Sequential analysis of China's hazards in geoscience

At the request of the IGU Study Group on Rapid Geomorphologic Hazards, the author has dealt with a lot of information on China's hazards in the course of compiling geomorphic hazard inventories. While analyzing those hazards throughout history, especially in the past two decades, the author found that quite many hazards used to be either interrelated or associated with each other. On the basis of a large number of eventful catastrophic cases both in China and its adjacent areas, this paper analyzes and sums up the following seven major sequences with respect to the occurrences and transformations in geo-hazards: 1) Dry-cold wind-drift sand (dust) storm type, 2) Warm-wet water-soil hazards type, 3) Wet-hot typhoon hazards type, 4) Alpine freezing-gravity hazards type, 5) Earthquake-rainstorm and mud-rock flow type, 6) Earthquake-forest fire hazards type and 7) Earthquake-tsunami hazards type.