited area. EX-earthquake, landslides, avalanche, and drought.
Hazard- a danger or a risk EX-electricity, wet floor, exposed wires.