Natural disasters in China water-diversification projects to channel excess water from the Chang Jiang to arid northern regions. China had 3 of the top 10 world's most fatal earthquakes, including the 1556 Shaanxi earthquake that reportedly killed more than 830,000 people, listed as the deadliest earthquakes of all times and the third deadliest natural disaster. The 1976 Tangshan earthquake, with death toll estimated to be between 242,419 and 779,000, is ranked the third deadliest earthquake of all times, and 8th deadliest natural disaster. The 1920 Haiyuan earthquake killed 200,000 to 240,000, ranked the fourth deadliest earthquake and 9th deadliest of all natural disasters. The
History of flooding in Canada due to sewer back-up, not fire. Floods occur five times as often as wildfires, the second most frequent natural hazard in Canada. Between 1900 and 2005 there were 241 flood disasters in Canada. The 1894 Fraser River flood had a return period of slightly more than 500 years and the 1948 flood was close to a 200-year event. The 1997 Red River flood was named the 'flood of the century'. The International Joint Commission (IJC)'s 1998 report warned that although the 1997 Red River flood had a "return interval ranging from 100 to 500 years, depending on the location", there