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
Flood warning be influenced by a number of factors, which include: A computer system for flood warning will usually contain sub-systems for: The type of flood warning service available varies greatly from country to country, and a location may receive warnings from more than one service. Arrangements for flood warnings vary across the United Kingdom with several agencies leading on warnings for emergency responders and the public. The Environment Agency, Natural Resources Wales and Scottish Environment Protection Agency all undertake location specific flood warning activities for communities at risk depending upon the scale of flood risk, technical challenges and investment needed to