Some phenomena worthy of attention are extracted from Table and (1) Fire and explosion are the main types of technological hazards that trigger domino effects in CPI ; (2) Meteorological hazards have caused the greatest number of Na-tech scenarios followed by hydrological and geological hazards . However, due to the severe consequences and escalation events, earthquakes, lightning, hurricane, and floods have obtained most of the attention in previous studies ; (3) Most of the multi-hazard coupling scenarios triggered by earthquakes show ignition probabilities that far exceed those of traditional accident scenarios ; (4) Largescale natural hazards such as hurricanes, lightning, earthquakes, and floods may rapidly lead to a series of loss of simultaneous containment (LOC) events in a CPI system, causing multiple simultaneous fires, explosions, or toxic cloud emissions ; (5) Natural hazards may damage the safety barrier sub-system, lifelines (such as water supply systems, power systems, etc.) and other critical infrastructures (such as safe passages), which will greatly hinder the efficiency and effectiveness of emergency management .